Technical Specifications

Operating range:

Pressure p = 25 bar
Temperature

• Continuous operation: 
  t = -30°C … +120°C

Recommended surface roughness: 
R_Z ≤ 100 µm

Materials:

• Sealing lip: EPDM (Shore-A-hardness 70 ± 5)
• Outer ring: PVC

Recommended applications:

Industries

• Power plant technology
• Water and waste water technology
• Building services engineering

Components

• Flange connections
• Pipe connections

Functional description:

The EPDM sealing lip is fitted on the inner diameter of the PVC ring. The PVC ring acts as both a supporting and a centering ring. It also absorbs the bolt force which is needed particularly when there are high pressures to be sealed, and thus protects the elastomer ring against excessive compression. The PVC ring does not come into contact with the medium.

Notes:

Production note:
Up to DN 800 or 32”, the sealing lip is produced by injection molding. This is superior to frequently used displacement method with open molds as it offers greater dimensional accuracy. Above DN 800 or 32”, the sealing lip is extruded and is sold by length with instant adhesive for on-site assembly.

Forms of supply:

• Up to DN 600 (24”), the gasket is produced as a single piece.
• Above DN 600 (24”), the seal is produced in easy to transport segments and then assembled.
• Standard dimensions as defined in the EagleBurgmann in-house standard for DIN flanges or for flanges to ANSI B16.5 and MSS SP-4.4