Katalog Kossik EnglischV2 2

7/23/2019 Katalog Kossik EnglischV2 2

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KOSSIK- Filtertechnik GmbHYour Partner forplant protection

KOSSIK- Filtertechnik

Our work is based onintensive fundamental research,

technical problem solving,customized tasks and international

standardization.


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KOSSIK - Filtertechnik GmbHthe trustful item for

piping filters

Standard- Conical Strainerprotects plant components such as

compressors, pumps, turbines, solenoid valves,measuring instruments etc. from soiling.

The fitting occurs by clamping the conical strainerand two gaskets between a flange pair. Theoncoming-flow goes from the inside to the

outside.

Protective Strainer series Tfulfils the task, to catch solid particle and to

protect plant components next in line. As start-upstrainers, they filter residues, like welding beads,welding cinder, swarf etc., which remain inside

the system after the assembly work.For a permanent service, often the wire cloth of

the strainer needs to be removed.The oncoming flow is vertical top down or

horizontal.

Protective Strainer series Yis characterized by a bigger strainer surface.

The free screening surface is 1.5 times the freepipe cross-section. Thereby it is possible to

achieve slight differential pressure during a cleanstatus. The completely welded design enables anapplication in line-systems and piping accordingto the Druckbehlterverordnung or rather to the

TRD- Regelwerk.The bodies can also be manufactured with a

connecting flange appropriate to DIN or ANSI.

Rectangular StrainerThese protective strainers with cylindrical strainer

insert are predominantly used in power plants.The rectangular strainer design enables the

integration of this element instead of aone- quarter bend.

Retrofitting during rehabilitation, increments or

modernizations can easily be accomplishedbecause of the design. This strainers basic is thefitting position, the space-saving service scope

as well as on a welded construction, which fulfilsall power plant efforts.


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Standard conical strainers are used as start-up strainers during the commissioning procedure for the protection ofpumps and compressors as well as measuring and controlling systems. In the continuous production process,they serve as "police filters" in order to ensure long-lasting plant protection. The large filtering surface offers longservice life together with minimum pressure drop. The oncoming flow from the inside toward the outside providesmaximum strength.

Construction

The dimension sheets specify the standard conical strainers with suitable fit for DIN flanges and ASA flanges. Thepipe or flange internal diameters (for ANSI / ASA J-dimension) as well as the bolt circle diameter and thecontact surfaces or gasket dimensions determine the strainer clamping ring. All flange facing in accordance with

DIN 2526 and ANSI B 16.5 are realised.The clamping rings are normally not mechanical turned on a lathe until after the strainer cone has been weldedinto place; this guarantees plane-parallel, plain and out-of-wind contact facing.

The geometry of the strainer as a truncated cone is the ideal adaptation to the flow profile inside the pipe. In thecentre, the area of maximum flow speed, liquid can flow through the bottom. The straining surface isaccommodated on an overall length that is as short as possible. 1.5 times the inside pipe cross-section is definedas the minimum requirement for the filter surface of the KOSSIK standard conical strainers. The cone angle andthe bottom diameter are suited to each other so that the installation in flanged welded fittings with DIN and ANSIoverall lengths is possible.

Materials

Flange -Material

Perforated Plate -Material

Wire Cloth -Material

Carbon SteelStainless Steel

P 265 GH (H II)1.4571

St 12.031.4571

1.4301 or1.4401

Production

The resistance to medium and temperature is guaranteed by the selection of materials.

No non-ferrous metals solder or additive materials are used.KOSSIK standard conical strainers are completely welded.Thin supporting perforated plates as well as thewire cloths are overlapped and the longitudinal seams are spot-welded in two rows. The round seam at thetruncated cone bottom, the connecting round seam at the clamping ring and also thicker perforated platelongitudinal seams are GTA-welded. The fine wire cloths are protected in the heat influence zone of the roundseams by plate strips which prevent burning and mainly even temper colours. A 6-8 mm high collar on the insideof the clamping ring especially protects the fine cloth during oncoming flow from the outside. The conical straineris centred in the pipe by this projection and damage due to the flange inner edge is therefore prevented duringregular operation and during the assembly work. Perforated plates are punched up to a thickness of 4 mm;beyond that size, drilled holes are used.

All conical strainers are provided with an identification lug. This lug sticks out over the flange edge and indicatesthe installation location. Materials, heat numbers, fabrication batch, items, NPS and pressure rates are stamped.

KOSSIK conical strainers are therefore clearly identifiable and the documentation with acceptance inspectioncertificates in accordance with EN 10204 is possible.

KOSSIK - Filtertechnik GmbHSeries HS G 300Conical Strainer


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Note!Prevent oncoming flow from the outside toward the inside whenever

possible.Otherwise, the operating safety will be put at risk as a result.

The permissible maximum pressure loss due to the elastic bulgingand plastic deformation is minimal.

Design

In accordance with the plant component to be protected, the critical particle size is defined and the suitablestrainer mesh size is selected from a large number of wire cloths mostly kept in stock. Since a cloth alonepossesses only minimum stability, a perforated plate is used as a support. The flowing-through of liquid throughthe filtering surface and support structure causes the pressure loss.The differential pressure of the strainer is calculated individually for the volume flow according to the effectiveworking data in a pipeline. KOSSIK dimensions the strainers with computer-supported design on the principle ofthe orifice calculation. Using each of the flow speeds in the calculation cross-section, we then determine:

The throttling effect through the area of the cross-section reduction as opening ratio at the clamping ring.

