HG/T 21561-1994 Acrylonitrile butadiene styrene (ABS) pipes and fittings

This standard specifies the structural dimensions, tolerances, technical conditions and inspection methods of acrylonitrile-butadiene-styrene (ABS) pipes and fittings (including pipe joints, tees, crosses, elbows, reducers, pipe caps, pipe flanges, etc.) of DN15 to DN200. This standard applies to pipes and fittings made of ABS resin and modified ABS resin pellets, extruded or injection molded, but not to glass fiber reinforced ABS pipes and fittings. HG/T 21561-1994 Acrylonitrile-butadiene-styrene (ABS) pipes and fittings HG/T21561-1994 Standard download decompression password: www.bzxz.net

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Document of the Ministry of Chemical Industry
Hua Jian Fa (1995) No. 180
Notice on Issuing the Chemical Industry Standard "Acrylonitrile-Butadiene-Styrene (ABS) Pipes and Fittings"
To the Chemical Industry Departments (Bureaus, Companies) of all provinces, autonomous regions, municipalities directly under the Central Government and cities with independent planning status, and all relevant design units:
The chemical industry standard "Acrylonitrile-Butadiene-Styrene (ABS) Pipes and Fittings" formulated by the Process Piping Design Technology Center of the Ministry of Chemical Industry and organized by China Wuhuan Chemical Shangcheng Company has been reviewed and approved as a recommended chemical industry standard, with the number HG/T21561-94. It will be implemented from August 1, 1995. This standard is managed by the Process Piping Design Technology Center of the Ministry of Chemical Industry; published and distributed by the Engineering Construction Standard Editing Center of the Ministry of Chemical Industry. Ministry of Chemical Industry
May 24, 1995
Industry Standard of the People's Republic of China
Acrylonitrile-butadiene-
Styrene (ABS) pipes and fittings
HG/T21561-94
Editor:
Approving Department:
China Wuhuan Chemical Engineering Company
2August 1, 1995
Implementation period:
Engineering Construction Standard Editing Center of the Ministry of Chemical Industry|| tt||Subject content and applicable drawings
Reference standards.
Nominal pressure and working pressure·
Structural dimensions of pipes and fittings
Outer diameter, wall thickness and tolerance of pipes
Pipe specifications
Structural dimensions of fittings
Connection type
Technical conditions for pipes and fittings…·
Technical requirements for pipes·
Technical requirements for fittings…·
Inspection and testing of raw materials and finished products
Raw material ABS Resin inspection
Pipe inspection
Fitting inspection
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7.4 Inspection rules
++++++++++++++++++++
Product packaging, marking, storage and transportation
Preparation instructions.
Subject content and scope of application
This standard specifies the structural dimensions, tolerances, technical conditions and inspection methods of acrylonitrile-butadiene-styrene (ABS) (hereinafter referred to as ABS) pipes and fittings (including pipe joints, tees, crosses, elbows, reducers, back caps, pipe flanges, etc.) with a size of DN15 to DN200. This standard applies to pipes and fittings made of ARS resin and modified ABS resin pellets by extrusion and injection molding, and does not apply to glass fiber reinforced ABS pipes and fittings. ABS pipes and fittings are mainly used in the chemical industry to transport certain corrosive fluids, and can also be used in food, medicine, pure water preparation and water treatment equipment. The operating temperature range is -20℃ to +70℃. GB4217-84
Reference standards
"Nominal outer diameter and nominal pressure of thermoplastic plastic pipes (metric series)"
"PN 1.0MPa flat-surface welded steel pipe flange with neck" GB 9116. 1-88.
ISO/TC138N832
"Acrylonitrile-butadiene-ethylene (ABS) flat female joint fittings for pressure pipes-female joint dimensions-series"
ISO/TC138N921
"Acrylonitrile-butadiene-ethylene (ABS) fittings for flat female joints for pressure-resistant pipes-assembly lengths
-Metric series
ISO 4065-1978
Thermoplastic plastic pipe·General pipe wall thickness table》a
Nominal pressure and working pressure
The nominal pressure of the pipe is the maximum pressure that the pipe can withstand when conveying water at 20℃.
The working pressure of the pipe is the maximum pressure that the pipe can withstand when in continuous use. The nominal pressure grades of ABS pipes are divided into 0.6MPa and 1.0MFa. The relationship between pressure and temperature of AHS pipes is shown in Table 3.0.4. Working pressure of ABS pipes and fittings at working temperature H
Nominal pressure
PN (MPa)
Structural dimensions of pipes and pipe wires
Outer diameter, wall thickness and tolerance of pipes
ABS pipes have a circular cross section, as shown in Figure 4.1. Its outer diameter, wall thickness, outer diameter tolerance and wall thickness tolerance shall comply with the provisions of Table 4.1.
Dongzi specification
AWS: Pipe specifications are expressed by D (outer diameter) × (wall thickness) & see Figure 4.1. . Pipe fitting structure dimensions
The structure of the pipe fitting is shown in Figures 4.3.1.1~4.3.1.9. Its structural dimensions shall comply with the provisions of 4.3.1
Combined with Tables 4.3.1.14.3.1.9. Nominal diameter
Outer diameter and tolerance
160+:5
225+8:r
Outer diameter, wall thickness and tolerance
PN 0.6MPa
Thickness and tolerance
Approximate mass
PN 1, [MPa
Wall thickness and tolerance approximate mass
Socket joint
Figure 4.3.1.1
Nominal diameter
Inner diameter and tolerance
50±8:5
140#:9
Socket joint dimension table
Table 4.3.1.1
Roundness tolerance
4. 3. 1. 2
Pipe joint
Figure 4. 3. 1. 2
Nominal diameter
Pipe joint dimension table
Table 4 3.1. 2
Assembly length
and tolerance
4. 3. 1. 3
Nominal diameter
Tee size table
Table 4. 3. 1. 3
Assembly length
Tolerance
4. 3. 1. 4
Figure 4. 3. 1, 4
Nominal diameter
Cross size table
Table 4. 3. 1. 4
Assembly length
and tolerance
26-1-5
.32.5±*
81Two stars
114±1
4. 3. 1. 5www.bzxz.net
90° elbow
4. 3. 1. 5
Nominal diameter
90° elbow dimensions
Table 4.3.1.5
Assembly length
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