Stokes Microvac Rotary Piston Pumps

The most efficient rotary piston pump in the industry

Suitable for a broad range of industrial processes

A proven, robust machine

For over 80 years, the Stokes Microvac has been delivering robust, reliable operations with maximum uptime. A large part of this is due to the efficient design that includes minimal moving parts.

Ready-to-install pump saves space

With the improved, upgraded and fine-tuned ‘J’ series, you get delivery of a complete, self-contained vacuum pump, which saves you up to 50% of floor space.

Slow rotational speed

With a rotational speed of less than 500 RPM, the Stokes Microvac is 50% slower than competitive models. This means longer life and a greater ability to handle particulate matter from your harsh applications.

Ease of service

The simple mechanism can be easily serviced and maintained on-site. The robust design includes fewer parts that are easily interchangeable, keeping your maintenance and parts costs low.

Application engineering and systemisation

When you order a Stokes Microvac, our team of highly focused application experts are able to offer you a comprehensive package of design and integrated vacuum system solutions, which can include mechanical booster combinations to meet your specific requirements.

Easy to fit accessories available

You can choose from a wide range of accessories, including water miser, oil mist separators, gas ballast silencers, auto gas ballast, external oil purifiers, inlet filters and closed loop external cooling systems, providing versatility for numerous applications.

Pump Type Maximum pumping speed Ultimate vacuum Motor power Overall dimensions noise level 50/60 Hz
50 Hz 60 Hz L W H
m³h4 ft³min4 mbar Torr kW Hp kW Hp In In In dB(A)
212 J 234 138 <3.3x10-2 <2.5x10-2 5.5 7.5 5.5 7.5 26.25 24 43.5 <77
412 J 442 260 <3.3x10-2 <2.5x10-2 11 15 7.7 10 40.25 25.63 1314 <85
612 J 884 520 <3.3x10-2 <2.5x10-2 11 15 7.7 10 43.75 70 56.63 <85

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