HG/T 2129.22-1991 Flange-type right-angle equal-diameter cross for chemical equipment parts made of acid-resistant phenolic plastics

HG/T 2129.22-1991 Acid-resistant phenolic plastics for chemical equipment parts Flange type right angle equal diameter cross HG/T2129.22-1991 Standard download decompression password: www.bzxz.net

Scope of application
Chemical Industry Standard of the People's Republic of China
Flanged right-angle equal-diameter cross made of acid-resistant phenolic plastic for chemical equipment parts
HG/T2129.22-91
This standard applies to flanged right-angle equal-diameter cross made of acid-resistant phenolic plastic with an allowable temperature of -30℃ to 130℃ and an allowable pressure as specified in the table below.
2 Reference standardsbzxz.net
HG/T2128 Technical conditions for chemical equipment, pipes and fittings made of acid-resistant phenol-free plastic 3 Types and basic dimensions
Types and basic dimensions are as specified in the following figure and table. A-part enlarged view
Note: r>3mm at corners not specified
Approved by the Ministry of Chemical Industry of the People's Republic of China on August 19, 1991 [implemented on January 1, 1992]
Nominal diameter
HG/T2129.22—91
Quality inspection, packaging, storage and transportation of raw materials and products 6
Quality inspection, packaging, storage and transportation of raw materials and products shall comply with the provisions of HG/T2128,
5 Marking examples
Allowable pressure at room temperature
MPa(kgf/cm*)
0.15 (1. 5)
0.13 (1.3)
The flanged right-angle equal-diameter cross made of acid-resistant phenolic plastic with a nominal diameter of DN=32mm is marked as Cross DN32HG/T2129.22-91
Additional instructions:
This standard was proposed by China National Chemical Equipment Corporation and coordinated by the National Technical Committee for Standardization of Non-metallic Chemical Equipment. This standard was drafted by Chengdu Chemical Research and Design Institute. The main drafters of this standard are He Jiabing and He Jin.
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