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DIMENSIONS

7-5/16 in. 

(186 mm)

Reset Knob

1 NPT
(2 places)
 

3-3/32 in.
(79 mm)

Manual Trip

Knob

1/2 NPT Conduit
Connection

5-1/2 in. (140 mm)

1/4 NPT
Vent and Plug

6-9/16 in.
(167 mm)

Breather/Vent 

1/16 in. (2 mm)

1 NPT
(2 places)
 

3-3/32 in.
(79 mm)

1/4 in. (6 mm) tube connection; control 
pressure 3 psi (21 kPa) [0.21 bar] minimum, 
75 psi (517 kPa) [5.17 bar] maximum. 

5-1/2 in. (140 mm)

1/4 NPT

Vent and 

Plug

Latch Arm (see 

NOTE

NOTE:

 Thumb operated opening latch (2.5 psi [17 kPa] 

 [0.17 bar] required to release cocking latch)

9-3/8 in. (238 mm)

4-3/8 in. 

(111 mm)

Vent and Plug
1/2 NPT

2 NPT
(2 places)

4-1/4 in.

(108 mm)

10-7/16 in. (265 mm)

Breather Vent
(see 

NOTE 1

)

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] [0.17 bar] required to release cocking latch).

6-1/8 in. 

(156 mm)

1/4 in. (6 mm)
connection;
control pressure
3 psi (21 kPa)
[0.21 bar] minimum,
80 psi (552 kPa)
[5.52 bar] maximum
(see 

NOTE 1

)

Latch Arm (see 

NOTE 2

)

M2582

M5180-P

Magnetic Switch Adapters

65700053 

(was 65020126)

; 65700054 

(was 65020127)

; 65700055 

(was 65020155)

M2582-P 

CAUTION:

THE ARROW ON THE SIDE OF THE FUEL VALVE 

MUST

POINT TO THE CORRECT DIRECTION OF THE

FLOW, FROM FUEL SOURCE TO THE ENGINE. APPLY PIPE DOPE 

ONLY

TO FUEL PIPE, 

NOT

TO THE FUEL VALVE.

2-7/16 in.
(62 mm)

2-5/8 in. (67 mm)

1-15/32 in.

(37 mm)

31/32 in.
(25 mm)

1-23/32 in.
(44 mm)

2-5/16 in. (59 mm)

15/32 in.
(12 mm)

Panel Mount screws

10-24 N.C. x 

5/16 in. (8 mm) long 

Terminal screws

8-32 N.C. x 

1/4 in. (6 mm) long 

GND ALT1

ALT2

SW

3/8 in.
(10 mm)

Installation M-7980N page 3 of 12

1-800-548-1191 - http://www.partdeal.com - [email protected]

Summary of Contents for M5081FS

Page 1: ...orward in the line after shut off M5081FS Normally Energized Circuit The M5081FS is manually opened electrically latched open and tripped by interrupting the coil power circuit Magnetic Switch Adapter As ignition systems wear from usage their power output becomes less and less Ignition may not have the capacity to reliably trip the Fuel Valve Therefore the use of a Magnetic Switch Adapter for CD i...

Page 2: ...3000 84 96 2750 77 88 750 21 24 0 1 0 25 4 2 0 50 8 3 0 76 2 4 0 101 6 5 0 127 0 6 0 152 4 7 0 177 8 8 0 203 2 9 0 228 6 10 0 254 0 4 o z 0 1 1 k g 1 0 o z 0 2 8 k g 5 p s i g 3 4 k P a 0 3 4 b a r 1 0 p s i g 6 9 k P a 0 6 9 b a r 2 0 p s i g 1 3 8 k P a 1 3 8 b a r 3 0 p s i g 2 0 7 k P a 2 0 7 b a r 4 o z 0 1 1 k g 1 0 o z 0 2 8 k g 5 p s i g 3 4 k P a 0 3 4 b a r 1 0 p s i g 6 9 k P a 0 6 9 b ...

Page 3: ...ed to convert to vacuum control NOTE 2 Thumb operated opening latch 2 5 psi 17 kPa 0 17 bar required to release cocking latch 6 1 8 in 156 mm 1 4 in 6 mm connection control pressure 3 psi 21 kPa 0 21 bar minimum 80 psi 552 kPa 5 52 bar maximum see NOTE 1 Latch Arm see NOTE 2 M2582 M5180 P Magnetic Switch Adapters 65700053 was 65020126 65700054 was 65020127 65700055 was 65020155 M2582 P CAUTION THE...

