HG/T 2145.4-1991 Glass-lined handhole with sight glass quick-opening handhole

HG/T 2145.4-1991 Glass-lined handhole with sight glass quick-opening handhole HG/T2145.4-1991 Standard download decompression password: www.bzxz.net

Chemical Industry Standard of the People's Republic of China
Quick-opening handhole with sight glass
Glass hand hole
Subject content and scope of application
FG/T 2145.4-.91
This standard specifies the type, basic parameters, dimensions, technical requirements, etc. of quick-opening hand holes with sight glasses for sugar glass equipment. This standard is applicable to quick-opening hand holes with sight glasses for sugar glass with a nominal pressure less than or equal to 1.0MPa and a temperature higher than -20℃ and lower than or equal to 200℃
2 Reference standards
GB91 Split pin
GB 97.1 Flat washer Grade A
GB 882 Pin
E bm=lt
GB897 stud
GB3985 asbestos rubber sheet
GB61701 hexagonal nut
A and B grade
HGJ 501 sight glass
ZBG94004 technical conditions for glass equipment
3 types, basic parameters and dimensions
3.1 types, basic parameters and dimensions Figure 1 and Table 1, Table 2. Approved by the Ministry of Chemical Industry of the People's Republic of China on August 19, 1991 and implemented on January 1, 1992
IG /1 2145. 4 --91bzxz.net
Chen price connection
Nominal dismantling force PN
Standard number
HG/T2054
GE 6170
GB 897
GI 3985
JG J 501
GB B82
HGT 205
G/T2050
GB 6171
Nominal diameter
Note: The material selection is shown in the table:
JG / T 2145. 4 -
Double-headed butterfly column
Card pad diagram
Sight glass
Protective ring
With pseudo-frequency detection
Detailed list
Table 2 size money
Assembly parts
Image rubber plate
Coded porcelain glass
Q235-A
Compared version sealing material
C235-A
Q235-A
Nominal pressure 0.25MPa, BM12-F, material KTH350-10, Xu H cut 8600N; nominal pressure 0:6 to 1.0MPa, AM12 clip, material 35 fake pin, Xu Yue Xihe 10750NJiM 12
Pig Glass
Yikao Zhuwang
ivt iti
3.2 Marking Example
HG/ T 2145. 4 91
Glass equipment with sight glass quick opening hand hole, nominal pressure PN is 1.0MPa, nominal diameter DN is 150mm. Mark: PN1DN 150HG/T 2145.4-9I4 Technical requirements
4.1 The cover and protective ring shall be selected, manufactured, tested and accepted in accordance with ZBG94004 and this standard. 4.2 The allowable deviation of the length of two adjacent bolt holes and the center diameter of the bolt hole is ±0.6mm, and the deviation of the chord length of any two bolt holes shall not exceed ±1mm.
4.3 The gasket shall comply with relevant standards, and the specific materials shall be in accordance with the technical requirements of the general drawing of the polished glass equipment. 4.4 After the assembly of the non-mirror quick-opening hand hole for polished glass is completed, its water test or air tightness test shall be carried out at the same time as the glass equipment where it is located. 5 Packaging, transportation and storage
5.1 The outer glass surface shall be firmly wrapped with soft objects, and the packaging shall be securely fixed. 5.2 Collision must be prohibited during moving and transportation, and the packaging box must not be inverted. 5.3 The product should be accompanied by a packing list, product certificate and product instructions. 5.4 The product should be stored indoors. Open-air storage or stacking is not allowed. Additional notes:
This standard was proposed by China National Chemical Equipment Corporation. This standard was drafted by the National Glass Equipment Standardization Technical Committee and the Shanghai Pharmaceutical Design Institute of the State Food and Drug Administration. The main drafters of this standard are Hua Qiuyuan, Li Zhuangjun and Bao Aiyuan. This standard refers to the German national standard DIN28153-1983 "Steel Glass Mixing Container, Handhole Cover". From the date of implementation of this standard, the former Ministry of Chemical Industry issued standards HG5-27179 "Glass Equipment Handhole" and HG5-272-79 "Glass Equipment with Sight Glass Handhole" as standards. 160
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