The resistance from the relative free space area of the perforated plate / cloth combination of the cone jacket. The loss due to the shape of the strainer bottom as a combination of the flow in the ring space around thebottom and the shape resistance when liquid flows through or around the strainer end plate.

These figures are then used to determine the drag coefficient per nominal pipe size, pressure rate and fineness.

Bursting safety

As proof of the bursting safety, a strength calculation is carried out for the supporting structure at the shell, thebottom and for the clamping ring. Based on the fundamentals of the AD Merkblatt and the TRD, the perforatedplate is calculated as a pressure loaded wall with non-reinforced round cut-outs acting on each other. For eachstrainer detail, the calculation is applied according to the position in each instance as conical shell, as level bottomor at the clamping ring as bending torque. The expert's inspection of the strength design, preliminary inspection of

the construction and a design inspection and acceptance inspection including the material documentation ispossible.

Extra equipment features and special shapes are available in diverse versions.

Opposite installation position of the strainers with oncoming flow from the outside is available. With respect tothe maintenance of strength, calculatory proof and, in some cases, additional reinforcement may be required.

Conical strainers with drainage intermediate layer cloth provide improved flow distribution in micro-cloths oncoarse supporting perforated plates and offer reduced pressure loss are especially suitable for use inpermanent operation.

External protective wire cloth with coarse mesh size and sturdy wires protective the micro-cloth fromdestruction due to flutter and stabilise in case of return flow.

Pointed cone strainers provide the highest bursting safety and larger filtration surface.

Flat Pointed cone strainers and disc strainers offer the shortest installation lengths. Double cone strainers are manufactured with larger filtering surfaces together with the shortest overall

lengths. Special materials, e.g. low-temperature steels, heat-resistant steels as well as 1.4539, Hastelloy and Monel

can be supplied.



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3

h

b

Clamping Ring

d

a

Flat 20 x 3

Marking

Perf. Plate

Wire Mesh

c

DN 50 65 80 100 125 150 200 250 300 350 400 500 600

PN 10a PN 16PN 25PN 40

dbhc

Weight kg 0,2 0,3 0,4 0,5 0,7 0,9 1,5 2,2 4,4 5,7 7,5 10,4 14,4

Perforated plates (DIN 24041)

Hole Diameter w (mm) 3,1 4,0 5,0 6,0Hexagon Pitch t (mm) 4,5 6,0 8,0 8,0Plate Thickness s (mm) punched 1.0 to 3.0 mm thickFree screening surface (%) 43,1 40,0 35,4 51,0

Wire cloth (DIN 4189)

Open Mesh Size w (mm) 0,1 0,25 0,5 1,0 1,5 2,0Wire Diameter d (mm) 0,063 0,1 0,2 0,5 0,5 0,9Free screening surface (%) 38,0 51,0 51,0 44,0 56,0 48,0



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3

h

b

Clamping Ring

d

a

Flat 20 x 3

Marking

Perf. Plate

Wire Mesh

c

NPS 2 2 3 4 5 6 8 10 12 14 16 18 20 24 a 150-900 # d* b

Hc

Weight kg 0,2 0,4 0,4 0,5 0,7 0,9 1,4 2,0 4,0 4,8 6,3 8,1 9,8 11


Hole Diameter w (mm) 3,1 4,0 5,0 6,0Hexagon Pitch t (mm) 4,5 6,0 8,0 8,0Plate thickness s (mm) punched 1.0 to 3.0 mm thickFree screening surface (%) 43,1 40,0 35,4 51,0





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3

h

b

Clamping Ring

d

a

Marking

Flat 20 x 3

Wire Mesh

Perf. Plate

c

DIN ASADN 25 32 40 NPS 1 1 1

aPN 10PN 25PN 16PN 40

150 lbs a 300 lbs

400 lbs600 lbs

d b

hc

d b

hc

Weight kg 0,1 0,1 0,2 Weight kg 0,1 0,1 0,2







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Protective strainers of the series T serve the protection of plant components, especially pumps and compressors,measuring and controlling instruments. As start-up strainers, they filter assembly work soiling when the plant isput into service. Their main task, however, is performed in continuous operation as straining protection againstprocess-specific solid material impairment and against corrosion products. Standard T-strainers are filters in thevestment of pipeline parts.

Construction

An equal T-piece serves as the housing basic body. The standard version is the seamless T-piece in compliancewith DIN 2615 and ANSI B 16.9. In accordance with the requirements from pipe classes, welded types ofconstruction with identical dimensions are also used.

The round steel guide rails for the strainer insert are welded into the branch piece and the welding neck flange forthe service opening is attached. The strainer insert can be dismantled in order to be replaced or cleaned or canalso discarded following the commissioning procedure. The service blind flange closes off the housing.

KOSSIK protective strainers combine the strainer insert and housing individually and therefore guaranteebypass-free, efficient filtration.

The wall thickness offset and the forming tolerances of the T basic body are evened out by means of build-upwelding and the guide profiles welded sealed-tight. Resilient contact pressure of the strainer insert in the roundbar rails and a turned end plate, which sits with precise fit in the flange internal diameter, support the efficient andsafe operating function. It is generally our basis to ensure that no air gap shows greater tolerances than the openstrainer mesh size.

