Demand Pumps

Demand Pumps

Flojet Demand Pumps are designed for a wide range of applications and are constructed from materials suitable for handling a broad range of products. The Flojet demand diaphragm pumps are self-priming. Demand Operation is considered an “intermittent duty” application. Running the pump for extended period of time will shorten the life of the pump and may result in immediate pump failure. The Flojet demand pumps are not recommended for continuous duty service due to limited motor brush life. The higher the duty cycle the shorter the expected life of the pump. Typical pump uses are liquid transfer, spraying, cooling, circulation, filtration and dispensing. DO NOT USE TO PUMP FLAMMABLE FLUIDS, GASOLINE, KEROSENE FUEL OIL, ETC. Suitability for the application should be determined by actual use and is the full responsibility of the customer. No warranty, expressed or implied, can be extended by the equipment manufacturer where failure is caused by chemical attack on pump materials. Temperature, aeration, concentration, and other factors may change the effect of the specific fluid on the pump materials. Data shown is based on the results at ambient temperatures. Only pumps with Santoprene / EPDM elastomers are recommended for potable water

FLOJET BW4000A SPECIFICATIONS

Model	GPM	Max PSI	Outlet	Tubing	Volts	Amps	Cycle	Cord	Dimensions (H x W x D)	Wt (lbs)
BW4000A	1.09	40	1/4"	20'	115	0.5	50/60	6'	2.7" x 5.4" x 8.5"	4.5

The BW4000A replaces the discontinued BW1000A

Flojet DC Demand Pumps Specification Comparison Table

Model	Max. GPM	Max. PSI	Volts	Amps	Diaphragm	Check Valves	PSI	Connection	Cord
LF122202D	1	35	12 DC	4	Viton	Santoprene	25-35	3/8” Barb	0'
D3131B5011A	1.6	60	12 DC	7.0	Buna	Buna	60	3/8” FNPT	0'
D3131H5011A	1.6	60	12 DC	7.0	Santoprene	EDPM	40-60	3/8” FNPT	0'
D21X005	2.1	60	12 DC	10.0	Santoprene	Viton	60	3/8” FNPT	0'
2100-122	2.0	60	12 DC	7.0	Viton	Viton	40-60	3/8” FNPT	0'
D3135B7011A	2.0	100	12 DC	9.0	Buna	Buna	100	3/8” FNPT	0'
4300-142A	3.7	45	12 DC	9.0	Santoprene	Buna	30-45	1/2” Barb	0'
4300-143A	4.9	45	12 DC	13.0	Santoprene	Buna	30-45	3/4” Barb	0'
2840-100A	3.0	40	12 DC	9.0	Santoprene	EPDM	27-40	3/4” Barb	0'
D3835B5011A	2.0	60	115	0.6	Buna	Buna	60	3/8” FNPT	6'
D3835B7011A	2.0	100	115	0.8	Buna	Buna	100	3/8” FNPT	6'
4300-545A	3.8	45	115	1.5	Santoprene	EPDM	30-45	1/2" Barb	6'
4300-501A *	3.8	45	115	1.5	Santoprene	Viton	30-45	3/4” Barb	0'
4300-525A	5.0	45	115	1.5	Santoprene	Viton	30-45	3/4” Barb	6'
2840-000	3.0	40	115	1.5	Santoprene	EPDM	27-40	3/4” Barb	6'

* The 4300-501A is the same as the 4300-525A but less cord * All but 2100-122 and 2100-132 have a bypass.

• The polypropylene pump housing material is resistant to a wide range of chemicals and is generally suitable for most applications. Five elastomer materials are available (all suitable for pumping water):
• EPDM: Resistance to a wide range of chemicals for general purpose use.
• Santoprene: EPDM and Santoprene have similar chemical characteristics. Where data is not shown for Santoprene, the data for EPDM may be used as a guide.
• Buna N: Generally suitable for oils, oil based liquids and oil emulsions.
• Geolast: suitable for light fraction hydrocarbons and solvents. Buna and Geolast have similar chemical characteristics. Where data is not shown for Geolast, the data for Buna may be used as a guide.
• Viton: Generally resistant to many acids and some solvents, has good high temperature properties up to 180º F but poor low temperatures performance below 50º.