Stokes 1738BP Mechanical Booster Pump Combination
Whether you need to increase the  capacity of your existing system or achieve peak performance for a new  installation; Edwards makes taking advantage of the latest technology  easy. These field-proven pumping systems are the workhorse of countless  industrial and large chamber applications. Each Stokes1700  series mechanical booster pump combination includes a Stokes Microvac  backing pump and a belt driven, horizontal flow, high vacuum Stokes  6” series mechanical booster pump. In harsh applications where chemical  or particulate contamination is present, process isolation boosters are  available as an option. Controls for Stokes 1700 series mechanical  booster pump combination include a pressure switch, motor  starters, overloads, remote booster selection switch and lights for pump  running and fault indication.
Multi-stage vacuum systems from  Edwards combine a high capacity dry-lobe booster with a Microvac rotary  piston pump. These combinations deliver the high capacity needed to  achieve faster pump-downs. Most importantly, these systems achieve the  task more cost effectively than larger single stage pumps. Depending on  the specific application, they can improve blank-off by a factor of ten  over large, single stage pumps. Pumping capacities range from 1300 to  7880 ft3min-1.
| Booster displacement | 3398 m3h-1 / 2000 ft3min-1 | 
| Booster speed | 2750 rpm | 
| Booster orientation | Horizontal | 
| Pump displacement | 510 m3h-1 / 300 ft3min-1 | 
| Pressure switch required | No | 
| Continuous operation pressure limit | 4 mbar / 3 Torr | 
| Booster drive | 11 kW / 15 hp | 
| Pump drive (TEFC) | 7.5 kW / 10 hp | 
| Inlet connections | 8 inch ASA/ANSI flange | 
| Discharge connections | 3 inch ASA/ANSI flange, 3 inch NPT | 
| Water inlet/outlet connection | ½ inch NPT | 
| Recommended cooling flow @ 30ºC/85 ºF | 7.6 lmin-1 / 2 galmin-1 | 
| Booster oil capacity (V lube H) | 1.9 litre / 0.51 US gal | 
| Microvac oil capacity (V lube F) | 46 litre / 12 US gal | 
| Weight | 1690 kg / 3725 lbs | 