Design

The selection of the suitable wire cloth is carried out according to the particle size from which the down-streamplant components are to be protected. This straining cloth is supported by a perforated plate and the combinationof both parts is encased in flat iron frame. The strainer insert is closed off by an end plate made of sheet metal. Asfiltering surface, the area in the entire branch is used, which evenly distributes the flow in this cross-section andtherefore provides a more advantageous drag coefficient of = 3-5. Operating pressure losses in clean state and50% soiled as well as the strength calculation, the bursting safety are determined according to the specification ofthe working data of Kossik on a computer supported basis.





KOSSIK - Filtertechnik GmbHSeries T G010

Protective Strainers


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As a supplement to the standard version, enlarged straining surfaces, oncoming flow from outside, reinforcementribs as well as protection and drainage cloth can be supplied. For operating conditions in the maximum limitrange, we recommend equipping a protective strainer, like a conventional filter, with a differential pressuremonitoring system. The wall thickness of the T-pieces is specified by the connecting pipeline. The protectivestrainer wall from STD to XXS in accordance with ANSI B 36.10 or DIN is turned-out internally to the connectionthickness as required. Upon request, KOSSIKcalculates the reinforcement area at the branch in accordance withAD Merkblatt, TRD or ASME Code according to the operating data in the system. The dimensioning of thepipeline connecting wall is carried out by our customers while taking into account the working data and theadditional applications of stress. Pipe classes and plant requisitions summarise these results and also specify,among others, the pressure rate and the flange facing at the connection to the branch service opening.

Materials

Application DIN-Standard: for Power Stations: acc. to ANSI:

T-pieceFlange / Blind FlangeBolt / ScrewHexagon NutFlat GasketRound / Flat SteelPerforated PlateWire Cloth

St 35.8 IC 22.8

5.65-2

mineral fibre

St 35.8 III (15Mo3)C 22.8 (15Mo3)

24CrMo5Ck 35

graphite / (bracing plate)

ASTM A 234 WPBASTM A 105

ASTM A 193-B7ASTM A 194-2H

mineral fibre

S 235 JRG 2 (RSt 37.2)St 12.03 / StW 221.4401 / 1.4301

These protective strainers are also available made completely of stainless steel 1.4541 or 1.4571 with strainerinsert made of 1.4571 perforated plate and 1.4401 cloth. Combinations consisting of heat-resistant materialsmade of 13CrMo44 / 12CrMo195 or, for low temperature use, made of P355NL1 or 10Ni14 are also included inthe delivery programme.

Delivery conditions

The series of the standard dimensions made of the DIN materials are delivered by our company according to ADMerkblatt and TRR 100. Based on the DruckbehV (German pressure vessel code), fifth section, "Pipelines", theseprotective strainers series T must be classified. The testing scope results from this directive and from the orderspecifications.As a specialised welding company with a permit in accordance with AD-HP0, KOSSIKsupplies the T-strainerhousing, manufactured under welding supervision within the framework of applicable procedural inspections. The

inspection prior to commissioning by the specialist or by plant-independent experts (TV) is, like thedocumentation of the input material, also included. The non-destructive welded seam inspections in accordancewith AD Merkblatt, the pressure test as well as a prototype test with respect to drawing-justified version are, ifrequested, part of our delivery conditions.

Extra equipment

Emptying pipe union or rinsing nozzle in the service blind flange; equipped with welded end, with flange orwith shutoff device.

Connecting pipe unions for the differential pressure monitoring system, additionally also equipped withmeasuring line, valve block and pressure gauge.

Swivel device or hinge as well as handles or lifting eyelets on the blind flange of the serviceopening.

Please also note our delivery option of T-strainers as measuring system protective strainers in accordance withGasHlVo or in accordance with DIN 2470 Part 2 for natural gas systems (600 lbs).

KOSSIK - Filtertechnik GmbHSeries T G 011



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l

d

h

A

DN 80 100 125 150 200 250 300 350 400 500 600 d

I

h

PN 10PN 16PN 25PN 40

A

Weightkg


NPS 3 4 5 6 8 10 12 14 16 20 24 d

I

h150 lbs300 lbs600 lbs

A

Weightkg

150 lbs300 lbs600 lbs




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l

h

A

d

DN 80 100 125 150 200 250 300 350 400 500 600 d 88,9 114,3 139,7 168,3 219,1 273 323,9 355,6 406,4 508 610

lPN 10PN 16PN 25PN 40

h


A

Weightkg


NPS 3 4 5 6 8 10 12 14 16 20 24 d 88,9 114,3 139,7 168,3 219,1 273 323,9 355,6 406,4 508 610

l150 lbs300 lbs600 lbs

h150 lbs300 lbs600 lbs

A

Weightkg





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Protective strainers of the series Y refer to the welded models of the well-known Y-type dirt traps of castingmaterial. They serve the general protection of plant components against soiling and combine the positivecharacteristics of the Y-seat design with the advantages of the welded construction. Space-saving strainerinstallation, optimum emptying and rinsing operations even with vertical installation are the advantages of thisform of construction. Identical materials, wall thicknesses and identical limits of use, delivery and acceptanceconditions as well as the connecting pipe are considered to be the advantages of this welded construction.

