Key aspects and components of the PWP-400 series Potable Water Source Pumps:
No hand tools are required for operation pump system
Source Pumps are compliant with the Federal Lead-Free Plumbing Bill
(On January 4, 2014, Federal Bill S.3874, The Reduction of Lead in Drinking Water Act went into effect. The Federal bill addresses a public health and safety issue, and is an amendment to the Safe Drinking Water Act. The bill dramatically reduces the amount of lead content from 8% to 0.25% weighted average with respect to the wetted surfaces of pipe, pipe fittings, plumbing fittings or fixtures installed on potable water systems anticipated for human consumption.)
Source Pump has capability of maintaining constant pressure while providing variable flow.
Source Pumps have a patented plumbing design that has the unique ability to allow needed "on demand" water volume. The pump system has the integrated ability to automatically sense and maintains a constant 50 PSI on the output manifold. It is able to adjust constantly to meet the needed water volume demand while maintaining a constant pressure. This capability to regulate the output volume from 1 GPM to as high as 40 GPM without stopping the electric motor on the pump, dramatically increases the life expectancy of the pump motor as well as the contacts in the pressure switch. This high flow capability allows the pump system to be the water supply to numerous applications and dispensing points all at the same time. This capability has not been offered before with previous constant displacement pump systems. The pump system is also equipped with a flow bypass valve. This allows for operating personnel to select from unregulated pump output (essentially, operating the same as a conventional positive displacement pump) to a fully regulated automatic pressure sensing output. This valve can be metered anywhere in between these two positions to meet various output flow needs.
Source Pumps have the ability clean debris from filter screens without shutting pump down or removing screens.
The pump systems are equipped with two filtering "Y" strainers. The input manifold has a 1 1/4" "Y" strainer and the output manifold has a 1" "Y" strainer. Both strainers have the capability of being easily cleaned while the pump is turned on and/or in use. This process is extremely easy and requires no tools. Simply open ball valves on the screen side of the "Y" strainers and water is forced backwards through the screen directing the debris from screens through plumbing onto the ground at the bottom of the pump system.
Freeze resistant ball valves
All four custom proprietary ball valves have stainless steel balls and are specifically designed and CNC machined for this source pump system. These valves have undergone rigorous testing and have proven to be very resistant to freeze damage when pump system is not correctly drained during storage.
Pressure switch/controls are located in a sealed NEMA 4 enclosure.
Pressure switch is housed in a sealed NEMA 4 enclosure to help protect open wiring from exposure to the elements. The cover to the enclosure is made of clear LEXAN clear polycarbonate, making the controls visible to the operator without needing to access enclosure. Enclosure is held shut by hand operated toggles and no hand tools are required to open.
Pressure gauge is a high-quality glycerin filled gage to ensure long life and durability.
Pump motor is a Premium Efficiency class IE3 (3 HP, three-phase, 208-230V)
All hardware and fittings are constructed from either no lead brass or stainless steal.
Light weight robust pump system frame.
Tubular aluminum frame is designed to be extremely rugged and light weight as well as dimensionally designed to fit in and out of doorways on expandable shelter systems. They are also designed to be packed out and transported in shelter systems single-stall showers. Frame is powder coated with durable UV resistant Coating.
Pump systems output manifold is designed with three (3) 1 1/2” diameter standard stainless steel cam-lock fittings with individual freeze resistant isolation valves. This allows for the flexibility to provide potable water to multiple user/ applications at the same time, giving each output the ability to connect/disconnect or turn on/off without disrupting service to the other outputs connected. (Note- Tethered aluminum dust caps are located on all cam-lock fittings.)
Designed for quick and easy winterization.
Blowout tool is provided and tethered to pump system. Tool is equipped with standard military air compressor quick couple male fitting. (No hand tools required for use.)
Heavy duty 19 foot long three phase power cable with Hubble receptacle is provided with strain relief and storage strap.
High quality pressure switch with built-in low pressure cut-off option.
This option helps protect the pump and motor in the event the water supply to the source pump is depleted and/or insufficient.
All PWP–400 series pumps are heated recirculation system ready systems.
The newly patented Heated Recirculation System is a new option that is exclusively offered to be used in conjunction with the PWP-400 series pumps. This heated recirculation system gives very reliable freeze protection to the entire pump system in even the most extreme low temperatures. The Heated Recirculation System can be added to the source pump from the factory by selecting the option at the time of order, or, it can be sold separately as an easy bolt on kit (all required parts are supplied in the kit).
The Heated Recirculation System is manufactured with high quality and reliable components. The primary system is composed of; a brushless TACO 3 GPM pump designed to run heated water 24/7, a 35 degree Fahrenheit "on", 50 degree Fahrenheit "off" thermal couple, electric solenoid valve, pressure sensing switch, 220v relay, and a 500 watt integrated heating element.
The system automatically turns on when conditions are appropriate and circulates heated water through the entire pump system in order to prevent the water from freezing and causing damage to the pump system. The system is activated when; the main pump motor is NOT currently running, when the internal water pressure in the pump system is above 40psi, and when the thermal couple is closed because of cold internal water temperature.
The PWP-400-1-HRC Potable Water Source Pump System with the Heated Recirculation option has been undergoing field and laboratory testing at the US Army Natick Soldier System Center. The pump system has been tested and monitored in the testing freezer at negative 15 degrees Fahrenheit for two weeks with no other source of freeze protection, without failure. It has also been undergoing field testing at Fort Devens in Massachusetts.