China Professional Single-Stage Rotary Piston Vacuum Pump Replacement For Kinney KT150 KT300 near me factory

Single-Stage Rotary Piston Vacuum Pump Replacement For Kinney KT150 KT300

Replace the Kinney Vacuum Pump

Our vacuum pump can perfectly replace the Kinney vacuum pump, the following is the corresponding model of Kinney


This type of pump is mainly used for extracting, pumping, and conveying air and other gases. For examples, vacuum evaporation and drying in the chemical industry, vacuum dehydration in the textile and paper industry, etc. It can be used as the pre-inflation seal of the Roots blower pump, and the application range of the Roots blower pump can be greatly improved.

Rotary Piston Vacuum Pumps

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A rugged type of vacuum device is the rotary piston vacuum pump. Industries such as aerospace, vacuum degassing, evacuation, metal drying, and vacuum impregnation use the rotary piston vacuum pump to create a vacuum. This type of pump is attractive when handling dry, non-condensable loads.

How Rotary Piston Vacuum Pumps Create Vacuum

The piston is eccentric to the main bore of the pump cylinder. Gas is drawn into the chamber as the volume in the “bucket” expands as the piston moves around the chamber. When this volume is at its maximum, the bucket seals as the piston closes off the inlet port. As the sealed-off gas rotates around the chamber, the gas is compressed and discharged out of the outlet port at a pressure slightly above atmospheric.

A thin film of lubricating oil lines the inside of the vacuum chamber within the rotary piston pump to achieve a better vacuum seal. However, this oil can become entrained in the process vapors and is present in the discharge vapors of the vacuum pump. Contaminated process gas is unavoidable.

The rotary piston pump has 2 configurations, single-stage, and two-stage. Similar to liquid ring vacuum pumps, the two-stage configurations have higher capacities at a deeper vacuum than the single-stage designs. Additional components can be added to the rotary piston vacuum system to improve operability and convenience, including oil mist eliminators to collect and recycle entrained oil, after-condensers, and receivers to collect trace amounts of condensable on the discharge of the system, and many others.

Pros and Cons of Vacuum pump

The rotary piston vacuum pump has many advantages:

  • Relatively cheap and high capacity at deep vacuum levels (<0.01 Torr)
  • The rugged design allows for a long life
  • Can allow trace amount of solvents

The limitations of this type of vacuum pump are as follows:

  • Cannot handle liquids or any process carryover because these will damage the internals of the pump
  • Cannot easily handle condensable vapors
  • Solvent recovery is not possible due to oil contamination
  • Designs can be noisy

Related Vacuum Pump Products


Vacuum Pump Supplier



Hangzhou Ever-power Transmission Co., Ltd. is a manufacturer with decades of professional production experience in vacuum equipment. Its brand “Japanese business” has become 1 of the most influential brands in China. The company has a strong technical force, professional technicians and decades of production experience, excellent processing equipment, and strong awareness of quality management. Our products strictly implement ISO9001:2008 international quality system certification. So far, our factory has taken the lead in adopting German vacuum pump production technology. The core components are produced by the horizontal machining center and four-axis vertical machining center imported from damage, Germany. We provide our customers with vacuum equipment to meet their professional needs. Main products: single-stage rotary vane vacuum pump (XD, x), two-stage rotary vane vacuum pump (2x, 2XZ), roots pump (ZJ, jp), water ring pump (SZ, 2BV, 2BEA), vacuum system (water ring closed-loop system, roots rotary vane unit, etc.), vacuum technology solution system. Main application fields of products: food machinery, pharmacy, refrigeration equipment, rubber machinery, solar photovoltaic, chemical vacuum heat treatment, smelting, and other industries. We sincerely hope that we can continuously improve our service and provide customers with first-class vacuum products has always been our responsibility. We are willing to cooperate with you for common development and create brilliance.

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