Parker A-1


Valve, Expansion

A-1 51866
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$104.24+ 4 Business Day Shipping $7.15


ItemConstant Pressure Expansion Valve
Nominal Capacity (Tons)0.88 to 4.24
Equalizer TypeExternal
ConnectionInlet SAE Flare Angle / Outlet (F)NPT
Connector Inlet (In.)1/4
Connector Outlet (In.)1/4
Parker Model NumberA-1
ControlUsed as Low Load Protection Device in Hot Gas Bypass Systems, Maintains Constant Evaporator Pressure Under all Load Conditions
Balanced Port DesignNo
SuperheatExternally Adjustable
Adjustable Range5"Hg vacuum to 90 psig
Not For Use WithAmmonia
Weight 0.450000


Automatic Constant Pressure Expansion Valve, Connector Inlet 1/4 Inch SAE Flare, Connector Outlet 1/4 Inch NPTF

Thermostatic Expansion Valves
  • Capacity is at ARI standard 750-70; at 10 F liquid subcooling. Not for use with ammonia.

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