REGO PRV9433TP400P 3/8″ Cryogenic Relief Valve 400 PSI PTFE Pipeaway O2 Clean

Product Specifications

The exact PRV9433TP400P is specified as a 3/8″ MNPT brass 9400-Series relief valve set at 400 PSIG, with PTFE softgoods, no drain hole, and an installed 3/8″ FNPT pipeaway adapter.

Product Description

The REGO PRV9433TP400P is a high-quality non-ASME cryogenic gas pressure relief valve designed for vapor-line safety relief applications and cryogenic liquid containers.

This configuration features a rugged brass body, stainless-steel spring trim, PTFE softgoods, and a factory-calibrated 400 PSIG relief setting. The inlet is 3/8″ MNPT, while the installed pipeaway adapter provides a 3/8″ FNPT outlet connection.

The pipeaway connection is particularly useful when discharged gas needs to be routed through piping to a designated outdoor or safe vent location. REGO specifies the 9400 Series for gas service only, not liquid service.

Key Features

• Genuine REGO component
• Model PRV9433TP400P
• REGO 9400 Series
• 400 PSIG factory set pressure
• 3/8″ MNPT inlet
• 3/8″ FNPT pipeaway outlet
• Factory-installed pipeaway adapter
• Durable brass valve body
• PTFE seat / softgoods
• Stainless-steel spring trim
• 0.062″ orifice
• Operating temperature: -320°F to +165°F
• No drain hole
• Bubble-tight at 95% of set pressure
• Tamper-resistant construction
• Repeatable pressure-relief performance
• Easy-to-read pressure labeling
• 100% factory tested
• Cleaned and packaged for oxygen service per CGA G-4.1
• Designed for gas service only
• Non-ASME relief valve

Typical Applications

Suitable for cryogenic liquid containers, industrial gas vapor lines, oxygen systems, cryogenic storage equipment, gas distribution systems, cylinder installations, and vented pressure-relief systems.

The installed pipeaway adapter makes this model especially useful where the relief-valve discharge must be connected to piping and routed away from the equipment.