GB/T 40344.3-2024 Active National standards

GB/T 40344.3-2024 Vacuum technology—Standard methods for measuring vacuum pump performance—Part 3:Specific parameters for mechanical booster vacuum pumps

Publish Date: 2024-04-25 Implement Date: 2024-04-25 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 40344.3-2024

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Vacuum technology and equipment

ICS Name: Vacuum technology

Publish Date: 2024-04-25

Implement Date: 2024-04-25

Pages: 17 pages

Scope

This document describes the measurement methods and special requirements for the maximum allowable pressure difference, effective compression ratio, zero-flow compression ratio, and relief valve pressure difference of mechanical booster pumps. This document is applicable to mechanical booster pumps used in medium or coarse vacuum applications, including air-cooled mechanical booster pumps and multi-stage mechanical booster pump systems. This document covers the mechanical booster pump characteristics that differ from those of conventional volume vacuum pumps. The maximum allowable pressure difference (Δpmax), effective compression ratio (Keff), zero-flow compression ratio (K0), and relief valve pressure difference (Δp1) are specific parameters of the performance of mechanical booster pumps.