HG/T 2129.10-1991 Plate type liquid level gauge for chemical equipment parts made of acid-resistant phenolic plastics HG/T2129.10-1991 Standard download decompression password: www.bzxz.net

Scope of application
Chemical Industry Standard of the People's Republic of China
Plate type liquid level gauges made of acid-resistant phenolic plastic chemical equipment parts
HG/T2129.10-91
This standard applies to plate type liquid level gauges made of acid-resistant phenolic plastic with an allowable temperature of -30℃~130C and an allowable pressure of less than or equal to 0.2MPa at normal temperature.
Cited standards
GB1804 Tolerances and fits Limit deviations of dimensions without tolerances HG/T2128 Technical conditions for chemical equipment, pipes and fittings made of acid-resistant phenolic plastic QB776 Glass plates and glass tubes for liquid level gauges
Type and basic dimensions
Type and basic dimensions shall be as specified in the figure below and Table 1 and Table 2. ：The Ministry of Chemical Industry of the People's Republic of China approved it on August 19, 1992 and implemented it on January 1, 1992
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HG/T2129.10-
Table 1 Parts List
This size is related to
See the basic size table
Moisture silica glass
Resistant energy plastic
Light-transmitting size
18×204
18×304
Glass plate size||t t||34×220
34×320
HG/T2129.10—91
Basic dimensions for quality inspection, packaging, storage and transportation of raw materials and finished products
Mass, kg
The quality inspection, packaging, storage and transportation of raw materials and finished products shall comply with the provisions of HG/T2128. The pressure test of the liquid level gauge shall be carried out together with the equipment. The glass plate of the liquid level gauge shall be in accordance with the QB776 standard. The pressure shall not have defects that reduce the strength and connection reliability. The allowable deviation of the chord length between two adjacent bolt holes in the flange and gland is ±2mm, and the tolerance of the chord length between any two bolt holes is ±3mm. 5 Non-matching dimension tolerance grade of metal parts: Machined surface shall be IT14 in GB1804; non-machined surface shall be IT166. Marking example
Plate liquid level gauge with light transmission size of 18×204, its marking symbol is: Liquid level gauge 18×204HG/T2129.10--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 Research and Design Institute. The main drafters of this standard are He Jiabing and He Jin.
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