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Flange Gaskets

  • Spiral Wound Gasket
  • Ring Type (RTJ) Oval, and Hexagonal Type Gaskets
  • Gasket Insulation Kits
  • CNAF Flat Ring Compressed Fibre
  • Kammprofile Gaskets

Spiral Wound Gaskets

Spiral wound gaskets combine the ease of sealing of a graphite, PTFE or mica filler with the strength afforded by a specially profiled metallic, spring-like reinforcement. The sealing element is manufactured by interleaving and alternating metallic winding strip and filler to create a gasket that is robust and easy to install.

Ring Type Joints (RTJ)

Ring Type Joints are designed for use in high pressure applications and can be manufactured from various materials to suit the process media and the flange materials. RTJs are precision machined metallic rings which are designed to be used with ASME B16.5, API 6B, and API 6BX

Flange Insulation Gasket Sets

Standard Flange Insulation Sets comprise:
One 3.2mm thick Neoprene Faced Phenolic Gasket
Two 3mm thick Phenolic Washers per bolt
Two 3mm thick MSZP Washers per bolt
One Polyester Sleeve per bolt

Type ‘E’ Full Face Gasket

Type ‘F’ Inside Bolt Circle Gasket

Type ‘D’ Ring Type Gasket

Compressed Fibre Flat Gaskets (CNAF)

Dimensions TO ASME B16.21 ( used with ASME B16.5 RF Flanges )

NOMINAL PIPE SIZEINSIDE DIAMETEROUTSIDE DIAMETER
DN mmINCH#150#300#400#600#900
15½214854545464
20¾275767676770
251336773737379
321 1/4427683838389
401 1/2488695959598
50260105111111111143
6521/273124130130130165
80389137149149149168
9031/2102162165162162
1004114175181178194206
1255141197216213241248
1506168222251248267289
2008219279308305321359
25010273340362359400435
30012324410422419457498
35014356451486483492521
40016406514540537565575
45018457549597594613638
50020508606654648683699
60024610718775768791838

CNAF gaskets are made from sheet material where the fibres are combined with a binder such as:  Neoprene, Nitrile, EPDM, Graphite, or SBR. It is important to select the correct grade, unlike asbestos, CNAF materials have different chemical resistance and temperature ratings dependent on the grade used.

Kammprofile Gasket

Unlike a Spiral-wound Gasket, all the compressive force is exerted on the Kammprofile graphite facing, which results in a very tight seal…….

Kammprofile Gaskets are more tolerant to sealing surface defects and seal more effectively in fugitive emissions services than a Spiral-wound Gasket

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