HG/T 2129.23-1991 Acid-resistant phenolic plastics for chemical equipment parts Flange type right angle reducing cross HG/T2129.23-1991 Standard download decompression password: www.bzxz.net

Scope of application
Chemical Industry Standard of the People's Republic of China
Flanged right-angle reducing cross made of acid-resistant phenolic plastic chemical equipment parts
HG/T2129.23-91
This standard applies to flanged right-angle reducing cross made of acid-resistant phenolic plastic with an allowable temperature of -30℃～130℃ and an allowable pressure as specified in the table below.
Cited Standard
HG/T2128 Technical Conditions for Chemical Equipment, Pipes and Fittings Made of Acid-resistant Phenolic Plastic 3 Type and Basic Dimensions
Type and basic dimensions are as specified in the figure and table below, enlarged view of part A
Unspecified corner r>3mm
Approved by the Ministry of Chemical Industry of the People's Republic of China on August 19, 1991 and implemented on January 1, 1992 Shi
Nominal diameter
DN/D'MbZxz.net
100/80
150/100
200/150
250/200
300/250
350/300
400/350
450/ 400
500/45 0
128/94
148/128
206/148
256/206
320/256
370/320
430/370
480/430
533/480||tt| |590/538
HG /T2129.23—91
Quality inspection, packaging, storage and transportation of raw materials and products t/g'
-12/10
Quality inspection, packaging, storage and transportation of raw materials and products shall comply with the provisions of HG/T2128, 3
Marking example
Allowable pressure at room temperature
MPa(kgt/cm2)
0.15 (1.5)
0.13 (1.3)
The flanged right-angle reducing cross made of acid-resistant phenolic plastic with nominal diameter DN=50mm and DN=32mm is marked as: Cross DN50/32HG/T2129.23--91
6 Selection instructions
Right-angle reducing crosses outside the standard series can be resolved through negotiation between the supply and demand parties and this standard number can still be used. For example: The flanged right-angle reducing cross made of acid-resistant phenolic plastic with nominal diameter DN=00mm and DN=100mm is marked as:
Cross DN300/100HG/T2129.23-91
Additional instructions:
This standard was proposed by China National Chemical Equipment Corporation and 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 were He Jiabing and He Jin. 50
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