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Pneu-Trol pressure compensated constant flow regulator valves are exceptionally accurate in maintaining constant flow with pressures up to 3000 psi (207 bar). These adjustable valves, while under pressure, allow infinite output flow adjustment within a specified flow range independent of inlet pressure variations. An internal check valve to bypass the control orifice provides unrestricted free reverse flow. The compensating action of these valves results from an adjustable orifice at the inlet end and a series of variable orifices at the outlet end. Flow through the variable orifices is controlled by a spring and piston. These elements work together to regulate hydraulic flow within the determined rates. Flows are controlled within +/-15% up to 1.5 gpm (5.7 lpm) and +/- 10% at higher flow up to 15.0 gpm (56.8 lpm). Regulation is virtually unaffected by temperature changes from 60 deg F (16 deg C) to 180 deg F (82 deg C). At a temperature differential of 70 deg F (21 deg C) flow variation would be approximately +/-2% max, while at temperature differential of 120 deg F (49 deg C) the flow variation would be approximately +/- 4% max.
Maintains accurate constant flow at pressures up to 3000 psi
Lock nut to maintain flow setting
Free reverse flow
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