HG/T 2129.20-1991 Acid-resistant phenolic plastics for chemical equipment parts Flange type right angle reducing tee HG/T2129.20-1991 Standard download decompression password: www.bzxz.net

Scope of application
Chemical Industry Standard of the People's Republic of China
Flanged right-angle reducing tees made of acid-resistant phenolic plastic for chemical equipment parts
HG/T2129.20-91
This standard applies to flanged right-angle reducing tees 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 plastic 3 Types and basic dimensions
Types and basic dimensions are as specified in the figure and table below. q(q)
4 parts
1991-08-19 Ministry of Chemical Industry of the People's Republic of China approved the conversion to r>3mmwwW.bzxz.Net
010 selling point
nominal diameter
100/80
150/100
200/150
250/200
300/250
350/300
400/350
450/400
500/450
128/94
148/128
20 6/148
256/206
320/256
370/320
430/370
480/430
538/480
594/538
HG/T2129.20—91
Quality inspection,
Packaging,
Quality inspection, packaging, storage and transportation of raw materials and products shall comply with the provisions of HG/T2128. 5 Marking example
Allowable pressure at room temperature
MPa(kgf/cm\)
0.15 (1.5)
0.13 (1.3)
For the flanged right-angle reducing tee made of acid-resistant phenolic plastic with nominal diameter DN=50mm and DN=32mm, the marking symbol is:
Tee DN50/32HG/T2129.20—91
6 Selection instructions
For flanged right-angle reducing tees outside the standard series, the supplier and the buyer can still use this standard number through negotiation. For example, for the flanged right-angle reducing tee made of acid-resistant phenolic plastic with nominal diameter DN=300mm and DN=100mm, the marking symbol is:
Tee DN300/100HG/T.2129.20-91 Additional instructions:
This standard is proposed by China National Chemical Equipment Corporation. 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 Industry Research and Design Institute. The main drafters of this standard are He Jiabing and He Jin.
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