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Aqua Jet Water Pressure Systems - Johnson Pump

Aqua Jet Water Pressure Systems - Johnson Pump

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English<strong>Water</strong> <strong>Pressure</strong> <strong>Systems</strong> mounted to DC motor 12/24 VTypical applicationsThe WPS pump is a five chamber positivedisplacement diaphragm pump.This pump is the ideal choice for pressurizingwater in a closed system suchas that found in a boat or in a recreationalvehicle.It can easily build the pressure requiredfor a pressurized water supply system.Features• Quiet operation• Smooth flowing• Self priming• Integrated pressure switch turnspump on and off automatically whentap is opened and closed• Built-in by-pass valve which reducesthe need for storage tank (only WPS3.5)• Dry running without damage• Low power consumption• Quick disconnect fittingsWorking principleAs the pump runs, pressure is increaseduntil it reaches the pre-defined pressurelevel, see p. 37. When the pre-definedpressure level is reached the integratedpressure switch automatically shuts thepump off.The pump is equipped with positivelychecking outlet valves which ensurethat the pressure is maintained after thepump shuts off.When water is demanded (at the faucet,shower et.c.) the pressure decreases.After a moderate drop in pressure, theintegrated pressure switch automaticallyturns the pump back on.Due to it’s durable construction andthoughtful design, the pump will providemany years of service.Important! The pressure setting of thispump is made at the factory. Warrantyinvalidated by pressure switch interference.Technical descriptionBody: Nylon/PolypropyleneValve housing: Polypropylene/PolyamideValves: Santoprene/EPDMDiaphragm: SantopreneConnection: 3/8" BSP, 1/2" hose(ø 13 mm) and1/2" BSP, 3/4" hose(ø 18 mm) orUS 3/8" NPT, 1/2"hose (ø 13 mm) andUS 1/2" NPT, 3/4"hose (ø 18 mm)Max. liquidtemperature: Max +50°C/+120°FFasteners: Stainless steelMax. suction lift: WPS 2.9 – 2 m/6.5 ftWPS 3.5 – 2 m/6.5 ftWPS 4.0 – 2 m/6.5 ftWPS 5.2 – 2,5 m/8.2 ftCut in pressure: see page 37Cut-off pressure: see page 37(Other pressure settings see page 37)Duty cycle: Intermittent,max 20 minMotor: WPS 2.9 – 85 WWPS 3.5 – 85 WWPS 4.0 – 100 WWPS 5.2 – 150 W12/24 V DCwith built in thermalprotectionThe motor is ignition protected accordingto ISO 8846 (Small craft – Electricaldevices – Protection against ignitionof surrounding flammable gases).Type designation(See page 37)8 Original instructions

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