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.
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Type |
2 Chamber positive displacement diaphragm |
|
Control Type |
Pressure switch |
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Max Recommended Temperature |
60° C (140° F) |
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Priming Capabilities |
4 feet (1.2 m) suction lift |
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Re-start Pressure |
Shut-off Pressure 35 PSI: 25 PSI ±5 PSI (±0.3 bar) |
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Inlet/Outlet Ports |
3/8" (10 mm) hose barb |
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Weight |
1.3 lbs (0.6 kg) |
|
Leads |
18 AWG, 14" (35 cm) long with 2-Pin connector / Leads |
|
Duty Cycle |
Intermittent |
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Max.Amp Draw |
4.5 A |
|
Fuse |
6.8 A |
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Model |
Voltage |
Open flow (GPM/LPM) |
Max draw |
Shut-off pressure (PSI / BAR) |
Ports |
Wire connections |
|
NMDP21-G10-40-12 |
12V |
1.0 / 3.8 |
4A |
40 / 2.8 |
3/8"Barb |
2-pin / Lead |
|
NMDP21-G10-40-24 |
24V |
1.0 / 3.8 |
2A |
40 / 2.8 |
3/8"Barb |
2-pin / Lead |
|
NMDP21-G11-70-12 |
12V |
1.1 / 4.0 |
4A |
70 / 4.8 |
3/8"Barb |
2-pin / Lead |
|
NMDP21-G11-70-24 |
24V |
1.1 / 4.0 |
2A |
70 / 4.8 |
3/8"Barb |
2-pin / Lead |
|
NMDP21-G12-35-12 |
12V |
1.2 / 4.3 |
4A |
45 / 3.1 |
3/8"Barb |
2-pin / Lead |
|
NMDP21-G12-35-24 |
24V |
1.2 / 4.3 |
2A |
45 / 3.1 |
3/8"Barb |
2-pin / Lead |
|
Model |
Voltage |
Open flow (GPM/LPM) |
Max draw |
Shut-off pressure (PSI / BAR) |
Ports |
Wire connections |
|
NMDP21-G10-40-12 |
12V |
1.0 / 3.8 |
4A |
40 / 2.8 |
3/8"Barb |
2-pin / Lead |
|
NMDP21-G10-40-24 |
24V |
1.0 / 3.8 |
2A |
40 / 2.8 |
3/8"Barb |
2-pin / Lead |
|
NMDP21-G11-70-12 |
12V |
1.1 / 4.0 |
4A |
70 / 4.8 |
3/8"Barb |
2-pin / Lead |
|
NMDP21-G11-70-24 |
24V |
1.1 / 4.0 |
2A |
70 / 4.8 |
3/8"Barb |
2-pin / Lead |
|
NMDP21-G12-35-12 |
12V |
1.2 / 4.3 |
4A |
45 / 3.1 |
3/8"Barb |
2-pin / Lead |
|
NMDP21-G12-35-24 |
24V |
1.2 / 4.3 |
2A |
45 / 3.1 |
3/8"Barb |
2-pin / Lead |
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Model |
Voltage |
Open flow (GPM/LPM) |
Max draw |
Shut-off pressure (PSI / BAR) |
Ports |
Wire connections |
|
NMDP21-G10-40-12 |
12V |
1.0 / 3.8 |
4A |
40 / 2.8 |
3/8"Barb |
2-pin / Lead |
|
NMDP21-G10-40-24 |
24V |
1.0 / 3.8 |
2A |
40 / 2.8 |
3/8"Barb |
2-pin / Lead |
|
NMDP21-G11-70-12 |
12V |
1.1 / 4.0 |
4A |
70 / 4.8 |
3/8"Barb |
2-pin / Lead |
|
NMDP21-G11-70-24 |
24V |
1.1 / 4.0 |
2A |
70 / 4.8 |
3/8"Barb |
2-pin / Lead |
|
NMDP21-G12-35-12 |
12V |
1.2 / 4.3 |
4A |
45 / 3.1 |
3/8"Barb |
2-pin / Lead |
|
NMDP21-G12-35-24 |
24V |
1.2 / 4.3 |
2A |
45 / 3.1 |
3/8"Barb |
2-pin / Lead |
|
Model |
Voltage |
Open flow (GPM/LPM) |
Max draw |
Shut-off pressure (PSI / BAR) |
Ports |
Wire connections |
|
NMDP22-G12-80-12 |
12V |
1.2 / 4.5 |
4.5 A |
80/5.5 |
3/8"Barb |
2-pin / Lead |
|
NMDP22-G12-80-24 |
24V |
1.2 / 4.5 |
2.3 A |
80/5.5 |
3/8"Barb |
2-pin / Lead |
|
NMDP22-G13-100-12 |
12V |
1.3/5.0 |
5.0 A |
100/6.9 |
3/8"Barb |
2-pin / Lead |
|
