4" ISO-RING CS CS IRD PRPY GLY CUST. INST. BUN

This 4-inch carbon steel ISO-ring with integrated relief device (IRD) provides pressure monitoring with propylene glycol fill for customer-supplied instrumentation. Featuring Buna-N cylinder seals, this ISO-ring offers petroleum compatibility with freeze protection and flexible instrumentation selection.

Key Features:

• Size: 4 inch ISO connection
• Body Material: Carbon steel (CS) for strength
• Flange Material: Carbon steel (CS) for durability
• IRD: Integrated relief device for overpressure protection
• Fill Fluid: Propylene glycol for freeze protection
• Configuration: Customer-supplied instrumentation (instrument-ready)
• Cylinder Seal: Buna-N (natural rubber) for petroleum compatibility

Benefits:

• IRD ensures automatic overpressure protection
• Propylene glycol fill prevents freezing in cold environments
• Customer instrumentation allows custom gauge or transmitter selection
• Buna-N seals deliver excellent petroleum product compatibility
• Flexible configuration for specialized monitoring requirements
• Ready for custom instrumentation installation

Ideal for petroleum terminals, fuel handling, and industrial loading systems requiring customizable pressure monitoring with freeze protection and overpressure protection in 4-inch ISO connections.