Heavy duty construction provides long service life.

Unique three-piece disc assembly with PTFE seat/seal offers superior leak-free performance over the entire pressure/temperature operating range.

Control ring offers precise blowdown adjustment.

Pivot between disc and spring corrects for misalignment and compensates for spring side thrust.

Every valve 100% tested/inspected for set pressure, blowdown and leakage.

All adjustments factory sealed to prevent tampering and disassembly.