NMDP22-G13-100-24 |
24V |
1.3/5.0 |
2.6 A |
100/6.9 |
3/8"Barb |
2-pin / Lead |
|
Model |
Voltage |
Open Flow (GPM/LPM) |
Control Type |
Max Draw |
Shut-off Pressure (PSI/BAR) |
Valves |
Diaphragm |
Ports |
Wire Connections |
|
NMDP33-G30-45-12 |
12V |
3.0 / 11.6 |
Switch |
8.0A |
45 / 3.1 |
EPDM |
Santoprene |
1/2"-14 MNPT |
2-Pin/Leads |
|
NMDP33-G30-45-24 |
24V |
3.0 / 11.6 |
Switch |
4.0A |
45 / 3.1 |
EPDM |
Santoprene |
1/2"-14 MNPT |
2-Pin/Leads |
|
NMDP33-G28-45-12 |
12V |
2.8 / 10.6 |
Switch |
6.0A |
45 / 3.1 |
EPDM |
Santoprene |
1/2"-14 MNPT |
2-Pin/Leads |
|
NMDP33-G28-45-24 |
24V |
2.8 / 10.6 |
Switch |
3.5A |
45 / 3.1 |
EPDM |
Santoprene |
1/2"-14 MNPT |
2-Pin/Leads |
Our compact fresh water pump is the ideal solution for installations with limited space. This small yet powerful pump is designed to fit seamlessly into tight spots, making it perfect for small boats, campers, and cabins. Don't let space limitations hold you back from enjoying a consistent and reliable source of fresh water.
The 22-series of diaphragm pumps are self-priming, can be run dry without harm and have an internal bypass feature which reduces pump cycling. It provides up to 1.4 gallons per minute. Our energy-efficient RV diaphragm pump is your gateway to resource savings. With low power consumption and high performance, it ensures you have a consistent water supply without draining your RV's energy resources.
The 33-Series is our general-duty on-demand positive displacement pump. It provides reliable performance in high water flow, moderate pressure applications. This 3-chamber diaphragm pump provides up to 3.0 gallons per minute and is capable of self-priming up to 6vertical feet, and can run dry without damage. Serves 3 or more 1/2” (13 mm) outlets. This automatic demand water system pump has a built-in pressure switch, which automatically starts and stops when the faucet is opened and closed. They're easy to install, service and winterize.
Enjoy hassle-free water delivery with our self-priming RV diaphragm pump. It automatically removes air and primes itself, saving you time and effort. No more manual priming—just reliable water whenever you need it.
The 51-Series is our Heavy-Duty water pump. It provides high volume water flow with reduced pump cycling, thanks to the large five-chamber diaphragm.
Experience peace and space-saving efficiency with our compact RV diaphragm pump. Designed to operate quietly, it ensures a tranquil atmosphere in your RV. Its compact size makes installation a breeze, even in tight spaces.With a powerful 3.0GPM flow rate and 55 PSI pressure, it's perfect for strong, consistent water flow
Experience peace and energy savings with our quiet and energy-efficient fresh water pump. This pump is whisper-quiet while operating. Additionally, its low power consumption ensures that you get the water you need without draining your resources. Ideal for homes and recreational vehicles.
Xiamen Newmao Pump Industry Co., Ltd. We sincerely welcome customers all over the world to negotiate business and build up good relationship for creating bright future.
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