4" ISO RING, CST BODY, SST W/TFE ENVELOPE , W/IRD, 1/4" CONNECTION, NO FILL, TFE CYLINDER

This 4-inch carbon steel ISO-ring with TFE-enveloped stainless steel flanges and integrated relief device (IRD) provides superior chemical resistance for demanding applications. Featuring TFE (PTFE) cylinder seals and 1/4 inch connection without fill, this ISO-ring delivers maximum chemical compatibility with customization flexibility.

Key Features:

• Size: 4 inch ISO connection
• Body Material: Carbon steel (CST) for strength
• Flange Material: Stainless steel with TFE envelope for chemical resistance
• IRD: Integrated relief device for overpressure protection
• Connection: 1/4 inch gauge connection
• Configuration: No fill fluid (custom fill-ready)
• Cylinder Seal: TFE (PTFE) for maximum chemical resistance

Benefits:

• TFE-enveloped stainless steel flanges offer exceptional chemical resistance
• IRD provides automatic overpressure protection
• No fill allows custom fluid selection for specific requirements
• TFE seals deliver industry-leading chemical compatibility
• 1/4 inch connection fits standard pressure gauges
• Optimized design balances strength and chemical resistance

Ideal for chemical processing, aggressive media handling, and corrosive applications requiring maximum chemical-resistant pressure monitoring with overpressure protection in 4-inch ISO connections.