Murphy SV-Series - Manual

SV-99026B page 1 of 2

SV-Series

■

Solenoid Operated Fuel Shutoff Valve

■

Diesel Engines

■

Diesel Driven Pumps and
Compressors

■

High Pressure Models

■

Select from 12 or 24 VDC Models

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 12 VDC, 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-HP

(High Pressure model)

Orifice:

1/4 in. (6 mm) diameter. See chart below.

Maximum Opening Pressure:

60 psi (414 kPa) [4.14 bar].

Dimensions

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)

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

BATTERY GROUND

FLOW

3/4 in.

(19 mm)

3/8 in.

(9 mm)

11/16 in.
(17 mm)

2-1/8 in.

(54 mm)

3/8 in.

(9 mm)

2-3/16 in.

(56 mm)

2-11/16 in.

(68 mm)

2-5/32 in.

(55 mm)

Brass Body

10-24 NC-2B

2 Mounting Holes

Differential

Pressure

3/16 Orifice

1/4 Orifice

Gallons per

Minute

Liters per

Minute

1 2

5 10 20 30 1

2 5 10 15

.48 .68 1.1 1.5 2.2 2.6 .72 1.05 1.65 2.35 2.70

2.01 2.85 4.62 6.3 9.24 10.92 3.02 4.41 6.93 9.87 11.34

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– __ – __ – __

A

Screw 80-04-1412

B

Coil Replacement Kit

12 volt kit

55-01-0141

24 volt kit

55-01-0145

C

Core Repair Kit (Std mdls) 55-01-0155

C

Core Repair Kit (HP mdls) 55-01-0156

D

Valve Body:

3/16 Orifice

1/4 NPT x 1/4 NPT

(std.)

55-05-0194

D

Valve Body:

1/4 Orifice

1/4 NPT x 1/4 NPT

55-05-0193

P

Pa

arrtt D

De

essccrriip

pttiio

on

n

P

Pa

arrtt N

Nu

um

mb

be

err

SV Repair Parts

Callouts diagram shown on page 2

C

Ca

allllo

ou

utt

SV-99026B

Revised 6-05

Catalog Section 55

(00-02-0375)

Diesel-Fuel Shutoff Valves