Product Description
Welch DUOSEAL Two Stage - Refrigeration 1397B-46
- Deep vacuum for fast evacuation and dehydration
- Durable pump, precision machined
- Gas ballast for high vapor loads.
Rugged DuoSeal belt-drive vacuum pumps enable fast, thorough evacuation of refrigeration systems. Features high flow and deep vacuum with low pump RPM and large oil reservoirs for extended life and reduced maintenance. Includes handles for enable positioning.
| Applications | Service Lithium Bromide absorption chillers to 1500 tons, fluorcarbon or ammonia chillers to 1000 tons |
| Type | DUOSEAL Two Stage - Refrigeration |
| Free Air Displacement m3/hr (l/min.) @50Hz | 17.7(500 l/min) |
| Ultimate Pressure | 0.001 Torr |
| Maximum Vacuum | 1 x 10-4 (1.3 x 10-4) |
| Oil Capacity, qt.(liters) | 1.25(1.2) |
| Motor Horsepower (watts) | 1(750) |
| Adjustable Vac. / Gas Ballast | Yes |
| Tubing Needed | Yes |
| Intake Thread NPT | 1.75-20 |
| Exhaust, Thread Type | 1.75-20 |
| Overall Dimensions LxWxH in. (cm) | 26x13.7x18.8 (66x34.8x47.6) |
| Ship Weight, lbs. (kg) | 213(96.8) |
