2180E - Diaphragm Operated Gas Valve

Features

● COMPACT DESIGN

● NO ADJUSTMENTS EVER REQUIRED

● REPLACEABLE RUBBER VALVE SEATS

● OPEN-CLOSED POSITION INDICATORS

● LARGE-CAPACITY DOUBLE SEATED VALVE

● LARGE VENT PORT

 Applications

● GAS ENGINE SHUTDOWN

● STARTING AIR VALVE

● HIGH JACKET WATER TEMPERATURE

● LOW LUBRICATING OIL PRESSURE

● EXCESSIVE VIBRATION

● HIGH GAS DISCHARGE TEMPERATURE

Operation

AMOT Model 2180 valves will shut off the fuel gas and vent the manifold when used on internal combustion engine applications. When pressure is applied to the diaphragm, the vent port closes and the main ports open to admit fuel gas to the engine. When the diaphragm pressure is re-leased, a spring closes the main ports and the large vent port vents the engine intake manifold causing quick shut-down. The normal application of this model is for shutting down a gas engine in the event of a dangerous condition such as high jacket water temperature, low lubricating oil pressure, excessive vibration, high gas discharge temperature, etc. in combination with a complete AMOT Control System using AMOT sensors for monitoring the condition of the engine. Because of its capability for high pressure, this valve can also be used as a starting air valve for engines.

Steel versions of the Model 2180E Valves are equipped with a valve position indicator located under the diaphragm housing which indicates, in an extended position, that the valve is open.

Ductile iron versions of the Model 2180E Valves may be fitted with a valve position indicator located on top of the diaphragm housing which, in an extended position, shows that the valve is closed.

Specifications

......................................Ductile Iron ......................Steel

Valve Body....................Ductile Iron..............Cast Steel
Diaphragm Housing......Cast Aluminum..Pressed Steel
Valve Seats...................Buna N.........................Buna N
Std. Diaphragm, dynamic seals &
vent seal.................Buna N.........................Buna N

Valve Working Pressure Rating
125# FF flange.............................125 psi (862 kPa)
150# RF flange..........................150 psi (1033 kPa)
300# RF flange-.........................300 psi (2067 kPa)

Min. Diaphragm Pressure for full stroke
for 125 psi valve.............................20 psi (138 kPa)
for 150 psi valve.............................20 psi (138 kPa)
for 300 psi valve.............................40 psi (276 kPa)

Max. Continuous Diaphragm Pressure
.......................................................80 psi (552 kPa)

Flow Coefficient
for 2² valve....................................................Cv= 85
for 3² valve..................................................Cv= 110

Net Weight
for 2² valve, 125# flange....................45 lbs. (20 kg)
for 2² valve, 150# flange....................52 lbs. (24 kg)
for 2² valve, 300# flange....................57 lbs. (26 kg)
for 3² valve, 125# flange....................60 lbs. (27 kg)
for 3² valve, 150# flange....................75 lbs. (34 kg)
for 3² valve, 300# flange....................81 lbs. (37 kg)