Pneumatic Valves for
Fuel Gas Shutoff
PV-94129B
Revised 04-00
Catalog Section 55
(00-02-0126)
Models M2582-P and M5180-P
■
Pneumatically Open and Shut Off Fuel Gas
Automatically or Semi-automatically
■
Pneumatic Control Pressure Can Be
Air, Gas or Oil
■
Models for 2 in. or 1 in. (51 mm or
25 mm) Fuel Gas Lines
MURPHY MATIC
®
Model M2582-P
Description
The M2582-P and M5180-P are pneumatically controlled fuel shut-off valves that open and close automatically or semi-automatically. The pneumatic control pressure can be air, oil or gas. A manual lever aids in opening the valve when control pressure is insufficient. A gas escape vent, when properly vented and maintained, releases trapped gas from the valve after shutoff. bar] and fully opens the seat at 3 psi (21 kPa)
[.21 bar]. The valve can be manually opened with lever and latched against inlet pressure of 100 psi (689 kPa) [6.89 bar]. The latch will release after pilot pressure reaches 2.5 psi (17 kPa) [.17 bar].
Basic Operation
Automatic: As the control pressure/vacuum increases the valve will open. When the control pressure/vacuum decreases, the valve will close.
Semi-Automatic: If the control pressure/vacuum is too low and the valve does not open automatically, it can be opened manually by lifting the built-in lever arm and setting the latch. The latch resets automatically when control pressure rises enough to release it.
M2582-P is for 1 in. (25 mm) gas lines. It automatically opens at 2 psi (14 kPa) [.14 bar] and fully opens the seat at 3 psi (21 kPa) [.21 bar].
The valve can be manually opened with the lever and latch against inlet pressure of 80 psi
(552 kPa) [5.52 bar]. The latch will release after pilot pressure reaches 2.5 psi (17 kPa) [.17 bar].
The M5180-P is for 2 in. (52 mm) gas lines.
It automatically opens at 2 psi (14 kPa) [.14
Specifications
Valve Body: Sandcast aluminum
(alodined for corrosion resistance).
Optional steel body available on M5180-P models only (see How to Order ).
Valve Seat: Buna-N
Valve Inlet Pressure (Maximum):
M2582-P: 80 psi (552 kPa) [5.52 bar]
M5180-P: 100 psi (689 kPa) [6.89 bar]
Parts Exposed to Gas Line Flow:
M2582-P:
• Aluminum
• Buna-N
• 302, 303, and 17-7 PH stainless steel
M5180-P:
• Aluminum (Steel optional)
• Buna-N
• 302, 303, 304, and 416 stainless steel
Control Diaphragm: Flexweave polyester fabric and Buna-N elastomer.
Control Pressure (Maximum):
M2582-P: 75 psi (517 kPa) [5.17 bar]
M5180-P: 80 psig (552 kPa) [5.52 bar]
How to Order
To order, use the diagram below.
______ – __
Model
M2582-P
M5180-P
Body
Blank = Aluminum
2 = Steel (applies to M5180-P)
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
M2582-P Dimensions
Latch Arm (see NOTE )
1/4 in. (6 mm) tube connection; control pressure 3 psi (21 kPa)
[.21 bar] minimum,
75 psi (517 kPa)
[5.17 bar] maximum.
M2582-P Flow
Characteristics
Laboratory Test
Breather/Vent
1/16 in. (2 mm)
1 NPT
(2 places)
1/4 NPT.
Vent and
Plug
3-3/32 in.
(79 mm)
5-1/2 in. (140 mm)
6-9/16 in.
(167 mm)
NOTE: Thumb operated opening latch (2.5 psi [17 kPa]
[.17 bar] required to release cocking latch)
10.0
[254.0]
9.0
[228.6]
8.0
[203.2]
7.0
[177.8]
6.0
[152.4]
5.0
[127.0]
4.0
[101.6]
3.0
[76.2]
2.0
[50.8]
1.0
[25.4]
0 250
[7.08]
500
[14.16]
750
[21.24]
1000
[28.32]
1250
[35.40]
1500
[42.48]
1750
[4956]
2000
[56.64]
2250
[63.72]
2500
[70.80]
2750
[77.88]
3000
[84.96]
Standard cubic feet per hour
Cubic meters per hour in brackets [ ]
Latch Arm (see NOTE 2 )
M5180-P Dimensions
Breather Vent
(see NOTE 1 )
10-7/16 in. (265 mm) 6-1/8 in.
(156 mm)
2 NPT
(2 places)
1/4 in. (6 mm) connection; control pressure
3 psi (21 kPa)
[.21 bar] minimum,
80 psi (552 kPa)
[5.52 bar] max.
(see NOTE 1 )
4-3/8 in.
(111 mm)
Vent and Plug
1/2 NPT
9-3/8 in. (238 mm) 4-1/4 in.
(108 mm)
NOTE 1: Control pressure connection fitting and breather vent fitting can be swapped to convert to vacuum control.
NOTE 2: Thumb operated opening latch (2.5 psi [17 kPa] [.17 bar] required to release cocking latch).
Shipping Weights
M2582-P: 5 lbs 10 oz (2.55 kg).
M5180-P: 14 lbs 9 oz (6.61 kg).
With steel body option “2”; 25 lbs (11.34 kg).
Shipping Dimensions
M2582-P: 8-1/4 x 8-1/4 x 7-1/2 in.
(210 x 210 x 191 mm).
M5180-P: 12-1/4 x 12-1/4 x 9-3/4 in.
(311 x 311 x 248 mm).
Service Parts
Specify part number when ordering.
M2582P M5180P
Handle and Latch Kit
Stem and Seat Kit
Top Works Complete Valve Less Body & Vent
Vent Bushing Assembly
Diaphragm Assembly
Pilot Diaphragm
55000148 55000154
55000147 55000135
55000150 55000155
55000143
55000184
00007908
55000132
55000153
55050420
FW Murphy
P.O. Box 470248
Tulsa, Oklahoma 74147 USA
+1 918 317 4100 fax +1 918 317 4266 e-mail [email protected] www.fwmurphy.com
CONTROL SYSTEMS & SERVICES DIVISION
P.O. Box 1819; Rosenberg, Texas 77471; USA
+1 281 633 4500 e-mail fax +1 281 633 4588 [email protected]
MURPHY DE MEXICO, S.A. DE C.V.
Blvd. Antonio Rocha Cordero 300, Fracción del Aguaje
San Luis Potosí, S.L.P.; México 78384
+52 444 8206264 fax +52 444 8206336
Villahermosa Office +52 993 3162117 e-mail [email protected]
www.murphymex.com.mx
FRANK W. MURPHY, LTD.
Church Rd.; Laverstock, Salisbury SP1 1QZ; U.K.
+44 1722 410055 fax +44 1722 410088 e-mail [email protected]
www.fwmurphy.co.uk
MURPHY SWITCH OF CALIFORNIA
41343 12th Street West
Palmdale, California 93551-1442; USA
+1 661 272 4700 fax +1 661 947 7570 e-mail [email protected]
www.murphyswitch.com
MACQUARRIE CORPORATION
1620 Hume Highway
Campbellfield, Vic 3061; Australia
+61 3 9358 5555 e-mail fax +61 3 9358 5558 [email protected]
R
E
G ISTERE
D
USA–ISO 9001:2000 FM 28221
UK–ISO 9001:2000 FM 29422
In order to consistently bring you the highest quality, full featured products, we reserve the right to change our specifications and designs at any time.
Printed in U.S.A.
PV-94129B page 2 of 2