Construction

A branch is welded into a base pipe at an angle of 60. This Y-branch pipe union then receives the strainer insertin round profile guide rails. As a standard equipment feature, seamless pipes are used for the housing. Around

the cut out weakening section, the pipe-shaped and disc-shaped reinforcement in the jointly carrying area is builtup by means of a thicker pipe wall plate. Through the flange / blind flange service opening at the branch, thestrainer is inserted and can be dismantled and cleaned as well. Proper fitting of the insert in the housing is, aswith the T-strainer, the essential design and manufacturing detail.

Kossik protective strainers combine the strainer insert and housing individually and therefore guarantee bypass-free, efficient filtration.

The manufacturing tolerances, the edge offset in the area of the cut out reinforcement and various strainer insertlengths are compensated by the guide profiles. The round bars are welded sealed-tight on the circumference.Resilient contact pressure of the strainer insert and a precisely fitting turned end plate completely seal off alongthe circumference. Kossik guarantees that there is no air gap greater than the straining mesh size.

Design

The perforated-plate-supported filtering strainer is equipped with wire cloth in the required mesh size. The strainerinsert is encased in a flat iron frame and closes off with a turned end plate made of sheet metal. The filteringsurface is positioned at an angle of inclination of 120 to the main flow axis. Related to the large screening surface

almost twice the surface of the T-strainer the discharge of soiled material into the branch, results in a veryadvantageous pressure loss during continuous operation. An extremely advantageous service life is achieved dueto the constant free-rinsing of the main flow zone, due to the large dirt collection volume in the long branch anddue to the large filter surface.





Operating pressure losses at the clean strainer, with 50% soiling, as well as the permissible maximum bursting

pressure is calculated by Kossik on a computer-supported basis for each requirement according the specificationsof the working conditions. The use of differential pressure monitoring systems as well as the additional equippingof the strainers with drainage cloths or protective cloths is possible.

KOSSIK - Filtertechnik GmbHSeries Y G 020



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The cut out at the branch zone is calculated in accordance with TRD 301 as well as with AD Merkblatt B9. Thedimensioning of the pipeline connecting wall is carried out by our customers while taking into account theoperating data and the additional application of load. Pipe classes and plant requisitions summarise these resultsand specify the material, the pressure rate and the flanges faces at the connection and at the branch serviceopening.The overall length of fittings in accordance with DIN 3202 Part 1 straight with flanged ends series F1 and weldedends in accordance with Part 2 series S7 is the dimensional basis for the Y-strainers.For these types of design, it is important to pay attention to the incoming flow direction.

Materials


PipeFlange / Blind FlangeBolt / ScrewHexagon NutFlat GasketRound / Flat SteelPerforated PlateWire Cloth

St 35.8 IC 22.8

5.65-2

mineral fibre

St 35.8 III (15Mo3)C 22.8 (15Mo3)

24CrMo5Ck 35

graphite / (bracing plate)

ASTM A 106 Gr. BASTM A 105

ASTM A 193-B7ASTM A 194-2H

mineral fibre

S 235 JRG 2 (RSt 37.2)St 12.03 / StW 221.4401 / 1.4301

These protective strainers are also available made completely of stainless steel in accordance with AD-W2 andDIN 17440 with strainer insert made of 1.4571 perforated plate and 1.4401 cloth. Combinations consisting of heat-resistant materials made of 13CrMo44 / 12CrMo195 or, for low temperature use, made of P355NL1 or 10Ni14 arealso included in the delivery programme.

Delivery conditions

The series of the standard dimensions made of the DIN materials are delivered by our company according to ADMerkblatt and TRR 100. Based on the DruckbehV (German pressure vessel code), fifth section, "Pipelines", theseprotective strainers series Y must be classified. The testing scope results from this directive and from the orderspecifications.

As a specialised welding company with a permit in accordance with AD-HP0, Kossik supplies the Y-strainerhousing, manufactured under welding supervision within the framework of applicable procedural inspections. Theinspection prior to commissioning by the specialist or by plant-independent experts (TV) is, like thedocumentation of the input material, also included. The non-destructive welded seam inspections in accordancewith AD Merkblatt, the pressure test as well as a prototype test with respect to drawing-justified version are, ifrequested, part of our delivery conditions.

Extra equipment

Rinsing pipe unions in the service blind flange or drain nozzles are available. They are provided with welded end,flange pipe unions and shutoff device or with muff and plug. For the differential pressure monitoring system, thepressure gauge, valve block, measuring lines or also only the connecting muffs are available. Swivel device or

hinge as well as handles or lifting eyelets on the blind flange of the service opening are recommended for largernominal diameters.




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l

b

d

h A

DN 80 100 125 150 200 250 300 350 400 500 600 d

Ihb

88,9 114,3 139,7 168,3 219,1 273 323,9 355,6 406,4 508 609,6

A

Weightkg


NPS 3 4 5 6 8 10 12 14 16 20 24 d 88,9 114,3 139,7 168,3 219,1 273 323,9 355,6 406,4 508 610


hbA

Weightkg





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l

b

d

h A

DN 80 100 125 150 200 250 300 350 400 500 600 d

Ihb

88,9 114,3 139,7 168,3 219,1 273 323,9 355,6 406,4 508 609,6

A

Weightkg


1 for PN 25 only

NPS 3 4 5 6 8 10 12 14 16 20 24 d 88,9 114,3 139,7 168,3 219,1 273 323,9 355,6 406,4 508 610


h

b150 lbs300 lbs600 lbs

A

Weightkg





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This Y-series with cone strainer insert offers the largest filter surface among the slanted-seat pipeline protectivestrainers. The large strainer insert can be used not only for clean protection but also as a filter for constantaccumulation of dirt during continuous operation. For DN > 125, this Y-strainer is the low-cost alternative to the Y-type dirt trap for casting material. Especially the pipeline-identical materials, the wall thicknesses as well as thesame delivery and acceptance inspection conditions, as on the following pipe, are an important advantage.

