GB/T 33638-2017 Active National standards

GB/T 33638-2017 Vacuum technology—Turbomolecular pumps—Measurement of rapid shutdown torque

Publish Date: 2017-05-12 Implement Date: 2017-12-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 33638-2017

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Vacuum technology and equipment

ICS Name: Vacuum technology

Publish Date: 2017-05-12

Implement Date: 2017-12-01

Pages: 20 pages

Scope

This standard specifies a test method for the emergency stop torque (destructive torque) of a turbomolecular pump. This torque is generated by the gas impulse produced by axial flow blades or spiral channels. The main destructive force that causes the destruction of the molecular pump is the torque centered on the rotor axis. Other possible minor forces and torques are not within the scope of this standard.
There are two forms of destruction: rapid pump failure and rotor scraping failure, and this standard applies to both. Turbomolecular pumps and drag-out molecular pumps can use the same test method.