This Document specifies the requirements for pressure regulator of CNG vehicles, describes the test methods, and provides information on marking and exit-factory documentation. This Document applies to pressure regulator of CNG vehicles with a nominal operating pressure not exceeding 35 MPa, an operating temperature of -40℃ to 120℃, and a working medium conforming to GB 18047. NOTE. Unless otherwise stated, all pressures mentioned in this document refer to gauge pressure.
Basic Data
Standard ID
GB/T 20735-2025 (GB/T20735-2025)
Description (Translated English)
Pressure regulator of CNG vehicles
Sector / Industry
National Standard (Recommended)
Classification of Chinese Standard
T40
Classification of International Standard
43.020
Word Count Estimation
18,127
Date of Issue
2025-10-31
Date of Implementation
2026-05-01
Older Standard (superseded by this standard)
GB/T 20735-2006
Issuing agency(ies)
State Administration for Market Regulation and Standardization Administration of China
