This standard specifies the dimensions, technical conditions, inspection, marking and packaging of reinforced polypropylene (FRPP) pipes and fittings (including elbows, tees, reducers, pipe joints, etc.) with a nominal outer diameter of D17 to D500. This standard applies to pipes extruded from granular materials of glass fiber (content 20±2%) reinforced polypropylene (FRP) and molded fittings, which can transport corrosive media such as acids, alkalis and salts at temperatures of -20 to 120°C. HG 20539-1992 Reinforced Polypropylene (FRPP) Pipes and Fittings HG20539-1992 Standard download decompression password: www.bzxz.net

Industry Standard of the People's Republic of China
HG 20539-92wwW.bzxz.Net
Reinforced polypropylene (FRPP) pipes and fittings
1993-01-18
1993-04-01
Ministry of Chemical Industry of the People's Republic of China
Industry Standard of the People's Republic of China
Reinforced polypropylene (FRPP) pipes and fittings
HG 20539-92
Editor: China Global Chemical Engineering Corporation Approval Department Ministry of Chemical Industry
Ministry of Chemical Industry Engineering Construction Standard Editing Center
Beijing, 1993
Ministry of Chemical Industry Document
Chemical Base Development (1993) No. 29
Notice on Issuing the Chemical Industry Standard "Reinforced Polypropylene Pipes and Fittings"
To all provinces, autonomous regions, municipalities directly under the Central Government, and independently planned cities, and all relevant design and construction units:
The Chemical Industry Standard "Reinforced Polypropylene (FRPP) Pipes and Fittings" compiled by the Process Piping Design Technology Center of the Ministry of Chemical Industry and China Global Chemical Engineering Corporation has been approved for issuance after review. The standard number is HG20539-92 and will be implemented from April 1, 1993.
This standard is managed by the Process Piping Design Technology Center of the Ministry of Chemical Industry and published and issued by the Engineering Construction Standard Editing Center of the Ministry of Chemical Industry. Ministry of Chemical Industry
January 18, 1993
Subject content and scope of application
Cited standards·
Nominal pressure and nominal external weight
Connection type
Dimensions and tolerances
Technical requirements
10 Transportation and storage
Appendix A
Installation requirements
Preparation instructions
1 Subject content Scope of application
This standard specifies the dimensions, technical conditions, inspection, marking and packaging of reinforced polypropylene (FRPP) pipes and fittings (including elbows, tees, reducers, pipe joints, etc.) with a nominal external diameter of D17 to D500.
This standard applies to pipes and fittings extruded from glass fiber (content 20±2%) reinforced polypropylene (FRPP) granules, which can transport corrosive media such as acids, alkalis and salts at temperatures between -20 and 120°C. Reference standards
GB9112~9131-88 "Compilation of National Standards for Steel Pipe Flanges" GB901-88 "Equal Length Studs"
ISO 161/ 1
"Thermoplastic pipes for fluid transportation - Nominal outside diameter and nominal pressure"
Part I Metric series
Part II Imperial series
ISO3609 "Tolerances on outside diameter and wall thickness of polypropylene (PP) pipes" DIN16962 "Pipe joints and fittings for polypropylene (PP) pressure pipes" ANSIB16.5-81 "Pipe flanges and flange fittings" 2
3 Nominal pressure and nominal outside diameter
3.0.1 This standard specifies the nominal pressure of reinforced polypropylene (FRPP) pipes and fittings as 0.6 and 1.0 MPa, and the nominal outside diameter is D17~~D500, which is equivalent to ISO161 standard.
3.0.2 The allowable operating pressure of reinforced polypropylene pipe (FRPP) at various temperatures is shown in Table 3.0.2
The allowable operating pressure of reinforced polypropylene pipe at various temperatures mm
Nominal outer diameter
75~~200
225~500
75-200
225-400
3.9~~10.3||t t||18.7~33.2
Allowable working pressure at the following temperatures
100℃
120℃
Connection type
Connection type of reinforced polypropylene (FRPP) pipes and fittings: Nominal outer diameter D75D500 adopts hot melt extrusion welding and flange (raised face neck welding flange and loose sleeve flange) connection, nominal outer diameter D17~D60 adopts threaded connection. 5
5. Dimensions and tolerances
L-4000-6000
Outer diameter D1
Pipe dimensions and tolerances
Nominal pressure 0.6MPa
Wall thickness s
Approximate weight
Nominal pressure 1.0MPa
Friction thickness s
Approximate weight
5.1.1 Raised face butt welding flange joint
Raised face butt welding flange joint dimensions
Nominal diameterOuter diameter of pipeOuter diameter of flangeThickness of gasket in screw inspection holeCenter circle diameter
Note: ①
Nominal pressure is 1.0MPa.
For flange, see 5.1.2.
For gasket, see 5.1.7.
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