HG/T 2129.25-1991 Bidirectional equal-diameter pipe joints for chemical equipment parts made of acid-resistant phenolic plastics HG/T2129.25-1991 Standard download decompression password: www.bzxz.net

Scope of application
Chemical Industry Standard of the People's Republic of China
Two-way equal-diameter pipe joints for chemical equipment parts made of acid-resistant phenolic plastic
HG/T2129.25-91
This standard applies to two-way equal-diameter pipe joints made of acid-resistant phenolic plastic with an allowable temperature of -30℃~130 and an allowable pressure as specified in the table below.
2 Reference standards
HG/T2128 Technical conditions for chemical equipment, pipes and fittings made of acid-resistant phenolic plastics 3 Types and basic dimensions
Types and basic dimensions are as specified in the following figures and tables, mm
Nominal diameter
Approved by the Ministry of Chemical Industry of the People's Republic of China on August 19, 1991tFs
Allowable pressure at room temperature
MPa(kgf/cm2)
Implemented on January 1, 1992
HG/T2129.25-91
Quality of raw materials and products Quality inspection, packaging, storage and transportation of raw materials and finished products should comply with the provisions of HG/T2128. Marking example
Bidirectional equal-diameter pipe joints made of acid-resistant phenolic plastic with a nominal diameter of DN=20mm are marked as DN20HG/T2129.25--91
Pipe joints
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This standard was proposed by China National Chemical Equipment Corporation, and this standard is under the jurisdiction of the National Technical Committee for Standardization of Non-metallic Chemical Equipment. This standard was drafted by Chengdu Chemical Research and Design Institute, and the main drafters of this standard are He Jiabing and He Jin. 54
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