Stokes 1721S

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.

Features and Benefits

  • High capacity pumping combinations.
  • Proven oil sealed Microvac oil sealed piston pumps with high capacity direct drive 6” Stokes series mechanical booster pumps.
  • Flexible platform design.
  • Process isolation mechanical booster pump flexibility.
  • Harsh duty compatibility robust proven design.
  • Standard controls for the 1700 series high capacity mechanical booster pump combinations include a pressure switch, motor starters, overloads and lights for pump running and fault indication.
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