Vacuum Boosters and Blowers

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  Drop-Through Rotary Airlock Valves

  NES Drop-Through Rotary Airlock Valves ensure precise material flow in pneumatic conveying and metering applications. Featuring a drop-through design, they allow gravity-assisted discharge while maintaining system pressure and preventing air loss. Available in cast iron or stainless steel (304/316) with 6” to 18” [150 mm to 450 mm] bore sizes, they support up to 15 psi differential pressure and 482°F [250°C] operating conditions, making them ideal for food, chemical, pharmaceutical, plastics, and bulk material handling industries.
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  NES NB Series – Roots-Type Bi-Lobe Vacuum Pump Boosters

  NES Company Inc. is proud to offer our NB Series high performance Roots-type vacuum boosters. With a five-point bearing design and double oil tanks, the NB Series vacuum boosters are built for roughing at high levels of vacuum. The NB Series spans a wide range of uses, from 100 to 60000 CFM at a constant ultimate vacuum level of  Torr from 3 to 150 HP. For replacement of MD Kinney vacuum boosters or searching for a new vacuum booster that is the same quality with competitive pricing, NES Company Inc. highly recommends the NB Series Roots-type vacuum boosters.
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  NRB Series – Roots-Type Blowers

  NES Company Inc. NRB Series Roots-type blowers are perfect for roughing and removal of condensable process gasses. These three-lobe design single units can reach a pressure of 1034 mbarg and vacuum of 339 mbar with the ability for both compressive and vacuum effects. NES NRB Series blowers boast a high rotation speed, lowering the temperature of the process gas and extending the life of the blower’s components. The NRB Series is available from 220 to 9300 CFM and 4 to 400 HP.