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Specialty Valves. Air Release, Metering Ball Valves & Gauge Isolators


air release valvesAir Release (Venting) Valves AR SeriesAir Release (venting) Valve allow gases to escape from un pressurized pipe lines. As the un pressurized air vents, liquid rises to the float (an inverted cup), which lifts the float up against the seat, holding liquid pressure. The float will not release until the pressure on the inlet side of the valve is equal to the outlet pressure of the valve (normally atmospheric).
PVC Air Release (Venting) Valves 1/2in to 1in
PVC Air Release Valves 1-1/4in to 3in



For AR Series Air Release Valve


metering ball valveMetering Ball ValvesSM Series ball valves are designed for exact dosing of neutral and aggressive clean fluids. 1/2in and 3/4in sizes; PVC or Polypropylene bodies.
Plastic Metering Ball Valves 1/2in 3/4in and 1in



For SM Series Metering Ball Valves


Diaphragm Valves, Pneumatic and Manually Operated. 700 Series plastic diaphragm valves with PVC, CPVC, PP and PVDF bodies. Diaphragms in EPDM, Viton or Teflon. A range of sizes and ends from 1/2in to 4in is available. Call or sales@finemech.com for specifications, availablity and prices


gauge isolator SG Series Gauge Isolators Gauge Isolators SG Series Gauge Isolators allow inexpensive pressure gauges, or any other pressure instrument to be used in corrosive services. The upper chamber (gauge side) is filled with a stable fluid such as glycerine‡. A diaphragm separates it from the lower chamber which receives the media under pressure. The 1/2" gauge connection allows use of the popular 4" and 4-1/2" diameter gauges.





For SG Series Gauge Isolators