Construction

The branch is welded into the base pipe at an angle of 45. The conical strainer insert is then fitted in this pipe

union. The use of seamless pipes, the calculation in the cut out zone and the service opening with flange / blindflange is defined as a standard equipment feature in the dimension sheets. The turned seat of the strainer in themounting plate, the resilient contact pressure of the insert and the completely welded version with filter wire clothand supporting perforated plate guarantee the high level of operating safety.

The overall length of the fittings in accordance with DIN 3202 Part 1 straight with flanged ends series F1 and withwelded end in accordance with Part 2 series S7 is the dimensional basis for these Y-strainers.

Design

For optimum utilisation of the large filter surface and usage of the high strength of the strainer, these strainersshould be designed on an individual basis. The strainer cone insert possesses a freely flow-throughscreening surface that is always larger than 3 times the connecting pipe cross-section.This can be used,

e.g. to optimise a compressor on the suction side with minimum pressure losses. Performance reserves can alsobe maintained in the event of a feared large accumulation of dirt. Guaranteed filtering rates with fineness values ofless than 200 m can be achieved due to the perfectly fitting turned seat of the filtering insert. In addition, theround shape of the strainer provides high strength and therefore high permissible maximum differential pressure.According to the specification of the operating parameters, Kossik calculates on a computer-supported basis thepressure drops at the clean strainer and at 50% soiling as well as the permissible maximum bursting pressurewith respect to strength.


Hole Diameter w (mm) 3,1 4,0 5,0 6,0

Hexagon Pitch t (mm) 4,5 6,0 8,0 8,0Plate Thickness s (mm) punched 1.0 to 3.0 mm thickFree screening surface (%) 43,1 40,0 35,4 51,0



The cut out in the branch zone of the housing is calculated in accordance with TRD 301 as well as with ADMerkblatt B9. The connecting wall thickness is defined by the customer. Material, pressure rate and flange face isspecified in the pipe class or in a requisition.


Protective Strainerswith Conical Strainer Insert


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Materials


PipeFlange / Blind FlangeBolt / Screw

Hexagon NutFlat GasketRound / Flat SteelPerforated PlateWire Cloth

St 35.8 IC 22.8

5.6

5-2mineral fibre

St 35.8 III (15Mo3)C 22.8 (15Mo3)

24CrMo5

Ck 35graphite / (bracing plate)

ASTM A 106 Gr. BASTM A 105

ASTM A 193-B7

ASTM A 194-2Hmineral fibreS 235 JRG 2 (RSt 37.2)

St 12.03 / StW 221.4401 / 1.4301

These protective strainers are also available made completely of stainless steel with strainer insert made of1.4571 perforated plate and 1.4401 cloth. Combinations consisting of heat-resistant materials made of 13CrMo44

/ 12CrMo195 or, for low temperature use, made of P355NL1 or 10Ni14 are also included in the deliveryprogramme.

Delivery conditions

The series of the standard dimensions made of the DIN materials are delivered by our company according to ADMerkblatt and TRR 100. Based on the DruckbehV (German pressure vessel code), fifth section, "Pipelines", theseprotective strainers series Y must be classified. The testing scope results from this directive and from the orderspecifications.As a specialised welding company with a permit in accordance with AD-HP0, Kossik supplies the Y-strainerhousing, manufactured under welding supervision within the framework of applicable procedural inspections. Theinspection prior to commissioning by the specialist or by plant-independent experts (TV) is, like thedocumentation of the input material, also included. The non-destructive welded seam inspections in accordancewith AD Merkblatt, the pressure test as well as a prototype test with respect to drawing-justified version are, ifrequested, part of our delivery conditions.

Extra equipment

Rinsing pipe unions in the service blind flange or drain nozzle are available. They are provided with welded end,flange pipe unions and shutoff device or with muff and plug. For the differential pressure monitoring system, thepressure gauge, valve block, measuring lines or also only the connecting muffs are available. Swivel device orhinge as well as handles or lifting eyelets on the blind flange of the service opening are recommended for largernominal diameters.




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l

b

d

A

h

DN 150 200 250 300 350 400 500 600 d

lhb

168,3 219,1 273 323,9 355,6 406,4 508 610

A

Weightkg

PN 10PN 16PN 25

PN 40

NPS 6 8 10 12 14 16 20 24 d 168,3 219,1 273 323,9 355,6 406,4 508 610


hb

A

Weightkg





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l

b

h

A

d

DN 150 200 250 300 350 400 500 600 d

lhb

168,3 219,1 273 323,9 355,6 406,4 508 610

A

Weightkg

PN 10PN 16PN 25

PN 40

NPS 6 8 10 12 14 16 20 24 d 168,3 219,1 273 323,9 355,6 406,4 508 610

l 150 lbs300 lbs

hb 150 lbs

300 lbs

AWeight

kg150 lbs300 lbs




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These protective strainers with cylindrical strainer insert are mainly used in power stations. The design allows it tobe planned for use in a line instead of a 90-elbow. Even the retrofitting work in case of power stationreconstruction, extensions or modernisation is easily carried out with this model. The installation position, thespace-saving service room as well as a welded construction that meets all power station requirements is the basisof this version. Construction, strength calculation, certificate documentation, the welding qualification and theexpert non-destructive inspections and acceptance tests are part of the Kossik range of services.

