SCULLY Mark IV Flow Switch Angle Check Valve 06817-B

Scully Mark IV Flow Switch Angle Check Valve The SCULMATIC Mark IV flow sensing switch activates SCULMATIC air throttle actuators to increase the truck's engine from idle to full pumping speed when delivery nozzle is opened and flow begins. The SCULMATIC MK IV is a discharge check valve when installed between the meter and hose reel. Features Controlled pumping rate from the nozzle permits high pumping speeds and delivery control Check valve, as required by weights and measures Combined-unit flow control switch and check valve Reduces hose pressure at idled speed Eliminates damaging surge and shock pressures Inlet/Outlet: 2 in. Female NPT x 2 in. Grooved Prevents hose reel movement Specifications 1/4" gauge port 20 amp normally open electrical switch (not for gasoline use) Less than 7 PSI pressure drop at 100 GPM 3 PSI cracking pressure at zero flow Viton poppet seal No gasoline use