HG/T 2055.3-1991 Glass inlet with balancer HG/T2055.3-1991 Standard download decompression password: www.bzxz.net

Chemical Industry Standard of the People's Republic of China
Manhole with balancer
Pond glass manhole
I Subject content and applicable scope
HG/T2055.3-
This standard specifies the type, basic parameters, main dimensions and technical requirements of pond glass manhole with balancer. This standard is applicable to pond glass containers with nominal pressure less than or equal to 1.0MPa, medium overflow higher than -20C and lower than or equal to 200℃
This standard is generally used for pond glass containers that are frequently opened and can be used as inlet and outlet holes or inspection holes for installation and maintenance. 2 Reference standards
GB97.1 Flat washers, grade A
GB5782 Hexagonal head bolts, grade A and B
GB61701 Hexagonal nuts, grade A and B| |tt||ZBG94004 Technical conditions for glass equipment
HG/T2050 Gasket for glass equipment
HG/T2054 Clip for glass equipment
HG/T2143 Glass equipment
3 Types, basic parameters and dimensionsbzxz.net
3.1350×250, 400×300 elliptical manhole with balancer see Figure 1 and Table 1, Table 2, Table 3.3.2@450 circular manhole with balancer see Figure 2 and Table 1, Table 2, Table 3. Approved by the Ministry of Chemical Industry of the People's Republic of China on July 6, 1991 and implemented on January 1, 1992
A-Human race transfer
HG/T2055.3-—91
Circle axb
Sugar circle ex.
Full rotation
Surface according to glass
HG/T2055.3 -91
Nominal pressure PN
HG/T2054
HG/T2050
HG/T2054
Nominal size
350×250
400×300
350×250
400×300
350×250
400×300
IIG/T2055.3—91
Protective ring
Manhole cover
Balancer
Details list
Table 2 Size list
① For manhole with protective ring. M12 clips should be extended type, Note:
Assembly
10 or 08HT
10 or Q235-A
Assembly
i.e. AM12-I type or BM12-1 type.
?PN0.6MPa and PN1.0MPa manholes use A-type clips. Table 3
Nominal size, mm
Calculated value of gravity moment of hole cover, N·m
3.3 Marking
Marking example:
350×250
400×300
Pond glass with balancer elliptical hole, nominal pressure PN1.0MPa, nominal size 400×300 Marking: Manhole PN1.0-400×300HG/T205 5.3--91 Glass belt weighing instrument round manhole nominal pressure PN0.25MPa, 110
nominal size Φ450
according to medium requirements
according to glass
reference weight
HG/T2055.3-
mark: manhole PN0.25-450HG/T2055.3--914 technical requirements
4.1 Manhole covers and protective rings shall be manufactured, tested and accepted in accordance with the relevant provisions of this standard and ZBG94004. 4.2 The gasket shall comply with HG/T2050, and the gasket material shall comply with the requirements of the general drawing of the glass equipment. 4.3 The clips and hooks shall comply with HG/T2054.4.4 After the manhole with balancer is assembled, it should be easy and flexible to open, and the hole cover can stop at any position within the range of 0°～105°. 4.5 The manhole with balancer shall be tested for water pressure and air tightness together with the pond glass equipment, and the test pressure and air tightness requirements shall comply with the requirements of the general drawing of the pond glass equipment.
Packaging, transportation and purchase and storage
5.1 The exposed pond glass surface shall be wrapped with soft objects, and the packaging shall be firmly fixed. 5.2 Collisions must be avoided during handling and transportation, and the packaging box shall 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 and should not be stored or piled in the open air. Additional instructions:
This standard is proposed by China National Chemical Equipment Corporation and is under the jurisdiction of the National Glass Equipment Standardization Technical Committee. This standard is drafted by the Shanghai Pharmaceutical Design Institute of the State Drug Administration. The main drafters of this standard are Jiang Yanjun, Li Yijun and Hua Qiuyuan. This standard refers to the German national standard DIN28153-1983 "DN350×450, 500 and 600 opening cover for portable glass containers".
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