Murphy Diesel-Fuel Shutoff Valve SV-Series Owner's Manual

Diesel-Fuel Shutoff Valves
Description
The SV-series valve is a normally closed valve that
opens when current is supplied from the battery
through a magnetic switch. Temperature, level, or
pressure SWICHGAGE instruments installed on
®
the engine and pump or compressor, trip the mag-
netic switch, breaking the circuit from the battery
which closes the valve and stops the engine.
The SV-12 valve operates on 12VDC, has a 1/4 NPT
inlet and outlet, and a full 3/16 in. (5 mm) orifice.
24 VDC (SV-24) is optional The SV valves open
against 30 psi. (207 kPa) [2.07 bar] inlet pressure.
Greater Flow Rate Valve
Special series SV valve is available with a 1/4 in.
(6 mm) orifice which opens against maximum
pressure of 15 psi (103 kPa) [1.03 bar]. This
valve is recommended where greater flow is
required, and only static head or low transfer
pump pressures are encountered.
High Pressure Valves
SV-HP series valves open against diesel fuel
transfer pump pressure up to 60 psi (414 kPa)
[4.14 bar]. Models are available for 12 or 24 volt
DC systems. The orifice is 1/4 in. (6 mm), using
the same inlet/outlet and options as standard SV.

Specifications

Electrical Rating: 12 VDC, 10 watts
Orifice: 3/16 in. (5 mm) diameter (optional 1/4 in.
[6 mm] diameter). See chart above, right.
Body Connections: 1/4 NPT inlet/outlet
Maximum Opening Pressure:
3/16 in. (5 mm) orifice: 30 psi (207 kPa) [2.07 bar]
1/4 in. (6 mm) orifice: 15 psi (103 kPa) [1.03 bar]
SV-Series
■
■
■
■
■
SV-HP
(High Pressure model)
Orifice: 1/4 in. (6 mm) diameter. See chart below.
Maximum Opening Pressure:
60 psi (414 kPa) [4.14 bar].
3/16 Orifice 1/4 Orifice
Differential
1 2 5 10 20 30 1 2 5 10 15
Pressure
Gallons per
.48 .68 1.1 1.5 2.2 2.6 .72 1.05 1.65 2.35 2.70
Minute
Liters per
2.01 2.85 4.62 6.3 9.24 10.92 3.02 4.41 6.93 9.87 11.34
Minute
Dimensions
2-5/32 in.
(55 mm)
2-11/16 in.
(68 mm)
BATTERY GROUND
2-3/16 in.
(56 mm)
FLOW
2-1/8 in.
(54 mm)
3/8 in.
(9 mm)
11/16 in.
(17 mm)
3/4 in.
(19 mm)
2 Mounting Holes
Shipping Weight: 1 lb. 6 oz. (0.68 kg)
Shipping Dimension: 3 x 2-3/4 Sx 2-3/4 in.
(76 x 70 x 70 mm)
SV-99026B page 1 of 2
Solenoid Operated Fuel Shutoff Valve

Diesel Engines

Diesel Driven Pumps and
Compressors
High Pressure Models
Select from 12 or 24 VDC Models
Warranty
A limited warranty on materials and workmanship
is given with this FW Murphy product. A copy of
the warranty may be viewed or printed by going to
www.fwmurphy.com/support/warranty.htm
How to Order
See the diagram below, example: SV–12 –HP
CAUTION: Do NOT use the SV valves with distribu-
tor type injection pumps. For use with DIESEL ONLY.
Coil Voltage
12 = 12 VDC
24 = 24 VDC
HP = High Pressure
Orifice
Blank (non-"HP" models) = 3/16 in. (5mm) dia.
Blank ("HP" models) = 1/4 in. (6 mm) dia.
4 = 1/4 in. (6 mm) dia. (non-"HP" models only)
SV Repair Parts
Callouts diagram shown on page 2
C C a a l l l l o o u u t t P P a a r r t t D D e e s s c c r r i i p p t t i i o o n n
A
Screw
B Coil Replacement Kit
Brass Body
12 volt kit
3/8 in.
24 volt kit
(9 mm)
C Core Repair Kit (Std mdls)55-01-0155
C Core Repair Kit (HP mdls) 55-01-0156
10-24 NC-2B
D
Valve Body: 3/16 Orifice
1/4 NPT x 1/4 NPT
D Valve Body: 1/4 Orifice
1/4 NPT x 1/4 NPT
SV-99026B
Revised 6-05
Catalog Section 55
(00-02-0375)
SV– __ – __ – __
P P a a r r t t N N u u m m b b e e r r
80-04-1412
55-01-0141
55-01-0145
55-05-0194
(std.)
55-05-0193