Unloader (F70U)

Unloader Valve (Manual / Solenoid)

Unloader valves suitable for continuous cycling applications, gas or liquid. Features a unique piston seal design. Ideal for batch processing where rugged, high cycle service and minimum maintenance is required. Can be supplied with control valve (electric, pneumatic, hydraulic), plus other accessories. Excellent choice for emergency shutdown (ESD) applications.

FEATURES

Electric or pneumatic control (remote or local operation)
Soft seated (Elastomer)
2-way or 3-way solenoid
Optional filter & isolation valve
Full or reduced bore orifice
Bubble tight seating and re-seating
Integral flange design
Carbon steel body with corrosion resistant trim

APPLICATIONS

Emergency shutdown (ESD)
High cycle rates
Long service life
Explosion-proof controls
Minimal installation & maintenance

Service Envelope

Connection Sizes Custom sizes & dual outlet bodies available on request	1.5” x 2” - 12” x 16” (38mm x 50mm - 300mm x 400 mm)
Set Pressure Ranges See F70U Catalog for orifice specific ratings	5 – 285 psig (.35 – 19.6 barg)
Temperature Ranges	-65 to 400°F (-54 to 204°C)
Orifice Area Range	1.770 – 111.87 in² (1142 – 72174 mm²)
End Connections Custom types available on request	Standard: Female NPT (1.5” x 2” size only) Integral ASME RF Flanged (150# inlet/outlet)
Materials of Construction Custom available for service or on request	Carbon Steel w/ aluminum trim Aluminum (1.5” x 2” size only)
Seat Materials Custom available for service or on request	Elastomer: Buna-N, Viton® (FKM) or equal, EPR/EPDM