KLINGERSIL® C-4265

Gasket for liquids and gaseous mediaat lower pressures and temperatures and

low bolt loads. Good resistance to oils, hydrocarbons,

refrigerants and other chemicals.

BasisMineral Fibres bonded with NBR.

Typical ApplicationsSuitable for a wide range of applica-tions including oils, solvents, steamand gases. Excellent conformity withthe flanges at low surface loads.Max. temperatures 250°C and max.pressure 40 bar.(The maximum temperatures andpressures are dependent on thethickness of gasket material, flangeconditions, bolt loading and serviceconditions. Since the ability of thegasket material to resist pressure isdependent on the temperature themaximum values do not apply simul-taneously.)

*Gaskets according to DIN 2690 are only standardised up to PN 40 and for a thickness of 2 mm.

Klinger Hot and Cold CompressionTest MethodThe Klinger Hot Compression Testwas developed by Klinger as amethod to test the load bearing capa-bilities of gasket materials under hotand cold conditions.

In contrast to the BS 7531 and DIN 52913 tests, the KlingerCompression test maintains a constant gasket stress throughout theentire test. This subjects the gasket tomore severe conditions.

The thickness decrease is mea-sured at an ambient temperature of23°C after applying the gasket load.This simulates assembly.

Temperatures up to 300°C arethen applied and the additionalthickness decrease is measured.Thissimulates the first start up phase.

The many and varied demandsmade on gasketsThe successful operation of a gasketdepends upon a multiplicity of factors.Many who use static gaskets believethat the values quoted for maximumadmissible temperature and maximumoperating pressure are inherentproperties or characteristics of gasketsand gasket materials.

Unfortunately, this is not the case.The maximum temperatures and pres-sures at which gaskets may be used areinfluenced by a large number of factors.

So why does Klinger providepT diagrams?For the reasons given the pT diagramis not infallible: it serves as a roughguide for the end user who often has

If your operating temperaturesand pressures fall within this field, atechnical examination is normallyunnecessary.

If your operating temperaturesand pressures are within this field,a technical examination isrecommended.

If your operating temperaturesand pressures are within this “open“field, a technical examination isalways necessary.

Therefore a definite statement ofthese values for gasket material is notpossible.

only the operating temperatures andpressures to go on.

Additional stresses such asgreatly fluctuating load may signi-ficantly affect whether a gasket issuitable for the application.Resistance to media must betaken into account in every case.

The fields of decision

Distribuidor en Chile: MARCO INDUSTRIAL SPA www.marco.cl (+562) 2782-4400

Typical values for 1.0 mm thickness

SurfacesThe standard surface finish of thematerial is such that the surface hasan extremely low adhesion. Onrequest, graphite facings and othersurface finishes on one or both sidesare also available.

Function and durabilityThe performance and life of KLINGERgaskets depend in large measure onproper storage and fitting, factorsbeyond the manufacturer’s control.We can, however, vouch for theexcellent quality of our products.

With this in mind, please alsoobserve our installation instructions.

KLINGERSIL® C-4265Technical data

minthickness decrease at 23°Cthickness decrease at 200°Coil IRM 903: 5 h/150°Cfuel B: 5 h/23°C

Compressibility ASTM F 36 JRecovery ASTM F 36 JKlinger cold/hot compression, 50 MPaThickness increase ASTM F 146

Density

26 ±3> 50

1215

< 10< 15

1.6

%%%%%%

g/cm3

For discontinuous operations inwater and/or steam applications,we recommend as a general guide asurface pressure of about 30 MPa.In such cases the gasket should beas thin as is practicable.

For reasons of safety, we adviseagainst the re-use of gaskets.

Dimensions of the standard sheetsSizes:2000 mm x 1500 mmThicknesses:0.5 mm, 0.8 mm, 1.0 mm, 1.5 mm;other thicknesses on request.Tolerances:thickness ±10%, length ± 50 mm,width ± 50 mm

Rich. Klinger Dichtungstechnik GmbH & Co KGAm Kanal 8-10A-2352 Gumpoldskirchen, AustriaTel ++43 (0) 2252/62599-137Fax ++43 (0) 2252/62599-296e-mail: marketing@klinger.co.athttp://www.klinger.co.at

Subject to technical alterations. Status: June 2008

Certified according to DIN EN ISO 9001:2000

Important points to be observedThe selection of gaskets requiresexpertise and know-how since evergreater reliability coupled with thelowest possible leakage rates aredemanded of gasket materials.The exacting demands made onthe tightness of gasket materials (e.g. Tightness class L0.01) mean thatwith increasing internal pressure higher surface pressures must beapplied to the gasket.

It must be shown that the flangejoint will tolerate the demands madeon it without being mechanicallyoverloaded. Furthermore, the surfacepressure applied to create the sealshould never fall below the requiredminimum value since this will reducethe life of the gasket. Highly stressed,but not overstressed gaskets have alonger life than understressedgaskets.

If the gasket fitted will besubjected to non-static loading, orwill suffer stress fluctuations duringdiscontinuous operation, it isadvisable to choose a gasket whichis not prone to embrittlement withincreasing temperature (e.g.KLINGERgraphite laminate orKLINGERtop-chem), especiallyfor steam and/or waterapplications.

Powerful sealing calculation with online help on CD-ROM

Distribuidor en Chile: MARCO INDUSTRIAL SPA www.marco.cl (+562) 2782-4400