Construction

A cylindrical strainer is inserted in a housing consisting of a T-piece with reduced branch, a concentric reductionpiece and a flange / blind flange service opening. Due to the axial inlet side, the oncoming impulse onto thestraining surface is prevented. Medium flows evenly through the straining surface without any cross-sectionnarrowing in the ring space or during the curve-flow operation. The strainer can be optimally sealed, fitted in fromcover side, and maintain the desired separating rate without any gaps. Manufacturing tolerances of the butt-weld-fittings are compensated by chip-removal machining and individual adaptation of the strainer to the housing.Ideally, the strength requirements, i.e. the operating safety of the strainer cylinder can be proved and increased asrequired.

A free screening surface, 5 times larger than the cross-section of the inlet pipe union, offers minimumpressure loss together with high bursting safety at the strainer.

The simple structure of the housing, combined simply from standard fittings and flanges, is dependable, reliableand without any malfunction-conducive details. Robust, with a high degree of availability, an efficient form offiltration in the steam and condensate flow is guaranteed.

Design

Low pressure drop, long service life, high availability and a sturdy construction for the operating conditions inpower stations are the reference data of this design. No expensive flow guidance is required inside the housing.An emphasis is placed on the importance of a simplified design principle with minimum resistance values. Even athigh flow speeds, this model guarantees minimum pressure loss in the clean state and therefore long service live

until soiled. The fine strainer cloth of the required mesh size is supported by a perforated plate. It can besupplemented with a drainage intermediate cloth for flow improvement and is often protected with a protectivecloth cover. This type of internal cloth protection prevents "fluttering" or crack formation by the collision with largeparts.

The supporting plate is tested with respect to establishing proof of bursting safety in accordance with calculationregulations of TRD 301 and AD Merkblatt. As a cylindrical shell subjected to internal over-pressure withweakening effect due to reciprocally influencing cut-outs, the strainer is calculated and an inspection-suitableproof of strength record updated accordingly.

For these strainers, the standard value according to the dimension tables only refers to the design shape and theconnection geometry. The high requirements specified for the operating safety and the reduction of costs almostalways result in an individual design for these strainers.

KOSSIK - Filtertechnik GmbHSeries E G 040

Rectangular StrainerSteam Strainer in Water-Steam Circuit


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Delivery conditions

As a pipeline part in accordance with TRD or within the scope of validity of the DruckbehV (German pressurevessel code), fifth section, the calculator and constructive preliminary inspection by plant-independent experts isprovided.

Approved semi-finished products from tested materials are used exclusively:

T-piece seamless DIN 2615 and reduction piece DIN 2616 or basic body welded together from pipes made of St35.8 l * St 35.8 III * 15 Mo 3 in accordance with the delivery conditions DIN 17175 & AD-W12 & TRD 102/103.

Welding neck flange and blind flange in accordance with DIN made ofC 22.8 * 15 Mo 3in accordance withVdTV-Wbl 350/3 & AD-W9 & TRD 107.

As gasket, flat of graphite with bracing plate in tongue-and-groove flange faces or smooth as spiral-woundedgaskets with internal ring and external ring or grooved gaskets with covering layer are used.

Bolts and nuts in accordance with DIN 2510 Form L/NF in accordance with AD-W7 made of 24CrMo5 / Ck35 *21CrMoV57 / 24CrMo5 are used.

As a specialised welding company with a permit in accordance with AD-HP0, Kossik supplies the housing,manufactured under welding supervision within the framework of applicable procedural tests. The tests prior tocommissioning by the expert (TV) are obligatory:

qualification inspection of the input materials verification of applicable qualifications dimensional check and inspection for drawing-justifiable version non destructive examinations of the welded seams as radiographic test, surface crack test, ultrasonic test as well as leak test or water pressure test

The results of the tests are recorded and, together with the final documentation, are parts of the deliveryconditions.

Extra equipment

Rinsing pipe unions in the service blind flange or drain nozzles are available. They are provided with welded end,flange pipe unions and shutoff device or with muff and plug. For the differential pressure monitoring system, thepressure gauge, valve block, measuring lines or also only the connecting muffs are available. Swivel device orhinge as well as handles or lifting eyelets on the blind flange of the service opening are recommended for largernominal diameters.




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d

d

l

b

h

D

A

DN 100 125 150 200 250 300 350 400 d

DHb

114,3 139,7 168,3 219,1 273 323,9 355,6 406,4


A

WeightKg

PN 10PN 16PN 25

PN 40








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b

l

h

d

A

D

d

DN 100 125 150 200 250 300 350 400

d D

114,3168,3

139,7219,1

168,3273

219,1323,9

273355,6

323,9406,4

355,6508

406,4609,6

hPN 10PN 16PN 25PN 40

bPN 10PN 16PN 25PN 40


A

Weightkg





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The blind disk is used to shut off partial segments of pipelines for pressure tests. In order to prevent the activationof safety devices or to limit the volume of pressure spaces, a blind disk is clamped between two flanges.Preferably, the standardised spectacle-blank-design is used for the possibility to shut off or open the flowsectional area. Both parts have the same thickness and are designed with gasket surfaces to fit between twoclamping flanges. The separate shut off blank is installed during the pressure test or, as a spacer for continuousoperation; the ring-type is mounted.

