Murphy M25 User's Manual
Contents
1. 2 e M5081 2 12 x 12 x 9 5 16 in 305 x 305 x Handle kit 55000096 237 mm Manual Disconnect Assembly 55000097 55000137 ka eRe ere 343 mm cosfOpen nestor sembly ssuoran ssooo70 e M5081FS 12 x 12 x 9 5 16 in 305 x 305 Sem ard Soul ET sn 5 Top Works Complete Valve Less Body and Vent 55000146 55000131 e M5081FS 2 12 x 12 x 9 5 16 in 305 x j p J 55000194 24 305 x 237 mm Vent Bushing Assembly 55000143 55000132 55000132 e MSO81FS 3 18 x 12 x 13 1 2 in 457 x Piaphragm a ee ieee Moen ial 305 x 343 mm PilotDiaphragm CEC Diode Package for Dual Magneto Ignitions 65010065 Magnetic Switch Adapter for CD Ignitions Single Dual ign negative ground up to 240 VDC 65020126 65020126 Single Dual ign positive ground up to 450 VDC 65020127 65020127 Single Dual ign negative ground up to 450 VDC 65020155 65020155 FW MURPHY CONTROL SYSTEMS amp SERVICES DIVISION COMPUTRONIC CONTROLS LTD P O Box 470248 P O Box 1819 41 43 Railway Terrace Nechells Tulsa Oklahoma 74147 USA Rosenberg Texas 77471 USA Birmingham B7 5NG UK 1 918 317 4100 Fax 1 918 317 4266 Phone 1 281 633 4500 Fax 1 281 633 4588 Phone 44 121 327 8500 Fax 44 121 327 8501 E mail sales fwmurphy com E mail sales fwmurphy com E mail info computroniccontrols com ISO 9001 INDUSTRIAL PANEL DIVISION FRANK W MURPHY LTD Web site www computroniccontrols com REGISTERED Fax 1 918 317 4124 C2. Electromechanical Fuel Shutoff Valves MV 94134B Revised 07 99 Catalog Section 55 00 02 0124 Model M5081 amp Description These fuel shutoff valves are semi automatic devices for shutdown of natural gas fueled engines The valve is opened manually and closes when the electromagnet is energized and trips the latch The valve can be closed manually by turning the valve s disconnect knob A normally energized model is available that holds the valve open elec trically and closes when the coil is de energized A vent in the valve body relieves trapped gas when the valve closes A pop out indicator button informs you when the valve is open or closed The valve s tripping power is provided by an engine ignition system or battery Models are avail able for magneto CD ignition or 12 24 V battery The M2582 is a 1 inch 25 mm valve with NPT connections It has one SPDT snap switch The valve body is made of sandcast aluminum It does not include the open close indicator button M5081 is a 2 inch 51 mm valve with 2 NPT connections It has two SPDT snap switches The valve body is available in sandcast alu minum or cast steel optional MS5081ES is the same as the M5081 but has a normally energized circuit This circuit allows the valve to be held open electrically and close by interruption of the coil s power circuit A manual trip knob is not available on this model An optional 2 in 51 mm steel flange pipe con
3. an SS 20 So 508 ge OH A HHH S 1 0 e 25 4 4 d m senna 0 250 500 750 1000 1250 1500 1750 2000 2250 2500 2750 3000 7 08 14 16 21 24 28 32 35 40 42 48 4956 56 64 63 72 70 80 77 88 84 96 Standard cubic feet per hour Cubic meters per hour in brackets M5081 and M5081FS Inches water column Ap drop across valve Millimeters water column in brackets 0 500 1000 1500 2000 3000 3500 14 16 28 32 4000 42 48 56 64 84 96 99 12 13 28 4500 5000 27 44 141 60 Standard cubic feet per hour Cubic meters per hour in brackets Internal Wiring M2582 OptionalO ResistorM See Note White f Black 4 Red Ground NOTE For grounding the ignition CD models only through the fuel valve s internal snap switch a Murphy Magnetic Switch adapter see page 4 must be used in addition to a 100 ohm 2 watt resistor supplied with valve M5081 and M5081FS M5081 M5081FS Disconnect SwitchesO Valve i Coil Igniton1 Ignition 2 Switch 2 38 Nete Switch 1 000 Ground Ground SS S O1O S S S JE JEJ AS CAO JE 5 010 0 Jumper Optional VU Resistor See Note NOTE For grounding the ignition CD models o
4. gized Model Available Options and Accessories Diode Package 65010065 The Murphy 202 V diode package is designed to allow the fuel shutoff valve to be used with dual Magneto Ignition systems Sold separately see How to Order 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 ignition systems is recommended The adapter stores energy from the CD ignition to trip the fuel valve Three models are available 65020126 For Negative Ground CD Ignitions up to 240 VDC 65020127 For Positive Ground CD Ignitions up to 450 VDC 65020155 For Negative Ground CD Ignitions 240 VDC to 450 VDC 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 10 0 N T 254 0 DSa ES D E E SSS F fg 9 0 4S YS YP AS h 7 k le Ao y 228 6 S IS SA ki NX Io f o n 8 0 AHH AE ee T n 203 2 o o f R fe A S S ey Q FA E 7A eS im BL 70 off HSS S S O D 1778 5 SSTA Ss E E SE E Bo 6 0 ey cS ag O amp S 1524 im DIE E D ae 5 0 127 0 Zs E 3 4 0 101 6 5 FS 30 76 o
