Absolute pressure relief valve 15-24 psi

Key Features

• Direct-acting absolute pressure relief design
• Factory preset – tamper-resistant calibration
• Immune to ambient pressure changes – altitude stable
• 100% factory tested for leakage, crack, and reseat
• Excellent reseat and high flow performance
• Qualified for extreme cryogenic environments
• Vent-to-atmosphere or inline piping configurations
• Nickel-plated brass construction with SS spring and seal

Technical Data

Set Pressure Range

15.0–24.0 PSIA (1.02–1.65 Bar)

Set Tolerance

±0.5 PSI

Reseat

92% of set pressure (PSIA)

Temperature Range

−80°F to +350°F (−62°C to +176°C)

Lubrication

Krytox®

Materials

Body, End Cap

Nickel-plated CDA 360 Brass

Poppet, Screws, Ferrules

CDA 360 Brass

Bellows

Brass + 300 Series Stainless Steel

Seals

Fluorosilicone

Flow Capacity

Example flows (110% of set pressure, N₂)

For helium flow

multiply SCFM by 2.64

• 16.0 PSIA → 1.52 SCFM
• 18.0 PSIA → 1.90 SCFM

Typical Applications

• Liquid helium dewars
• Cryogenic gas systems requiring absolute pressure control
• Systems operating across varying altitudes