Construction

The Kossik dimension sheets show the standard suitable for almost all pressure rates and pipe classes inaccordance with DIN and ANSI standards. The disk diameters are defined by the gasket faces or externally by thescrew-hole circle as a centring system. The internal diameters depend on the wall thickness or flange internaldimension. The webs are dimensioned one-piece for small nominal pipe sizes, fitting between two screw bolts.For large NPS, two-piece webs are provided with a gap for a screw bolt. This can also be a helpful construction asa pivotal point when modifying the blinds.

Production

Ring and round plate of the spectacle blanks have been turned on all sides. The gasket surfaces correspond inthe machining degree, shape and fineness to the opposite faces of the clamping flanges. The connecting webswith spectacle-type blanks or the identification straps are made from flat iron and welded into place. The label isstamped or engraved on the webs or straps. DN, PN, sealing surface shape, material, batch number andmanufacturer symbol is the standard signature; customer-specific identification numbers are often added.

Materials and delivery conditions

As input material for the blanks, sheet metal burned out to ring and round plate is used. Small diameters are cutfrom round bars. The material is specified according to pipe classes and certified according to AD Merkblatt, TRDand DIN or according to ANSI or ASME code. Boiler plate P 265 GH (H II) and stainless steel 1.4571 is mainly ourstandard material. Almost all other sheet-metal materials can be use as required.The labelling of the spectacle blinds by stamping ensures the identifiably. This provides the option of being able to

prepare certificates in accordance with EN 10204-3.1B or 3.1A-TV with the acceptance inspection according tocustomer-specific delivery conditions. Examples include the delivery conditions according to acid gas regulationswith analysis restriction, ultrasonic test, proof of notched bar impact work, and determination of hardness values.Final acceptance inspection and expert stamping approval are obligatory for this application.

Extra service

With PC-supported calculation methods, according to many different domestic and foreign regulations, but mostlyaccording to AD-B5, the strength of the blinds is proved as required. The thickness of the round disk is calculatedfor the inspection or pressure test conditions with the rings being designed as spacers in the same thickness. Fornatural gas lines in accordance with DIN 2470 Part 2, GasHLVo, with increased safety factors, the spectacle-type

blanks are supplied. In addition to the facing in accordance with DIN 2526 and ANSI B 16.5, the blanks PN 100with two-sided RJ groove or tongue in accordance with 600# is made specifically for natural gas operations.At its factory, Kossik manufactures the additional equipping of the spectacle blanks with handles and liftingeyelets as well as the variant with throttle shutter drilled holes, plated or cased plates, customised according tocustomer specifications.

KOSSIK - Filtertechnik GmbHSeries H 100

Spectacle Blanks


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Koik - Filtertechnik GmbHSerie H101

sealing surface in accordance with DIN


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sealing surface in accordance with ANSI


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If the standard fittings do not meet the fluidic requirements or wherever constructional conditions do not permittheir being used, welded special fittings are planned for use in the pipelines.Y-branches, lateral elbow branches, breeches pipes and cross piecesserve the improvement of flow andpermit optimised line guidance systems. The production of these fittings made piping during assembly at theconstruction site is gladly avoided. Material with increased wall thickness is required, an expensive arrangementof the welding edge preparation and the welding in forced position as well as an increased testing expenditure areeasier to realise in specialised welding company. The production of these special fittings in the workshopoptimises the assembly work, promotes the quality standard and reduces the time factor at the construction siteconsiderably.

Construction

The KOSSIK dimension sheets for the series F show, as a plant standard, a selection of special designed fittingswith standardised dimensions. Basic pipe and leg lengths, nominal widths and angles of the branches, radiusesand wall thicknesses represent only a general selection. Generally, these are dimension recommendations for theplanning phase. They refer to minimum dimensions which are supplemented by the requirements of the spatialarrangement. In addition, the process data, the pressure rate and materials mostly have an effect on theconstruction in the form of a pipe class specification. The dimensions are combined from the nominal widths forseamless and welded pipes and elbows in accordance with DIN and ANSI standards. Production drawings andEDP-supported calculations are prepared in accordance with AD Merkblatt, TRD 301 or also according to foreignregulations.

The main dimensions are specified with the minimum dimensions in the tables; the wall thicknesses arementioned in the dimension tables.sA = wall thickness in the reinforcement zone around the cut-outs = connection pipe wall thickness, order wall thickness

Production

Standardised dimension groups as shown in the KOSSIK dimension sheets of the series F make their use easierfor the engineer during the planning phase. The prefabrication guarantees sensible assembly at the constructionsite. The wall thickness, diameter and connection with welded joint according standards are made suitably fittingthe assembly dimensions. The fittings are welded together from input material, with guaranteed propertiesaccording to official regulations, certified in accordance with EN 10204.As a specialised welding company with a permit in accordance with AD-HP0, KOSSIK supplies from its ownworkshop.

The special shaped pieces are made by tested welders within the framework of applicable proceduralinspections in accordance with DIN EN ISO 9001.

