ROCKWOOD RXSO

BRONZE SAFETY RELIEF VALVES

0 - 400 PSIG

Our RXSO Type valves are designed for stationary cryogenic storage tanks, anywhere where noxious or expensive liquids or gases place a premium on seal quality, dual safety relief systems, overpressure relief of tanks, pipelines, vessels, & pumps, air & gas compressors, and corrosive industrial applications.

FEATURES

Special PTFE seat, making bubble-tight seals possible to over 90% of set pressures per spec API 527; not applicable to steam.
Adjustable blowdown ring
ASME UV Certified
Cleaned and packaged for use in O2 service in compliance with the CGA specification G-4.1

Additional Cleaning Specifications:

4WPI-SW70003
GS-38
ES.660.503
GS-40

APPLICABLE CODES

Designed and Manufactured to Meet:

CGA S-12 and S-13
V-4301 (Cryogenic Non-Oxygen)
V-4401 (Oxygen)
ASME sec VIII
API 527
2014/68/EU PED (MDMT -325°F)
CRN 0G22625.5C

TECHNICAL DATA

Operating Ranges:

Temperature: -320°F to +400°F
Relief Pressure to 400 PSIG

Material of Construction:

Shell: Cast Bronze, ASME SB-62
Base: Forged Brass, Alloy C37700
Trim: Copper Alloy
Spring: Stainless Steel, 17-7 PH ASTM, A-313, Type 631

Options:

BPS threads available on most sizes
Lever operation

Testing:

Each valve is set, tested, re-tested and sealed at the factory to the customer's specifications.

Sizes:

Inlet - 1/2" to 2"

Outlet - 3/4" to 2-1/2"

Download the Product Sheet!