5. hurch Rd Laverstock FW MURPHY INSTRUMENTS HANGZHOU CO LTD E mail ipdsales fwmurphy com Salisbury SP1 1QZ UK 77 23rd Street MURPHY POWER IGNITION Phone 44 172 241 0055 Fax 44 172 241 0088 Hangzhou Economic amp Technological Development Area Web site www murphy pi com E mail sales fwmurphy co uk Hangzhou Zhejiang 310018 China Web site www fwmurphy co uk Phone 86 571 8788 6060 Fax 86 571 8684 8878 www fwmurphy com Printed in U S A MV 94134B page 4 of 4
6. nection is available for M5081 and M508 1FS steel body models see Dimensions page 3 MURPHY gt Specifications Valve Body Sandcast aluminum painted red corrosion resistance Optional cast steel available for M5081 and M5081FS models only Valve Seat Buna N Maximum Pressure Rating e M2582 80 psig 552 kPa 5 52 bar e M5081 100 psig 689 kPa 6 89 bar e M508 1FS 100 psig 689 kPa 6 89 bar Coil Rating Intermittent duty coil type must match power source e CD ignition coil resistance 72 Q CD primary voltage 1 38 to 3 8 A e MS5081FS model Energized to run continuous duty coil coil resistance 12 Volt model 33 Q 0 36 A 24 Volt model 136 Q 0 17 A e Magneto ignition coil resistance 0 5 Q e Magneto primary voltage 7 to 5 A e Battery coil resistance 7 Q 12 or 24 VDC 1 2 to 2 4 A Wiring See Internal Wiring page 2 e M2582 Wire leads e M5081 and M5081FS Terminal blocks Snap switch Rating 5 A 480 VAC Laboratory Approval CSA listed for Class I Groups C and D Hazardous Locations 5 amps maximum intermittent duty models M5081 and M5081 CD engine ignition powered and model M5081 B 12 or 24 VAC or VDC switch con tacts rated 5 A 480 VAC maximum M25 and M50 Series Instant Response to Shut Off Signal m Positive Valve Closure m Vents Gases Trapped After Shutdown Explosion proof Models Available m Models Available for Magneto CD Ignition or 12 24 VDC m Normally Ener
7. nly through the fuel valve s internal snap switch a Murphy Magnetic Switch adapter see page 4 must be used in addition to a 100 ohm 2 watt resistor supplied with valve MV 94134B page 2 of 4 o CUE M2582 1 2 NPT Conduit Latching HandleO Connection latches valv n Manual O S vave ope DisconnectO knob trips valve 1 NPTO 2 places 6in O 1 4 NPTO mm Vent and amp Plug 3 3 32 in o lt 79 mm gt lt 5 1 2 in 140 mm Steel Flanged Option 3 available on M5081 and M5081 FS steel body configurations only 3 5 8 in O 92 mm O diameter 14 25 64 to 14 29 64 in Q______ 366 367 mm 3 4 in 19 mm dia O 4 places each endO i 0 2 plases 1508 RE eal spaced on al 3 4 in mm a face pipe flangeO Be AA Oo M5081 and M5081FS Manual Disconnect knob trips valveO M5081 only 1 2NPTO ConduitO py o Latching HandleO latches valve open 1 2 NPT ConduitO Connection 2 ples lt 1 3 8 in 35 mm Valve O Open Close IndicatorO ButtonO o ry 3 7 16 in O 87 mm 9 3 8 in 238 mm 3 in 76 mm 7 3 4 in 197 mm gt MV 94134B page 3 of 4 How to Order to Order To order your valve use the diagram below to specify your model and option
8. s Accessories Example M5081 A 2 Specify part number when ordering Magnetic Switch Adapter Base Models T T 65020126 For Negative Ground CD Ignitions M2582 up to 240 VDC M5081 Body Material 65020127 For Positive Ground M5081FS en erate PET CD Ignitions up to 450 VDC ae Pag pont 65020155 For Negative Ground 3 Steel body with steel flange mounting M5081 and M5081FS only CD Ignitions 240 VDC to 450 VDC Trip Coil x A Magneto ignition Diode Package B Battery 65010065 For use with dual C CD ignition Magneto Ignition systems Coil for M5081FS model only A 12 VDC B 24 VDC Shipping Information Service Parts Shipping Weights Specify part number when ordering e M2582 5 lbs 8 oz 2 49 kg ee ee ee a 55000128 55000126 M5081 2 40 Ibs 18 14 kg CD Ignition 55000129 55000127 e M5081 3 56 Ibs 25 40 kg Magneto Ignition 55000094 55000080 e M5081FS 14 Ibs amp OZ 6 58 kg ES Coil Assembly e M508 1FS 2 40 lbs 18 14 kg 12 VDC 55000158 e M508 1FS 3 56 Ibs 25 40 kg 24 VDC 55000159 a Latch Block Assembly Shipping Dimensions Latch block assembly 55000095 55000074 e M2582 8 x 8 x 7 in 203 x 203 x 178 mm Latch block switch and coil assembly 55000144 e M5081 12 x 12 x 9 5 16 in 305 x 305 x Latch block switch and mounting bracket assembly 55000118 Handle and Latch Kit 237 mm a Handle and latch kit 55000102 5500010
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