Murphy PRV50 Automobile Parts User Manual


 
CKV-7867B/N
Revised 11-04
Catalog Section 55
(00-02-0121)
Diesel Fuel Check Valves
CKV and PRV Series
Problem Solvers for Diesel Engine
Shutdown Systems
Precision Made
Stainless Steel Spring
Compact and Simple to Install
Description
Murphy offers two types of diesel fuel line
valves: check valves and pressure relief
valves.
The CKV series check valves are in-line,
one-way valves that prevent fuel from being
siphoned back into an injector or injection
pump which could delay a shutdown.
There are two types of check valves:
CKV2336 and CKV1WPS. The CKV2336
has a 1/4 NPT threaded male connection on
each end for connecting to fuel line fittings
or hoses. The CKV1WPS check valve is typi-
cally mounted in the fuel bypass line of the
last fuel injector. The CKV1WPS features a
hollow bolt connection and a barbed, 1/8
NPT connection for flex hose or fitting.
The PRV series pressure relief valves,
relieve overpressure in a fuel system usually
caused by closing of a solenoid fuel valve.
The PRV50 and PRV70 have a 1/4 NPT
threaded connection on each end for con-
necting to fuel line fittings or hoses.
Specifications
Materials
Body Seal Spring
CKV2336 Brass Poppet SS
CKV1WPS Brass SS SS
PRV50/PRV70 Brass SS SS
Note: SS=Stainless steel.
Opening Pressure
Opening Fully Opened
CKV2336 1 psi (7) 4 psi (27)
CKV1WPS 1.4 psi (10) 2 psi (14)
PRV50 17 psi (117) 25 psi (172)
PRV70 10 psi (69) 70 psi (483)
Note: metric (kPa) equivalents in parenthesis.
Static Pressure (all):
150 psi (1.03 MPa) maximum
Weight
CKV2336: 1.3 oz (40.5 grams)
CKV1WPS: 1.3 oz (40.5 grams)
PRV50/PRV70: 1.3 oz (40.5 grams)
Dimensions
CKV2336
1-5/8 in. (41 mm)
1/4 NPT
CKV1WPS
2-1/4 in. (57 mm)
1/8 NPT
Barbs for
flexible hose
21/64 in. (8 mm)
diameter hollow
bolt hole
PRV50 and PRV70
1-1/2 in. (38 mm)
1/4 NPT