21 Series DC Diaphragm Pump 12V/24V 2.0-4.3LPM 17-80PSI

12V/24V 2.0-4.3LPM 17-80PSI

The 21 Series Pumps are compact and designed for a wide range of applications including liquid transfer, spraying, circulation, filtration and dispensing. The 21-series of diaphragm pumps are self-priming and can be run dry without harm. It provides up to 1.2 gallons per minute. Miniature multi outlet water pressure pump serves 1 or 2 3/8” (10 mm) outlets at any one time. This compact automatic demand water system pump has a built-in pressure switch, which automatically starts and stops the pump when faucet is opened and closed.

Specifications|
Parameters
|Manual

FEATURES & BENEFITS

- Adjustable pressure switch from 17-80psi for OEM when needed.

- Quite operation. Motor sounds not louder than your room fan running.

- Hose connections with multiple fittings allow connection to any outlet.

- Rubber feet for noise reduction for vibration.

- Compact design and heavy-duty demand switch.

- Can run dry.

TYPICAL APPLICATIONS

Marine, RV, Agricultural Spraying, General Industrial, Fitration, Beverage Processing, Solar Water System, etc.

PUMP
Type	2 Chamber positive displacement diaphragm pump, self priming, capable of being run dry
Control Type	Pressure switch
Max Recommended Temperature	60° C (140° F)
Priming Capabilities	4 feet (1.2 m) suction lift
Re-start Pressure	Shut-off Pressure 35 PSI: 25 PSI ±5 PSI (±0.3 bar) Shut-off Pressure 40 PSI: 30 PSI ±5 PSI (±0.3 bar) Shut-offPressure 70 PSI: 56 PSI ±5 PSI (±0.3 bar)
Inlet/Outlet Ports	3/8" (10 mm) hose barb
Weight	1.3 lbs (0.6 kg)

MOTOR
Leads	18 AWG, 14" (35 cm) long with 2-Pin connector / Leads
Duty Cycle	Intermittent
Max.Amp Draw	4.5 A
Fuse	6.8 A

STANDARD PUMP CONFIGURATIONS

Model	Voltage	Open Flow （GPM/LPM）	Shut-off Pressure （PSI/BAR)	Amps	Control Type	Valves	Diaphragm	Ports	Wire Connections
SFDP1-010-040-21	12V	1.0/3.8	40/2.8	4.0 MAX	Switch	Viton	Santoprene	3/8"Barb	2-Pin/Leads
SFDP2-010-040-21	24V	1.0/3.8	40/2.8	2.0 MAX	Switch	Viton	Santoprene	3/8"Barb	2-Pin/Leads
SFDP1-011-070-21	12V	1.1/4.0	70/4.8	4.0 MAX	Switch	Viton	Santoprene	3/8"Barb	2-Pin/Leads
SFDP2-011-070-21	24V	1.1/4.0	70/4.8	2.0 MAX	Switch	Viton	Santoprene	3/8"Barb	2-Pin/Leads
SFDP1-012-035-21	12V	1.2/4.3	35/2.4	4.0 MAX	Switch	Viton	Santoprene	3/8"Barb	2-Pin/Leads
SFDP2-012-035-21	24V	1.2/4.3	35/2.4	2.0 MAX	Switch	Viton	Santoprene	3/8"Barb	2-Pin/Leads

Consult factory for other available models

OEM/ODM service: Pressure from 17 psi to 80 psi, open flow from 2.0 lpm to 4.3 lpm. Material can adjust according to your requirement.

PERFORMANCE

1.0 GPM

PRESSURE		FLOW		CURRENT
PSI	BAR	GPM	LPM	AMPS
0	0	1.09	4.14	1.56
10	0.69	0.84	3.28	1.89
20	1.38	0.75	2.84	2.25
30	2.07	0.69	2.60	2.6
40	2.72	0	0	2.96

View other parameter tables / graphs, Please click here

HEAT RISE

DIMENSIONS

PRODUCT DETAILS

SHIPPING INFORMATION


	Unit Pump Weight	1.35 lbs（0.61 kg）
	Selling Unit Size (L x W x H)	7.20" x 4.17" x 2.60" （18.3 x 10.6 x 6.5 cm）
	Selling Unit Weight	1.51 lbs（0.69 kg）
	Master Carton Size (L x W x H)	15.43" x 13.19" x 13.58" (39.2 x 33.5 x 34.5 cm)
	Master Carton Qty	30 pcs
	Master Carton Weight	45.82 lbs (20.78 kg)

CAUTION

Please make sure correct wiring, otherwise it will damage the pump (The red cable should be connected with the positive pole, and the black cable should be connected to the negative pole).

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