Stokes 1721S Mechanical Booster Pump Combination
Stokes 1721S Mechanical Booster Pump Combination 230/460V, 3-ph, 60Hz (230/460V Coil)
Overview
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.
Technical data
| Booster displacement | 2720 m3h-1 / 1600 ft3min-1 |
| Booster speed | 2200 rpm |
| Booster orientation | Horizontal |
| Pump displacement | 255 m3h-1 / 150 ft3min-1 |
| Pressure switch required | Yes |
| Normal cut-in pressure | 13 mbar / 10 Torr |
| Continuous operation pressure limit | 2.6 mbar / 2 Torr |
| Booster drive | 7.5 kW / 10 hp |
| Pump drive (TEFC) | 6.5 kW / 7.5 hp |
| Inlet connections | 8 inch ASA/ANSI flange |
| Discharge connections | 2 inch ASA/ANSI flange, 2 inch NPT |
| Water inlet/outlet connection | ½ inch NPT |
| Recommended cooling flow @ 30ºC/85 ºF | 5.7 lmin-1 / 1.5 galmin-1 |
| Booster oil capacity (V lube H) | 1.9 litre / 0.51 US gal |
| Microvac oil capacity (V lube F) | 15 litre / 4 US gal |
| Inlet height | 1035 mm / 40.75 inch |
| Footprint (L x W x H) | 1419 x 919 x 1260 mm |
| 55.87 x 36.18 x 49.61 inch | |
| Weight | 1270 kg / 2800 lbs |
Contact : Kevin Liu, 0086 21 50878197
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