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Stokes Microvac 412J

The Stokes Microvac rotary piston pump sets the standard for performance and reliability as the industries most efficient, space-saving design. The Stokes Microvac rotary piston pump has been improved, upgraded, and fine-tuned to deliver even better dependability and productivity combined with minimal maintenance and process downtime.

An integral oil distribution system eliminates external piping and delivers leak-free operation in a stylized design. A stiffer motor mounting platform cuts flexibility to minimize motor belt wear. A stylized oil reservoir cover and side cover ‘O’ rings improve sealing to eliminate oil leakage. An integral gas ballast valve built into the side cover allows quick adaptation to automatic gas ballast.

Most importantly, these improvements don’t increase the industry leading space saving footprint. Inlet, outlet and mounting dimensions are exactly the same as the H series Microvac rotary piston pump.

This pump is fitted with a 230/460V coil for control of the oil solenoid valve which prevents the pump from flooding with oil in the case of power failure or a loss of vacuum. In addition oil temperature/heater ports have been added as standard to provide a means to monitor and heat the pump oil if required.

Informacje

Features and Benefits

  • Robust cast and ductile iron construction provides rugged reliable operation.
  • Efficient design provides maximum uptime with minimal moving parts and large clearance.
  • Low ultimate blank-off with pressures down to < 10-2 Torr.
  • New valve design virtually eliminates valve maintenance and noise.
  • Space saving design which saves up to 50 of valuable floor space.
  • Complete and self-contained unit delivered ready to install.
  • Automatic lubrication system provides proper flow of oil to bearings and sealing surfaces and prevents back flow into system.
  • Controlled balancing reduces vibration to a practical minimum.
  • Gas ballast as standard.
  • Total capability includes the manufacturing and service capabilities to keep your equipment in top operation with a broad range of vacuum system accessories.

Applications

  • Automotive
  • Chemical processing
  • General applications
  • Heat treatment
  • Leak detection
  • Metallurgy
  • PET processing
  • Pharmaceuticals
  • Transformer drying and cable fluid conditioning
  • Vacuum coating
  • Vacuum melting
Dane techniczne
Displacement (swept volume)(AVS) 510 m3h-1 / 300 ft3min-1
Pumping Speed 442 m3h-1 / 260 ft3min-1
Ultimate vacuum (total pressure)  
  without gas ballast <3.3x10-2 mbar / <2.5x10-2 Torr
  with gas ballast <2.6x10-1 mbar / <2x10-1 Torr
50Hz Motor size 11 kW IEC (CE variant)
60Hz Motor size 10 hp TEFC
Motor speed 1800 rpm
Inlet connection 4 inch ASA/ANSI flange
Exhaust connection 3 inch ASA/ANSI flange or 3 inch NPT
Water inlet/outlet connection ½ inch NPT
Recommended cooling flow @ 85°C / 30°F 7.6 lmin-1 / 1.5 galmin-1
Water vapour pumping rate 10.45 kg h-1 / 23 lb h-1
Oil capacity 46 litre / 12 gal
Recommended oil V lube F
Noise level  
Weight 794 kg / 1750 lbs
Pliki do pobrania
212-J/ 412-J Microvac® Pumps Instruction Manual