05 Water Pressure Systems INTRODUCTION Pressure Controlled Diaphragm Pumps Pressure controlled diaphragm pumps provide boat owners with a fresh water system that is as easy to use as their domestic water supply – with the versatility to offer full ow or a trickle. The pump is controlled by a switch which senses the pressure drop when a faucet is opened and activates the pump; it turns off when the system pressure builds to a pre-set limit as the faucet is closed. This system allows any type of faucet or shower valve to be tted, from ³⁄8” (10mm) bore for minimum water use to ½” (13mm) bore for maximum ow. Choosing the pump for your needs is simple – just check your system size and the number of outlets you need to operate simultaneously and select the appropriate pump. Diaphragm pumps are self-priming, quiet in operation and can run dry for extended periods. It is always best to turn the pump off and then open a tap to de-pressurize the system when you are not using the boat as this will prolong pump life. Accumulator Tanks Accumulator tanks hold a reservoir of air and water down stream from the pump. The air acts as a cushion, absorbing pump and pressure uctuations, smoothing the ow and making the system quieter. Accumulators allow the pump to reach shut-off pressure more smoothly which reduces the on/off cycle which gives better control of hot water delivery. Our accumulator tanks all have a bladder that separates water from air. The bladder is prepressurised but may need ne tuning when installed to give the most efcient performance. One of the advantages of an accumulator tank is that they can dispense up to half of their capacity of water even when the pump is switched off. So the bigger the reservoir, the more water you have available without having to switch the pump on helping you wash your hands or clean your teeth without noise. Water Pressure Regulators Inlet water regulators are designed to protect your boat water system plumbing and xtures from the possible high pressure of municipal water systems. Regulation is controlled at all ow rates by a pre-set spring and removable strainer traps debris. Both inline portable and permanent ush mount models are available in our new line of diaphragm sealed regulators.

053 It probably goes without saying that many Jabsco pumps have more than one possible application. Sometimes it is a simple matter of installing the standard product in the different application. Sometimes Jabsco needs to develop the standard product to meet the particular needs of the different application. Washdown Pumps Washdown pumps are a development of our Water Pressure System pumps. Higher shut-off pressure switches prevent on/off cycling while salt water compatible trigger nozzles let you blast off mud and dirt, and then rinse down. Pumpgard™ Strainers Inlet Strainers are an essential...

05 Water Pressure Systems AuTOMATIC PRESSuRE COnTROLLED PuMPS Miniature multi outlet water pressure pump serves 1 or 2 ³⁄8” (10mm) outlets at any one time. Models include both automatic and manual pumps. SHUT-OFF PRESSURE Connections for 3/8'' (10mm) ID hose and slip-on ½'' (13mm) bushings 6.4'' long x 3.5'' wide x 2.3'' high (16cm x 9cm x 6cm) 1.3 lb (0.6 kg). • Dual diaphragm operation. • Thermal overload protection automatically stops motor should it overheat due to overload, with auto re-start feature. • Diaphragm design allows dry running. 12 volt DC model, fuse 4 amp, automatic. • Pressure...

PAR-Max 3.5 Water System Pump 3 YEARS WARRANTY • Self priming up to 3m (10ft). This conventional pressure switch controlled pump enjoys the same pulsation free 3 chamber diaphragm design as our PAR-Max 2.9 & 1.9 but incorporates a heavy duty motor, giving higher flows and long life for such a small footprint. Like all Jabsco water pressure system pumps it is inherently quiet, self-priming and can run dry without damage. Quick connect fittings are included. The high pressure capability of the new Jabsco Par-Max Plus Series water pressure pumps available in 4.0, 5.0, and 6.0 gPM models provide...

05 Water Pressure Systems AuTOMATIC PRESSuRE COnTROLLED PuMPS Sensor Max™ VSD Constant Pressure Water System Pumps Pressure sensor controlled, multi-outlet water pressure pumps, with variable speed drive, serving 1-5 outlets. Motor speed is electronically controlled to maintain steady flow and constant pressure. Sensor Max™ VSD accepts from 10 to 29 volt DC for use with 12 or 24 volt DC power. Amp draw reduces as flow reduces to conserve energy, ranging from less than 1 amp to a maximum of 15 amps. • unique constant water pressure – nO pressure switch. • Conserves battery power – uses lower amps...

V-FLO 5.0 Water Pressure Pump The new variable flow, constant water pressure pump now featuring the revolutionary new DiMOnD technology, designed to automatically diagnose and monitor all aspects of your pump’s and water pressure system performance to prevent system failure. V-Flo is powered by a new variable speed drive that delivers the exact amount of water flow needed to perform the variety of on-board delivery tasks. SHUT-OFF PRESSURE 6.12 inches wide x 4.75 inches high x 9.88 inches long. (15.6cm x 12cm x 25.1cm). • Constant water pressure. • Learns the boat’s water pressure system to improve...

05 Water Pressure Systems AuTOMATIC PRESSuRE COnTROLLED PuMPS Dual Max VSD Water System 3 YEARS WARRANTY 31765-0092 12 volt DC model. The Dual Max VSD combines a smooth flowing VSD Water System Pump with a PAR-Max 4 to provide up to 8 gallons per minute when demand increases. The VSD Pump with its variable speed motor provides smooth even flow as needed for several outlets. If demand exceeds the VSD’s normal operating range the PAR-Max 4 kicks in to add enough additional flow to accommodate as many as 7 outlets. • unique constant water pressure. For service and spare parts listing see page 222....