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Air Operated Unloader Valve

$127.00

The model 907 unloading valve uses a low control pressure to shut off a high pressure line such as on the discharge of a compressor. When control pressure is released, the valve opens. A minimum of 70 psi control pressure is required to operate the valve at 6000 psi. Control pressures up to 5000 psi can be used without affecting operation or damaging a valve. One application for the valve is to unload a compressor upon shutdown. Interstage pressure could be used as the control pressure. Also works on automatic condensate drains for compressor separators, like the Coltri MCH6.

SKU

907

Details

Typical Applications

Unload his pressure interstage and discharge lines upon shut down
Automatic condensate drains for compressor separators, like the Coltri MCH6
Control of high pressure lines using low pressure air and inexpensive low pressure solenoids
Numerous other control and logic functions
Process industry control of liquids and gases
Air tank fill stations

Specifications

Type	Unloader Valve
Hand Loaded/Operated or Dome/Air Operated	Air Operated
Maximum Rated Pressure	6000 psi
Inlet Port Size	1/4 in MNPT
Outlet Port Size	1/8 in FNPT - must vent to atmospheric pressure
Control Port Size	1/4 in MNPT
Maximum Differential Pressure	6000 psi
Outlet Pressure Rating	Atmosphere
Maximum Control or Dome Pressure	5000 psi
Leakage	Bubble tight
Flow Coefficient (Cv)	0.05 (equals 0.06 in orifice)
Actuating Pressure	70 psi at 6000 psi inlet 50 psi at 4000 psi inlet 25 psi at 2000 psi inlet
Minimum Temperature	-15°F
Body Material	Anodized aluminum
Internal Materials	Brass, Stainless
Seal Materials	Kel-F, Nylon, Viton
Weight	7 oz (200 g)
Overall Length	3.5 in
Round Diameter	1.5 in
Repair Kit	907-14
Special Note	90 micron inlet filtration