As semi-finished products, pipes are used, seamless or welded in accordance with DIN 2448, DIN 2462 and DIN2463 as well as DIN 17173 ff. and pipes made of ASTM materials in acc. with ANSI B 36.10. Also elbows,seamless, single-seam or made of half shells, welded in accordance with DIN 2605 of the designs 2.3 and 5 serveas input material.

The minimum length at the basic pipe and at the branches are calculated fromthe jointly carrying lengths for the pipe-shaped reinforcement plus the wallthickness reduction below 15 onto the connection dimension and the welded

KOSSIK - Filtertechnik GmbHWelded Fittings F100

Special - Design


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Seamless and welded steel pipes, cryogenic steel, for low-temperature useDIN 17173 and DIN 17174 TTSt 35 V / N 10 Ni 14ASTM, ANSI or APIRegulations

ASTM A 333 Gr. 1 ASTM A 333 Gr. 3

Seamless and welded steel pipes, heat-resisting, C-steel for high temperaturesDIN 17175 St 35.8 I / III 15 Mo 3 13 CrMo 44 10 CrMo 910ASTM

Regulations

ASTM A 106

Gr. B

A 335 P 1 A 335 P 12 A 335 P 22

Seamless and welded steel pipes, made of stainless steelsDIN 17440 / 17457 and17458

1.4541 1.4571

ASTM or API Regulations ASTM A 304 ASTM A 316 ASTM A 321

Acceptance inspection

The welding supervision division, the specialised welding engineer as well as the quality management division

guarantee the standard. The constant monitoring of production operations by non-destructive tests does notreplace a leak test, but since a system pressure test is carried out on an obligatory base after the piece has beenwelded into the pipeline, the more expensive water pressure test is performed on the special fitting only uponspecial request. Edge zone ultrasonic tests and the search for cracks by means of the magnetic powder test orthe dye penetration test are tests performed by the plant-independent expert that are recorded in reports andcontribute to the quality documentation. Even during the production phase, for example, a dimensional check iscarried out on the welding seam preparation. A surface crack inspection of the root weld is carried out uponrequest. The component inspection consisting of the dimensional check and inspection with respect to drawing-

justified version forms the final stage as prototype test prior to delivery.

Documentation

The production drawing, mainly true-to-scale as a CAD drawing, connected with parts lists, design data andwelding details, forms the basis. Together with the calculation, the material products from the input material, thereports on non-destructive testing during and after the production operations and the construction and pressuresample paper, this forms the documentation. Depending on the requirement in each instance, this can then serveas an acceptance certificate together with the TV or other testing institute.

Extra equipment

Testing and measuring pipe nozzles, emptying and air-removal devices as welded-in pipe unions must beincluded in the workshop production process on a low-cost basis.Consoles, raised pads or saddle mountings must also be carried out inexpensively as workshop welding jobs andmake a special shaped piece into an assembly-friendly unit.Generally, all combinations with standard fittings on the connection or with connecting flanges can bemanufactured. We deliver right up to prefabricated pipelines according to isometric drawings.


Special - Design


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Special - Design


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KOSSIK - Filtertechnik GmbHfor

liquid and gaseous media

Protection of high- quality components

Perfect planning, calculation and precise manufacturing

We manufacture protective strainers fromDN 80 to DN 600


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KOSSIK - Filtertechnik GmbHConical Strainer-

special design

Titan Conical Strainer


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KOSSIK - Filtertechnik GmbHFinned Tube forcooling systems

We manufactureprotective strainer forresin residues from

DN 80 to DN 600

We manufactureconical strainer in

standard- and specialdesign


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KOSSIK - Filtertechnik GmbHYour partner

for piping filters

Spectacle Blanks IN-Line-Filter

Double-Cone Strainer Double-Cone Strainer Double-Cone Strainer

Protective Strainer Strainer Insert Protective Strainer

Special Conical Strainer Pointed Conical Strainer Standard Conical Strainer

Cylindrical Strainer


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for piping filters

Protective Strainer series T Protective Strainer Protective Strainer

Special Conical Strainer Special Conical Strainer Special Conical Strainer

Special Conical Strainer Piping with heat tracing Special filter

Protective StrainerFrom DN80 till DN600

Protective Strainer series Y Protective Strainer series T


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for piping filters

Protective Strainer Protective Strainer series Y

Finned Tube for cooling systems Protective Strainer

Protective Strainer series Y Conical Strainer

Protective Strainer Protective Strainer


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for piping filters

S ecial Conical StrainerProtective Strainer series T

Cylindrical Strainer Protective Strainer series T

Protective Strainer Protective Strainer


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for piping filters

Double-Cone Strainer

Protective Strainer series YConical Strainer

Protective Strainer series T

Protective StrainerACHEMA


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for piping filters

Bunching of competence and know how enables simultaneously efficientand flexible working.

Keeping persistent dialogue with our customers, we achieve productimprovements and realise them quick and precise.

Development and CalculationsEngineering and Manufacturing

Pressure- vessel and plant constructionService

How to get to us:Motorway A3 in Wrzburg direction

Departure HanauDistrict 63110 Rodgau, Daimlerstrae 15-17


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Contact:

Kossik Filtertechnik GmbH

Daimlerstrasse 15-17

D-63110 Rodgau

Phone: +49-6106-77308-0

Fax: +49-6106-77308-20

E-mail: [email protected]

www.kossik.de


for piping filters

Documents

Katalog Kossik EnglischV2 2