Brochure

Parker Hannifin Corporation
Climate & Industrial Controls Group
Cleveland, OH
Catalog CIC-2003-1/US
Industrial Refrigeration Products: Safety Relief Valves
414
Type SR/SRH
Description
The type SR and SRH Safety Relief Valves are designed
and constructed in strict accordance to the requirements
of ASME Boiler and Pressure Vessel Code and certified
by the National Board of Boiler and Pressure Vessel
Inspectors. Each valve is accurately set and sealed at the
factory and bear the UV and NB symbols. Employing
proven principles of design, these safety relief valves are
highly reliable and dependable. Precision machined
stainless steel internal parts and a PTFE seat disk help
prevent sticking due to corrosion and assure valve
opening at the set pressure long after installation.
SR Connection sizes are ½" FPT inlet with ¾" or 1" FPT
outlet or a ¾" inlet with 1 ¼" or 1 ½" outlet.
SRH series valves are available with a ½" inlet and ¾" or
1" outlet or a ¾" inlet and 1" outlet.
●
SR Series designed to meet ASHRAE 15 2001 require-
ments for new system installations
●
SRH Series designed to meet ASHRAE 15 1994 (or
earlier) system requirements
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Certified by the National Board of Boilers and Pressure
Vessel Inspectors
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All stainless steel internal parts
●
PTFE seat
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Accurate and dependable
●
Pressure relief settings from 10.3 - 27.6 bar
(150 - 400 psig)
Technical Information
Type SR Safety Relief Valves
Relief Relief
Valve Valve Valve
Type Inlet Outlet
SR1 1/2" FPT 3/4" FPT
SR2 1/2" FPT 1" FPT
SR3 3/4" FPT 1-1/4" FPT
SR4 3/4" FPT 1-1/2" FPT
Type SRH Safety Relief Valves
Relief Relief
Valve Valve Valve
Type Inlet Outlet
SRH1 1/2" FPT 3/4" FPT
SRH2 1/2" FPT 1" FPT
SRH3 3/4" FPT 1" FPT