HG/T 2142-1991 Glass-lined spacers HG/T2142-1991 Standard download decompression password: www.bzxz.net

Chemical Industry Standard of the People's Republic of China
Tang glass distance pieces
Subject content and scope of application
HG/T2142-91
This standard specifies the type, basic parameters, dimensions and technical requirements of sugar glass distance pieces. This standard is applicable to sugar glass distance pieces with nominal pressure: (PN) equal to or less than 1.0MPa and medium temperature of -20C to 200C
2 Reference standards
GB1804 Tolerances and fits Limit deviations of dimensions without tolerances ZBG94004 Technical conditions for sugar glass equipment
3 Types, basic parameters and dimensions
3.1 Tang glass distance plates
According to the provisions of Figure 1, Table 1 and Table 2.
3.2 Glass spacer tube
According to the provisions of Figure 2, Table 1 and Table 2
*PN and DN in this standard represent nominal pressure and nominal diameter respectively. Approved by the Ministry of Chemical Industry of the People's Republic of China on August 19, 199162
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Implementation on January 1, 1992
PN/MPa
HG/T2142-91
Dimensions of spacer plate and spacer tube
PN-0.6MPa
PN=1.0MPa
Spacer plate Reference weight of distance tube
S in the figure and the decay is the front wall of the glass
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Length of distance tube,
3.2 Marking example
HG/T2142-91
Glass distance plate, PN is 0.6MPaDN is 50mm, plate thickness h is 10mm. Marking: distance plate PN0.6DN50×10HG/T2142-91 Sugar glass distance tube
PN is 0.6MPa, DN is 50mm, tube length h is 70mm, marking: distance tube PN0.6DN50×70HG/T2142-914 Technical requirements
4.1 Material selection, manufacturing, testing and acceptance shall be carried out in accordance with ZBG94004 and this standard. 4.2 The materials of the distance plate and distance tube are Q235-A or No. 10 steel. 4.3 Manufacturing tolerance and allowable deviation
4.3.1 The tolerance grade of the machining surface of the distance piece without tolerance is IT14 grade specified in GB1804; the tolerance grade of the non-machining surface without tolerance is IT16 grade
4.3.2 The allowable deviation of length h, h, is specified in Table 3. Table 3
Allowable gap difference
Hydraulic pressure test pressure is selected according to Table 4
5 Packaging, transportation and storage
5.1 The product should be accompanied by a packing list, product certificate and product manual. 5.2 Avoid collision during moving and transportation.
5.3 The exposed pond glass surface should be firmly wrapped with soft objects. 5.4 The product should be stored indoors. Open-air storage or stacking is not allowed. Additional instructions:
This standard is proposed by China National Chemical Equipment Corporation. This standard is under the jurisdiction of the National Glass Equipment Standardization Technical Committee. This standard was drafted by the Shanghai Pharmaceutical Design Institute of the State Pharmaceutical Administration. The main drafters of this standard are Li Yijun, Hua Qiuyuan and Bao Aiyuan. 3560
This standard refers to the German national standard DIN2873-1982 "Nominal pressure 10 pipe fittings".
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Test pressure, P
bar and 16 bar steel sealed porcelain flange pipe and
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