Quick Attach Fittings make installation or replacement easy. These models are designed to run on water systems with no accumulator tank necessary, and up to five fixtures! It is also suited for use with a holding tank water system, as may be found in a boat, RV or remote cabin. It provides up to 5.0 gallons per minute. The 51-Series pumps are self-priming, and can run dry without damage, performance reliable. This automatic demand water system pump has a built-in pressure switch, which automatically starts and stops and stops the pump when the faucet is opened and closed. They are easy to install service and winterize.
About this item
Voltage：12V/24V
Open Flow：3.0-5.0GPM / 11.5-18.9LPM
Shut-off Pressure：60-70PSI / 4.2-4.8BAR
Priming Capabilities：6 feet (1.8 m) suction lift
Max Recommended Temperature：140° F (60° C）Max.
Material：EPDM(Valves) / Santoprene(Diaphragm)
Ports：Quick Attach
Specification
| Type |
5 Chamber positive displacement diaphragm pump, self priming, capable of being run dry |
| Control Type |
Pressure switch/ bypass |
| Max Recommended Temperature |
60° C（140° F） |
| Priming Capabilities |
6 feet (1.8 m) suction lift |
| Re-start Pressure |
Shut-off Pressure 60 PSI ：48 PSI ±5 PSI (±0.3 bar) |
| Shut-off Pressure 70 PSI ：56 PSI ±5 PSI (±0.3 bar) |
| Inlet/Outlet Ports |
QUICK ATTACH |
| Weight |
5.9 lbs (2.7 kg) |
| Leads |
14 AWG, 13" (33 cm) long with 2-Pin connector / Leads |
| Duty Cycle |
Continuous |
| Max.Amp Draw |
18.0 A |
| Fuse |
27.0 A |
|
Model
|
Voltage
|
Open flow
(GPM/LPM)
|
Max draw
|
Shut-off pressure
(PSI / BAR)
|
Ports
|
Wire connections
|
|
NMDP51-G30-60-12
|
12V
|
3.0 / 11.5
|
10A
|
60 / 4.2
|
3/4"QUICK ATTACH
|
2-pin / Lead
|
|
NMDP51-G30-60-24
|
24V
|
3.0 / 11.5
|
5.5A
|
60 / 4.2
|
3/4"QUICK ATTACH
|
2-pin / Lead
|
|
NMDP51-G40-60-12
|
12V
|
4.0 / 15.0
|
13A
|
60 / 4.2
|
3/4"QUICK ATTACH
|
2-pin / Lead
|
|
NMDP51-G40-60-24
|
24V
|
4.0 / 15.0
|
7.0A
|
60 / 4.2
|
3/4"QUICK ATTACH
|
2-pin / Lead
|
|
NMDP51-G50-60-12
|
12V
|
5.0 / 18.9
|
17A
|
60 / 4.2
|
3/4"QUICK ATTACH
|
2-pin / Lead
|
|
NMDP51-G50-60-24
|
24V
|
5.0 / 18.9
|
9.0A
|
60 / 4.2
|
3/4"QUICK ATTACH
|
2-pin / Lead
|
|
NMDP51-G50-70-12
|
12V
|
5.0 / 18.9
|
18A
|
70 / 4.8
|
3/4"QUICK ATTACH
|
2-pin / Lead
|
|
NMDP51-G50-70-24
|
24V
|
5.0 / 18.9
|
10A
|
70 / 4.8
|
3/4"QUICK ATTACH
|
2-pin / Lead
|
Dimensions
