CIERNE Sealing gasket is special designed for flange sealing and insulating in all critical services. It’s suitable for raise/flat-face and RTJ flanges in all pressure classes even API 15,000 psi service.Due to its unique pressure activated sealing mechanism, the gasket requires far less bolt stress to seal than any other gasket. The CIERNE gasket inner diameter is exactly matched to the flange bore to eliminate turbulent flow and flange face erosion/corrosion. The seal elements are replaceable in the reusable gasket retainer.

FEATURES AND BENEFITS

• Seals and insulates at all pressures classed including API 15000 psi service
• Withstands severe service conditions including large bending moments, vibration, temperature and pressure cycling
• Designed to withstand corrosive environments, including high concentrations of CO2 , H2S, produced water, etc
• Outstanding insulation properties for cathodic protection
• Pressure-activated seals provide high confidence sealing and eliminate costly leaks
• Gasket is sized to the bore to protect flange faces from media-induced corrosion and flow-induced erosion
• Prevents turbulent flow at flanged connections
• Mitigates galvanic corrosion in dissimilar metal flanges
• Available to match any flange specification (ANSI,API,MSSP,BS,DIN,AS,others)
• Can mate mismatched RTJ with raised-face flange
• Easy installation, make up and removal

STAINLESS STEEL CORE

The standard stainless steel core is 316L. Special materials such as duplex stainless steel, inconel stainless steel can be made according the requirements.

GASKET MATERIAL

SEAL ELEMENT TEMPERATURE LIMITS

SLEEVE MATERIAL

WASHER MATERIAL

STEEL WASHER MATERIAL

Zinc Plated Steel (ZPS) Stainless Steel Washer(SS)

SHardened Coating Steel Isolating Washers(HCS) Xylan coated Carbon Steel(XPS)