Metal bellows pump
This is a volumetric pump that utilizes the features of a flexible stainless steel bellows diaphragm. Suitable for gas vacuum pumps and booster compressors.
- Excellent airtightness The structure of the welded bellows and sealed housing allows for highly airtight suction and discharge. Helium leak tightness: 1×10(-6) to 1×10(-10) Pa·m³/sec - No contamination The bellows and the lead valve, which are the gas-contacting parts, have no structural wear areas, ensuring no contamination of the fluid gas. - High corrosion resistance The materials used in the gas-contacting parts are 300 series stainless steel, which is resistant to degradation and corrosion. Teflon or Viton gaskets are used for the valves, and by selecting aluminum O-rings (gaskets) as an option, the entire gas-contacting section can be made of a metal structure. - Long lifespan The bellows and valves in the moving parts are designed and manufactured to operate below the durability limits of the materials used, allowing them to withstand nearly infinite operating cycles. Additionally, the manufacturing facilities that meet aerospace and nuclear equipment-level quality control requirements, along with standardized welding processes and techniques, ensure the reliability and stability of high-performance products. *Special specifications are also available.*
basic information
The driver reciprocates due to the eccentric cam between the motor shaft and the bearing, which gives a positional change to the bellows, causing the reed valve to open and close, and allowing the fluid gas to be inhaled and expelled. The combination of a bellows that completely seals the fluid gas, a drive unit with a welded driver incorporating a non-lubricated sealed ball bearing, and a high-performance reed valve that has been successfully molded, allows the metal bellows pump to be designed for nearly infinite cycle operation without performance degradation.
Price range
Delivery Time
Applications/Examples of results
- Sampling of oxygen concentration meters, atmospheric analyzers, exhaust gas analyzers, etc. - Sampling of radiation monitoring analysis equipment for nuclear power plants and research purposes. - Circulation and storage systems for radioactive isotopes (such as tritium). - Processing of toxic and expensive gases (rare gases). - Pressurization of drinking water for commercial aircraft. - Transfer and storage of semiconductor process gases (such as fluorine and special hydrogen). - Gas purification equipment for excimer lasers. - Gas circulation for cryogenic and superconducting applications (helium) and dilution refrigerators (helium-3). - Cooling lines for medical PET diagnostic accelerators.
