REGO PRV19434TP350 1/2″ Brass ASME Cryogenic Relief Valve 350 PSI PTFE O2 Clean

Key Features

• Factory set at 350 PSI
• 1/2″ NPT connection
• Durable brass valve body
• PTFE seat/softgoods
• Stainless-steel spring trim
• No drain hole
• No pipe-away adapter
• ASME-rated construction
• Bubble-tight at approximately 95% of set pressure
• Full flow at approximately 110% of set pressure
• Repeatable pressure-relief performance
• 100% factory tested
• Cleaned and packaged for oxygen service
• Extreme-temperature capability down to -320°F
• Compact 2.8″ overall height
• Intended for vapor service only

Flow Capacity

RegO’s published flow table gives the 350 PSIG setting a nominal air-flow capacity of approximately 277 SCFM for the PRV19430/PRV29430 Series.

Typical Applications

Suitable for:

• Cryogenic storage systems
• Liquid-cylinder vapor spaces
• Oxygen systems
• Industrial gas systems
• Mini-bulk cryogenic containers
• Cryogenic gas piping
• Pressure-protection systems
• CO₂ equipment where specifications match

The exact PRV19434TP350 also appears as the 350-PSI brass relief valve used on commercial cryogenic tank equipment. 

Manufacturer	RegO
Part Number	PRV19434TP350
Series	19430 Series
Type	ASME Pressure Relief Valve
Body Material	Brass
Inlet Connection	1/2″ NPT
Factory Set Pressure	350 PSIG
Seat / Softgoods	PTFE
Orifice Area	0.062 sq. in.
Temperature Range	-320°F to +165°F (-196°C to +74°C)
Spring Trim	Stainless Steel
Overall Height	2.8″
Drain Hole	No
Pipe-Away Adapter	No
O2 Cleaned	Yes
Cleaning Standard	CGA G-4.1
Service	Cryogenic Gas / Vapor
ASME Rated	Yes

Product details

Part / SKU	PRV19434TP350

Package includes

• REGO PRV19434TP350 1/2" Brass ASME Cryogenic Relief Valve 350 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.