murphy logo


 

Valves



Many of FW Murphy's valves are designed for harsh gas compressor scrubber applications where they survive constant use in corrosive environments. Models include fuel shutoff valves for shutdown of natural gas-fueled engines, and pneumatically controlled fuel shutoff valves and dump valves, which open and close automatically or semi-automatically.




Fuel Valves

 

 

M25/M50 Series

 

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 disconnect knob.

The M2582 is a 1-inch (25 mm) valve with one NPT connection and one SPDT snap-switch. The valve body is made of sandcast aluminum. It does not include the open/close indicator button.

The M5081 is a 2-inch (51 mm) valve with two NPT connections and two SPDT snap-switches. The valve body is available in sandcast aluminum or cast steel (optional).

 

   •  Instant response to shut off signal

   •  Positive valve closure

   •  Vents gases trapped after shutdown

   •  Explosion-proof models available

   •  Available for magneto, CD ignition or 12/24 VDC

   •  Normally energized model available

 

Click here to see product specifications and current literature.

 

 

M2582-P/M5180-P

 

The M2582-P and M5180-P are pneumatically controlled fuel shutoff valves that open and close automatically or semi-automatically. The pneumatic control pressure can be air, oil or gas.

The M2582-P is for 1-inch (25 mm) gas lines. It automatically opens at 5 psi (35kPa) [0.34 bar] and fully opens the seat at 15 psi (103 kPa) [1.02 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 11 psi (17kPa) [.17 bar].

The M5180-P is for 2-inch (52 mm) gas lines. It automatically opens at 5 psi (35kPa) [0.34 bar] and fully opens the seat at 15 psi (21 kPa) [.21 bar]. The valve can be manually opened with the lever and latch against inlet pressure of 100 psi (689 kPa) [6.89 bar]. The latch will release after pilot pressure reaches 11 psi (17kPa) [.17 bar].

 

Click here to see product specifications and current literature.

 

 


Liquid Dump Valves

 

 

DVU Series Dump Valves

 

The DVU Series are pneumatically controlled dump valves designed for gas compressor scrubbers. The DVU Series can be used to dump any liquids compatible with its materials of construction.

The valves open and close automatically by pneumatic control from a Murphy level controller and dump valve operator. Diaphragm actuated, the DVU series dump valves operate at 30–70 psi (207–483 kPa) [2.07–4.83 bar] and up to 2000 psi (13.8 MPa) [138 bar] vessel pressure (depending on the model).

 

   •  For separators/scrubbers to 2000 psi (13.8 MPa) [138 bar] working pressure

   •  Hex union allows plug and seat replacement without piping removal

   •  Compatible with Murphy level controls

   •  Soft seat valve

   •  Manual valve operator

 

Click here to see product specifications and current literature.

 

 

Scrubber Level System

 

The SLS system provides for liquid control in gas scrubber applications, by dumping liquids to drain and protecting compressors with a high liquid level switch. Wetted metal parts are made to survive constant use in corrosive environments.

You save money by purchasing the SLS system which includes the following: (1) LS200 High Level Shutdown Switch, (2) DVU Series Dump Valve, (3) Filter Regulator with MurphyGage®, and (4) an LS200NDVOR Pneumatic Level Control.

 

   •  Designed for harsh gas compressor scrubber applications

   •  304 stainless steel float operates in 0.63 specific gravity for heavier fluids

   •  Rated for up to 2000 psi (13.8 MPa) [138 bar] working pressure

   •  Electric and pneumatic models available

   •  Improved design provides better snap action and dependability

   •  Hex union allow plug and seat replacement without piping removal

   •  Manual valve operator

 

Click here to see product specifications and current literature.