Page 4: ...n 366 367 mm 3 4 in 19 mm dia 4 places each end equally spaced on a 15 32 in 121 mm b c bolt circle 45 3 5 8 in 92 mm dia 2 in 51 mm dia 2 places 150 RF raised face pipe flange M5081 and M5081FS M5081 3 Steel Flanged Option CAUTION THE ARROW ON THE SIDE OF THE FUEL VALVE MUST POINT TO THE CORRECT DIRECTION OF THE FLOW FROM FUEL SOURCE TO THE ENGINE APPLY PIPE DOPE ONLY TO FUEL PIPE NOT TO THE FUEL...

Page 5: ...ow manual opening of the valve The thumb operated latch can be locked in place to hold the lever arm latched The cocking latch will be released when pilot pressure reaches 2 5 psi 17 kPa 0 17 bar M2582 P and M5180 P automatically open at 2 psi 14 kPa 0 14 bar and fully open at 3 psi 21 kPa 0 21 bar See Specifications page 12 for maximum control pressure 3 If vacuum control is desired swap the Cont...

Page 6: ...K IV 12 24 refer to page 10 Magnetic Switch Adapters for Use with Capacitor Discharge Ignitions Connect the Magnetic Switch Adapter between the fuel Valve terminal 1 and the CD Ignition See wiring diagrams pages 7 and 11 WARNING PERFORM THE WIRING OPERATION WITH THE POWER SOURCE OFF AND THE AREA MADE NON HAZARDOUS MAKE SURE THE VOLTAGE AND CURRENT REQUIREMENTS ARE WITHIN THE FUEL SHUT OFF VALVE RA...

Page 7: ...NITIONS Dual CD Ignition Systems Remove the jumper on terminals 6 5 Connect second ignition to Magnetic Switch Adapter terminal ALT2 NOTE 4 To CLOSE FUEL VALVE and GROUND THE IGNITION Dual CD Ignition Systems Remove the jumper on terminals 6 5 Connect a 100 ohm 2 watt resistor between valve terminals 1 2 Ground terminal 6 Connect second ignition to Magnetic Switch Adapter terminal ALT2 Jumpers 6 2...

Page 8: ... 5 Terminal Block NOTE 2 To CLOSE FUEL VALVE NOT GROUNDING THE IGNITIONS Dual Magneto Systems Remove the factory installed jumpers on terminals 6 5 and 9 8 Add 65010065 diode package as shown Do NOT ground terminals NOTE 4 To CLOSE FUEL VALVE and GROUND THE IGNITION Dual Magneto Systems Remove the jumper on terminals 9 8 Add 65010065 diode package as shown Add ground wire to terminal 5 Jumpers 6 2...

Page 9: ...HE FUEL SHUT OFF VALVE RATINGS HARD CONDUIT WITH APPROVED SEALS IS REQUIRED BY THE NEC FOR HAZARDOUS AREA INSTALLATIONS M5081 C to LCDT PS CD R P positive ground FV GND IGN 1 FV NO C NC Relay Contacts jumper jumper M5081 Terminal block LCDT PS CD R P Terminal block 7 2 6 5 1 9 3 8 4 10 FV FET output rated 0 5 A 250 VDC max Relay contacts rated 3 A 30 VDC 4 A 125 250 VAC M5081 C to LCDT PS CD N neg...

Page 10: ... MARK IV 12 24 ALM 12 24 FV S D GRD MARK III 12 24 terminal block Auxiliary Relay Auxiliary or Shutdown Relay 7 2 6 5 1 9 3 8 4 10 M5081FS Terminal Block 12 24 VDC Power source MARK III has FET outputs rated 0 5 A 250 V max 1 Auxiliary Relays must be hermetically sealed third party certified for use in Class I Division 2 Gps C D areas 2 1 2 2 K1 K2 IN4005 Diode for flyback protection FV IGN FV ALM...

Page 11: ...Black Red Magnetic Switch Adapter GND ALT1 ALT2 SW K2 K2 is hermetically sealed auxiliary relay third party certified for use in Class I Div 2 Gps C D areas 1 1 K2 Magnetic Switch Adapter GND ALT1 ALT2 SW jumper jumper M5081 Terminal block 7 2 6 5 1 9 3 8 4 10 K2 is hermetically sealed auxiliary relay third party certified for use in Class I Div 2 Gps C D areas 1 1 SD GRD NA FV ALR MPU GRD 10 32VD...

Page 12: ...d Seat Kit 55000146 55000131 55000161 55000150 55000155 Top Works Complete Valve Less Body and Vent 55000143 55000132 55000132 65700053 65700053 65010065 65700054 65700054 65700055 65700055 55000143 55000132 Vent Bushing Assembly 55000184 55000153 Diaphragm Assembly 00007908 55050420 Pilot Diaphragm Single Dual ign negative ground up to 240 VDC Single Dual ign positive ground up to 450 VDC Single ...

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