HG/T 2129.11-1991 Tubular liquid level gauges for chemical equipment parts made of acid-resistant phenolic plastics

HG/T 2129.11-1991 Acid-resistant phenolic plastics for chemical equipment parts Tubular liquid level gauges HG/T2129.11-1991 Standard download decompression password: www.bzxz.net

Scope of application
Chemical industry standard of the People's Republic of China
Tube liquid level gauge made of acid-resistant phenolic plastic chemical equipment parts
HG/T2129.11-91
This standard applies to tube liquid level gauges made of acid-resistant phenolic plastic with an allowable temperature of -30℃～130℃ and an allowable pressure of less than or equal to 0.29MPa at room temperature
Referenced standardsWww.bzxZ.net
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
3 Types and basic dimensions
Types and basic dimensions are as shown in the figure below and the provisions of Tables 1 and 2. Approved by the Ministry of Chemical Industry of the People's Republic of China on August 19, 199124|| tt||1992-01-01 implementation
HG/T2129.11—91
Nominal length 4
Glass tube length L
Mass, kg
Split cast iron flange
Upper cock
Corrugated glass tube
Lower cock
HG/T2129.11—91
Parts list
Basic size table
Quality inspection, packaging, storage and transportation of raw materials and products 800
Acid-resistant phenolic plastics
Assemblies
Silicon glass
Assemblies
The quality inspection, packaging, storage and transportation of raw materials and products shall comply with the provisions of HG/T2128, and the pressure test of the liquid level gauge and the glass tube of the equipment shall be carried out in accordance with QB776 standard.
Non-matching dimension tolerance grade of metal parts: machined surface is in accordance with IT14 in GB1804: non-working surface is in accordance with IT16. Marking example
Glass tube liquid level gauge with nominal length A=500mm, its marking symbol is: Liquid level gauge A500mmHG/T2129.1191
Additional instructions:
This standard is proposed by China National Chemical Equipment Corporation, and this standard is under the jurisdiction of the National Non-Metal Chemical Equipment Standardization Technical Committee. This standard is drafted by Chengdu Chemical Research and Design Institute. The main drafters of this standard are He Jiabing, He Jin, 26
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.