REGO PRV9434T450 1/2″ Brass Cryogenic Relief Valve 450 PSI PTFE O2 Clean

Brand

RegO

Model / MPN

PRV9434T450

Series

RegO 9400 Series – Non-ASME Cryogenic Gas Relief Valve

Product Description

The RegO PRV9434T450 is a 1/2″ brass cryogenic gas pressure relief valve designed for pressure protection in cryogenic and industrial gas systems. This model is factory set at 450 PSIG and incorporates a PTFE seat, providing excellent chemical resistance and suitability for very low-temperature service.

This specific configuration includes an integral drain hole and is supplied without a pipe-away adapter. It is O2 cleaned for use in oxygen-service systems when installed according to applicable safety requirements.

The PRV9434T450 is part of RegO’s 9400 Series, designed primarily for gas/vapor pressure relief on cryogenic liquid containers and related piping systems.

Technical Specifications

Key Features

• Factory preset at 450 PSIG
• 1/2″ male NPT connection
• Rugged brass body
• PTFE seat for cryogenic service
• Stainless-steel spring/internal components
• Integral drain/weep hole
• No pipe-away adapter
• O2 cleaned for oxygen-service applications
• Compact spring-loaded relief design
• Tamper-resistant factory pressure setting
• Designed for repeatable opening and reseating
• Suitable for high-pressure gas/vapor systems
• PTFE configuration supports extremely low-temperature service
• Designed for cryogenic liquid-container vapor-space protection

PTFE Seat Advantages

The PTFE-seat configuration offers several advantages for cryogenic service:

• Excellent low-temperature performance
• Strong chemical resistance
• Low moisture absorption
• Good compatibility with many industrial gases
• Reliable sealing over a broad temperature range

This makes the PRV9434T450 particularly useful where a higher 450 PSI relief setting and cryogenic-temperature capability are required.

Typical Applications

• Cryogenic liquid cylinders
• Oxygen systems
• Nitrogen systems
• Argon systems
• Industrial gas storage equipment
• Cryogenic piping
• Mini-bulk systems
• Specialty gas installations
• Vapor-space pressure protection
• High-pressure cryogenic gas equipment

Service Note: This valve should be listed primarily for gas/vapor relief service, not direct liquid relief service.

Product details

Part / SKU	PRV9434T450

Package includes

• REGO PRV9434T450 1/2" Brass Cryogenic Relief Valve 450 PSI PTFE O2 Clean

Included components and any stated pack quantity are as described in this listing. Optional accessories shown separately are sold separately unless expressly included above.