Cryogenic Relief Valves

RegO’s NR Series is designed especially for indoor applications (i.e. laboratories) where relief valve discharge noise is an issue. PRVs provide excellent flow characteristics with a 50% reduction in outlet noise related to valve relief.

• Packaged and cleaned for oxygen service per CGA G-4.1

• Bubble tight at 95% of set pressure

• 100% factory tested

• Repeatable performance

• Temperature range -320° to +165° F

The B-19434B Series relief valves are suitable for use with oxygen and non corrosive gases. The C-19434B series relief valves are designed for use in carbon dioxide service.

• Both designs permit the valve to open slightly to relieve moderately excessive pressure.

• When the pressure increases beyond a predetermined point, the valve opens to its full discharge capacity in order to quickly reduce excess pressure.

• Pipe-away adapter for venting gas to the outdoors is available.

• A.S.M.E. rated. NB Certified.

• B-19434-B Series are cleaned for use in oxygen per CGA G-4.1.

UA3149A Series

“Pop-type” relief valves are designed for use as secondary relief valves in carbon dioxide transports & stationary storage tanks. The relief valves are designed to protect tanks from excessive pressure in event of fire /other emergencies. Small throttling-type primary relief valves must be provided to control boil-off and maintain tank pressures. Provisions must be made to prevent accumulation and build-up of water and foreign material in valves.

“Pop-type” design permits relief valve to open slightly to relieve moderately excessive pressures.
Relief valve “pops” open to full discharge capacity when pressure exceeds a predetermined point.
100% Factory Tested

PRV 9400 Series

These relief valves are specifically designed for thermal safety relief applications and for use with cryogenic liquid containers.

All valves are cleaned and packaged for oxygen service per CGA G-4.1.
Bubble tight at 95% of set pressure.
Easy to read color coded psig / bar labels.
Adapters provide standard pipe thread connections for venting gas to the outdoors.
Repeatable performance.
100% factory tested.
Temperatures Range -320° to +165° F.

PRV 19430/29430 Series

These relief valves are designed for oxygen / other industrial gases and for cryogenic service. Apply on piping systems, liquid cylinders, or mini-bulk cryogenic containers where an ASME relief valve is desired.

• A.S.M.E. rated, National Board Certified.

• Bubble tight at 95% of set pressure.

• Full flow at 110% at set pressure.

• Repeatable performance.

• 100% factory tested.

• Temperatures Range -320° F to 165° F.

• Cleaned and packaged for oxygen service per CGA G-4.1.

SKU	DESCRIPTION	MANUFACTURER
NR9432T230	PRV 230 PSIG 15.9 Bar PTFE Seat	Rego
NR9432T235	PRV 235 PSIG 16.2 Bar PTFE Seat	Rego
NR9432T245	1/4" NPT Setting 245 PSIG	Rego
NR9432T250	1/4" NPT Setting 250 PSIG	Rego
NR9432T265	1/4" NPT Setting 265 PSIG	Rego
NR9432T275	1/4" NPT Setting 275 PSIG	Rego
NR9432T285	1/4" NPT Setting 285 PSIG	Rego
NR9432T300	1/4" NPT Setting 300 PSIG	Rego
NR9432T325	PRV 325 PSIG 22.4 Bar PTFE Seat	Rego
NR9432T350	PRV 350 PSIG 24.1 Bar PTFE Seat	Rego
NR9432T360	1/4" NPT Setting 360 PSIG	Rego
NR9432T400	PRV 400 PSIG 27.5 Bar PTFE Seat	Rego
NR9432T450	1/4" NPT Setting 450 PSIG	Rego
NR9432T500	1/4" NPT Setting 500 PSIG	Rego
NR9432T550	1/4" NPT Setting 550 PSIG	Rego
NR9432T600	1/4" NPT Setting 600 PSIG	Rego
PRV19134TP300	1/4 NPT, 300 PSI, ASME Relief	Rego
PRV19432T600	1/4 NPT, 600 PSI, Brass ASME Relief, PTFE	Rego
PRV19432TP300	1/4 NPT, 300 PSI, Brass ASME Relief, PTFE, With Drain Hole	Rego
PRV19432TP400	1/4 NPT, 400 PSI, Brass ASME Relief, PTFE, With Drain Hole	Rego

Cryogenic Relief Valves

Rego “NR” Series Noise Reduction Relief Valves