Claw Pumps

Comparing claw vacuum pumps

Use the required operating pressure and pumping capacity to narrow the options, then check gas compatibility, electrical supply and the intended duty. Include any inlet protection and discharge arrangements. For a replacement, explain how the pump is controlled and whether demand is constant or varies during production.

Frequently asked questions

Does a dry claw pump mean the whole machine is oil-free?

Dry describes the pumping chamber. Other parts of the machine may still need lubrication or scheduled maintenance. Check the selected model’s documentation before specifying it for a process with particular oil or contamination restrictions.

Can a claw pump handle wet or dusty process gas?

Suitability depends on the model, the gas and the amount and type of contamination. Describe the process and any existing separation or filtration. Do not assume a dry pumping chamber can accept liquid carry-over or unrestricted dust.

What should I compare when replacing a claw pump?

Check operating pressure, pumping capacity, supply voltage, control method and inlet and exhaust connections. Include dimensions and cooling clearances. Send the complete model reference so the replacement can be assessed against the installed equipment.

What maintenance does a claw vacuum pump need?

Follow the model’s service schedule, including the items specified for filtration, lubrication and inspection. Dry pumping technology does not remove all maintenance requirements. A nameplate photograph helps identify the correct parts and instructions.

Related equipment and guidance

Compare industrial pump technologies · Filters and separators · Workshop support

Practical selection guide

Compare continuous pressure, usable flow and maintenance needs using model-specific manufacturer references. SIRELLA or EVISA: compare the technologies.