L740FCN-774VR-QR
Pressure Regulator Fixture, Fume Hood Mounted
Application: Point-of-use regulation of high purity gases for installation on fume hoods. Used for compressed air and inert high purity gases, including nitrogen, helium, argon and oxygen.
Mounting: Pressure regulator/gauge assembly is surface mounted on front face of fume hood. Regulator assembly, valve and outlet fitting are piped together behind face of hood (pipe and fittings are not supplied).
Regulator: Non-relieving type with brass body and neoprene diaphragm. Regulator assembly is furnished with 1/4” IPS mounting shanks, locknuts and washers.
Inlet Pressure Range: 5-300 PSI.
Outlet Pressure Range: 5-125 PSI.
Valve: Panel mounted fine control needle valve for precise flow control. Valve has forged brass body, floating tapered stainless steel needle and replaceable stainless steel seat. Valve has 3/8” NPT female inlet and outlet.
Outlet Fitting: Outlet fitting for installation inside hood has removable quick connect with 1/4” NPT male plug.
Cleaning: Fixture is specially cleaned, lubricated, assembled and packaged for use with high purity gases, including oxygen.
Quality Assurance: Regulator assembly, valve and outlet are fully assembled and factory tested prior to shipment.
Additional Model
L740FCN-774VR-MR Same as above except with 1/4” OD compression fitting outlet inside fume hood.
Note: For regulator assembly with pressure gauge on left hand side, order “774VL”. This fixture may also be used with the L739FCN fine control valve for angle front fume hoods. See page 36 for further information on remote control valves.

