Cooling Gear Pump w/ relief valve
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Manufacturer:
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Series (32 Models):
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Product Name:Cooling Gear Pump w/ relief valve
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Model Number:N1000R39
Heliarc Welding
Oberdorfer N1000R39
Heliarc Welding machine cooling Pump. Bronze Pedestal Gear pump
with relief valve. Often used as a coolant pump on welding torch,
Miller welder heli-arc. Pump flow is reversible. Round body "no
feet body".
- Gear pumps are positive displacement pumps. Each shaft revolution displaces a definite amount of liquid relatively unaffected by the back pressure in the discharge line. Shaft speed and flow are directly proportional.
- Maximum shaft speed is 1750 rpm.
- Recommended pressure limits are 100 psi for water and non-lubricants, 150 psi for oil and lubricants.
- A relief valve is a necessary in the system if the discharge line contains any throttling devices, such as a shut-off valve, a spray nozzle or other restrictive device. This will return the liquid to the suction side or to the tank. However, built-in relief valves are only good for intermittent service. If used continuously, the pump will over heat. A built-in relief valve is strictly a safety device against overpressure. It will not work successfully as a pressure or flow control device. For this purpose a separate relief valve in the pressure line must be used.
- Service life will be increase substantially if the liquid pumped is clean and has a lubricity value. These pumps have extremely close tolerances.
- Pump housings and gears are made of top quality bronze
- Shafts are from stainless steel 303
- Bearings are designed of high performance carbon-graphite material selected for wear resistance and long service life.
| Model Number | N1000R39 |
|---|---|
| part number | N1000R39 |
| Series | N Oberdorfer Gear Pumps Bronze |
| Max Flow (GPM.) | 2 |
| Max Flow GPH | 120 |
| TDH Maximum (Ft) | 243 |
| TDH Maximum (PSI) | 100 |
| Inlet Connection Type | FNPT |
| inlet size | Less than 1" |
| Inlet (In.) | 0.25 |
| Outlet Connection Type | FNPT |
| Outlet (In.) | 0.25 |
| Wetted Materials | 304SS, Bronze |
| Elastomers / O-ring | Buna-Nitrile |
| Speed (RPM.) | 1725 |
| Self Priming | Yes |
| Suction Lift (FT.) | 20 |
| Max Operating Temperature (F) | 350 |
| Viscosity | Glycerine 880.00 cp 5000.00 ssu |
| Shaft | 304SS |
| Mechanical Seal | LIP |
| Mechanical Seal Type | Single |
| Coupling | Y |
| Other | Shaft Size: 1/2". Relief valve factory set at 50 PSI. Pump is bi-rotational or reversible. Reversing the rotation reverses the In Outlet ports and the location of the by-pass port has to be reversed. 32133 is drive gear and 32118 is idler gear parts. 11187 is the pump repair kit. |
| Pump Bearing | Carbon |
| Drain | No |
| Port Rotation | Yes |
| Country of Manufacture | United States |
| Weight (Lbs) | 5.000000 |
| Warranty (YRS.) | 1 |
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