Water Pumps Specifications

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Specifications

	Maximum Discharge Flow		The maximum flow the pump is designed to generate. This value is dependent on the system or pressure head the pump must enter.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
	Maximum Discharge Pressure		The maximum pressure the pump is designed to generate.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
	Discharge Size		Size of the pump discharge or outlet connection.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
	Water Temperature		Temperature of the media being pumped.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
	Horsepower		Horsepower (hp) is a unit in the foot-pound-second (fps) or English system. Used to express the rate at which mechanical energy is expended. Horsepower is the work done at the rate of 550 foot-pounds per second and it is equivalent to 745.7 watts.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

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Type of Pump

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	Bellows Pumps		The bellows pump operates on the positive displacement principle. The rotation of a motor or compressing of the bellows causes the bellows to compress for one half of the rotation, causing the pump to dispense liquid into the discharge line. During the other half of the rotation, the motion of the crank mechanism causes the bellows to expand, drawing liquid from the suction line into the bellows module. The pump uses two valves to control the flow of the liquid through the pump. Discharge pressure is maintained over the entire flow range of the pump.
	Bilge / Ballast Pumps		Pumps used onboard boats and ships to remove water from the bilge or to load or remove water for ballast.
	Borehole Pumps		Borehole pumps to be installed into wells. These can either be inclined or vertical wells. A borehole pump is a fully sealed unit. It can be fully submerged or operate in an atmosphere of potentially explosive gases. Borehole pumps range in size from a few cubic meters per hour, with as little as five meters hydraulic head, to many hundreds of cubic meters per hour, with hydraulic heads ranging up to several hundred meters. Borehole pumps are employed where water in a site is free draining to a single point within the site and an extraction flow rate of above a few cubic meters per hour is required.
	Booster Pumps		A pump used to increase pressure in a pressure line, or to pull from a storage tank and pressurize a system.
	Cantilever Pumps		Motor and seals are kept away from the pumped media. The pump has an elongated drive shaft and is submerged in the media. They have no submerged seals, bearings, bushings, or suction check valves. The cantilever or overhung shaft is supported by heavy-duty ball bearings that are located above the pumped liquid.
	Centrifugal Pumps		Centrifugal pumps use a rotating impeller to add velocity to the liquid being pumped. Within the pump, the velocity of the liquid is generated by centrifugal force. The velocity of the solution is converted with internal restrictions within the pump into pressure. This type of pump is used for liquids that are water-like in viscosity and when quantities of flow are large compared to the pressure requirements.
	Circulation Pumps		Pumps that are used to keep media circulating through the distribution or process system.
	Dewatering Pumps		Designed for clear water applications (agricultural, industrial, and residential). As a general rule, dewatering pumps are limited to a 10% solids concentration and a solids size of 1/4 the diameter of the suction inlet. For applications requiring greater solids handling capability, trash pumps should be used.
	Diaphragm Pumps		Diaphragm pumps are the most common industrial PD pumps. They are sometimes referred to as a membrane pump. A typical configuration consists of a single diaphragm, a chamber, and suction and discharge check valves to prevent backflow. The piston can either be directly coupled to the diaphragm or can force a hydraulic oil to drive the diaphragm. Variations include bellows-type diaphragms, hydraulically actuated double diaphragms, and air-operated, reciprocating double-diaphragms.
	Drum Pumps		Drum pumps are designed to transport or dispense the contents of drums, pails, or tanks. Pumps are driven by a variety of methods including hand operated, electric, pneumatic, and hydraulic driven motors. Explosive environments or flammable fluids may require an intrinsically safe actuation method.
	Fire Service Pumps		Pumps that are used for the supply of water/media for firefighting equipment.
	Fountain Pumps		Pumps that are designed to supply flow to fountains. Fountains are used for esthetic purposes, as well as aeration in residential, commercial, and industrial applications.
	Hand / Foot Pumps		Hand pumps are manually operated pumps that can be driven by hand or foot via a handle or lever. This manual external force actuates an internal mechanism, which increases pressure for moving fluids such as gas, chemicals, or water.
	Jet Pumps		A surface-mounted centrifugal pump that uses an "ejector” device to augment its suction capacity. The ejector may be down in the well, to assist the pump in overcoming the limitations of suction. (Some water is diverted back down the well, causing an increase in energy use.)
	Piston / Plunger Pumps		Piston pumps and plunger pumps are reciprocating pumps using a plunger or piston to move the media through a cylindrical chamber. They use steam power drives, pneumatic drives, hydraulic drives, or electric drives to actuate the piston or plunger.  Some piston pumps and plunger pumps are also referred to as well service or high viscosity pumps.
	Pool Pumps		Pumps that are used for circulation and filtration of pool water.  Typically supplied with features like filters and strainers.
	Propeller Pumps		Propeller pumps are generally high-speed but with low heads. They can be quite large, measuring over twelve feet in diameter and moving over 50,000 gallons per minute. Some have adjustable-pitch blades. Propeller pumps are designed for pumping large volumes at low head.
	Positive Displacement Pumps		Positive displacement pumps use a mechanical force to push liquid through and out of the pump. Rotating gears, reciprocating pistons or diaphragms are the most common types of positive displacement pumps. These pumps are suitable for higher viscosity liquids or when pressure requirements are high.
	Ram Pumps		Hydraulic ram pumps use the energy of large amounts of water falling a small height to lift a small amount of that water to a much greater height. In this way, water from a spring or stream in a valley can be pumped to a village or irrigation scheme on the hillside.  In general, a ram pump can pump approximately one tenth of the received water volume to a height ten times greater than the intake. A hydraulic ram pump is useful where the water source flows constantly and the usable fall from the water source to the pump location is at least 3 ft.
	Split Case Pumps		Split case pumps are larger pumps that are used for high flow applications. "Split case" describes the pump housing design.  The case around the impeller or pumping mechanism is comprised of two parts that bolt or assemble together. These pumps come in vertical and horizontal configurations.
	Submersible Pumps		These pumps are mounted in the tank with the solution. The motor is normally contained in an oil filled cavity that is protected for contact with the liquid by a lip or mechanical seal. They can be designed to pump large solids or grind solids to smaller sizes, transfer wastewater at large flow rates or high pressures, or just pick up water off the floor or the bottom of a tank.
	Sump Pumps		A sump pump is an automatic water pump installed in a contained compartment to remove unwanted water build-up that threatens to encroach on living or equipment space.
	Trash Pumps		Portable pump and power source typically for dewatering applications. Can handle media with high solids content.
	Triplex Pumps		A positive-displacement reciprocating pump that is configured with three plungers. Triplex pumps are the most common configuration of pump used in both drilling and well service operations. Pumps used in well service activities generally are capable of handling a wide range of fluid types, including corrosive fluids, abrasive fluids and slurries containing relatively large particulates.
	Turbine Pumps		A centrifugal pump uses diffuser vanes to transform the velocity head into pressure head. These pumps have one or more stages, each consisting of an impeller on a vertical shaft, surrounded by stationary and usually symmetrical guide vanes. Combines the energy-imparting characteristics of axial-flow and propeller pumps.
	Utility Pumps		Pumps for the general transfer of fluids.
	Well Pumps		Pumps used for the extraction of water or slurry from the ground.
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