A self-contained, oil-sealed rotary piston pump, with low rotation and large clearances to achieve a longer life cycle. A new encapsulated valve design, improved O-ring sealing areas and enclosed fan-cooled motor ensures lower noise, lower power and extended service intervals for customers.

Slow rotational speed reduces wear for longer life and offers greater ability to handle particulate applications. An integral oil distribution system eliminates external piping and provides leak-free operation in a stylized design.

• Duplex Piston Arrangement
• External Counterbalance
• Three Bearing Design / O-Ring Seals
• Encapsulated Valve Deck
• Integrated Rebuild Capability
• Full Pumps Speed to 1 Torr
• Low Ultimate Vacuum
• Slow Rotational Speed

The reliable and versatile dry screw vacuum pump alternative for heat treatment and metallurgy industry processes.

The Stokes 212DRY-412DRY dry screw vacuum pumps offer the familiar reliable operation and performance, just as Stokes 212J and 412J pumps you have grown to rely on. With the Stokes DRY series you can improve your process operations, increase uptime and reduce maintenance at a minimal cost. Designed to handle demanding applications, these pumps deliver consistent performance even in harsh environments.

• Direct mount motor options
• Compact design and low footprint
• Simple thermal protection
• Wide range of standard accessories available
• Low power consumption
• Simple, robust seal purge system
• Simple plug and play field retrofit kits for existing installations
• Simple direct mount alternative also available

A robust rotary vane vacuum pump designed to deliver reliable performance with minimal hassle thanks to an integrated exhaust filter that operates at an optimal temperature to eliminate corrosion risks and prevent performance loss caused by external factors.

Built for continuous, long-lasting performance, the Microvane Series offers up to one year of maintenance-free operation, reduced oil consumption, and ultra-quiet performance as low as 52 dB(A). With advanced sealing and lubrication technology, internal wear is minimized, leading to fewer service interruptions and lower total cost of ownership. Less interruptions means a more dependable vacuum with minimal environmental impact and maximum uptime.

• Up to 1 year maintenance-free
• Integrated exhaust filtration
• Quiet operation
• Low oil consumption
• Compact, rugged design for demanding environments
• Adaptable with your application
• Energy efficient, up to 20% savings

Designed to be used in conjunction with rotary piston, dry vacuum, rotary vane, liquid ring, or on the inlet of the backing pump to create a compact integrated package. When coupled with one our pumps, the Stokes 6″ mechanical boosters increase pumping speed at working pressures and significantly reduce pump down time.

Available in bare-shaft or direct drive motor variants, horizontal or vertical gas flow and with a single mechanical seal or a Process Isolation variant with 5 mechanical seals for optimum protection from dust and particulate contamination in arduous applications. By-pass variants are also available, which eliminate the need for pressure switches making the 6” Series one of the most versatile and flexible boosters.

• Robust
• Increased Lifetime, Reliability 
• Simple to Use
• Easy to Maintain
• Increased Productivity
• Configured for Your Needs
• Simple to Service