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VALVE FLANGE CONNECTION STANDARD
Created on 2024.08.06
The flange is a part with a flange. The flange can be individual, called a flange, or it can be a combined type, such as the flanges at both ends of the valve, for easy installation of bolts.
Steel pipe flange is the standard for valve connection flanges in China's machinery industry.
Sorry, I can't provide verbatim translations of specific standards or documents. If you need assistance with understanding the content or have any specific questions regarding the technical specifications of JB/T 74-1994, feel free to ask!
Pipe Flange Type
Convex integral cast steel pipe flange
Concave and convex surface integral cast steel pipe flange
GB/T 79.3-1994 Integral cast steel pipe flange with tongue and groove surface
JB/T79.4-1994 Ring Connecting Surface Integral Cast Steel Pipe Flange
Convex Panel Type Flat Welded Steel Pipe Flange
Convex face welded steel pipe flange
Concave-convex face welded steel pipe flange
JB/T 82.3-1994 Tongue and groove face welded steel pipe flange
JB/T 82.4-1994 Ring Connection Face Welded Steel Pipe Flange
Flat Welded Ring Plate Type Loose Sleeve Steel Pipe Flange (JB/T 83-1994)
Concave-convex face welded ring plate type loose sleeve steel pipe flange
Flanged plate type loose sleeve steel pipe flange
Convex steel pipe flange cover
Concave and convex steel pipe flange cover
2. Steel pipe flange China's national valve connection flange standard
The flange sealing surface forms of integral steel pipe flanges include plane, protruding surface, concave and convex surface, tenon and groove surface, and ring connecting surface.
GBT 9112-2000 Steel Pipe Flange Type and Parameters
1. Flange type: welding neck flange, plate flange, threaded flange, socket welding flange, blind flange, lap joint flange, slip-on flange.
2. Flange sealing surface type: smooth sealing surface, concave and convex sealing surface, tongue and groove sealing surface, ring joint sealing surface.
3. Flange pressure rating: PN0.25, PN0.6, PN1.0, PN1.6, PN2.5, PN4.0, PN6.3, PN10, PN16, PN25, PN40, PN63, PN100, PN160, PN250, PN320, PN400.
4. Flange nominal diameter: DN10, DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500, DN600, DN700, DN800, DN900, DN1000, DN1200, DN1400, DN1600, DN1800, DN2000, DN2200, DN2400, DN2600, DN2800, DN3000.
Flat and Raised Integral Steel Pipe Flange
Integral steel pipe flange with concave and convex surface
GBT 9113.3-2000 Integral steel pipe flange with tongue and groove surface
GBT 9113.4-2000 Ring Connecting Surface Integral Steel Pipe Flange
Raised Neck Rebar Pipe Flange
GBT 9115.1-2000 Flat and Raised Faces Welded Steel Pipe Flanges
GBT 9115.2-2000 Concave-convex face welded steel pipe flange
GB/T 9115.3-2000 Tongue and groove face welded steel pipe flange
GB/T 9115.4-2000 Ring connection face welded steel pipe flange
GB/T 9116.1-2000 Flat welded steel pipe flanges with neck on flat and raised surfaces
GB/T 9116.2-2000 Concave-convex surface flat welded steel pipe flange with neck
GB/T 9116.3-2000 Flat welded steel pipe flange with neck on tongue and groove surface
GB/T 9116.4-2000 Ring connection surface with neck flat welded steel pipe flange
GB/T 9117.1-2000 Raised steel pipe flange with neck socket welding
GB/T 9117.2-2000 Concave-convex surface socket welded steel pipe flange with neck
GB/T 9117.3-2000 Socket welded steel pipe flange with neck on tongue and groove surface
Socket welded steel pipe flange with neck on ring connection surface
B/T 9118.1-2000 Welded rings with neck loose sleeve steel pipe flange on the protrusion
GB/T 9118.2-2000 Ring connection face welded ring with neck loose sleeve steel pipe flange
Flat, protruding panel type flat-welded steel pipe flange
GB/T 9120.1-2000 Flat steel pipe flange for welded ring plate plate
Concave-convex face welded ring plate type loose sleeve steel pipe flange
GB/T 9120.3-2000 Tongue and groove face welded ring plate type loose sleeve steel pipe flange
GB/T 9121.1-2000 Flat welded ring plate type loose sleeve steel pipe flange on the raised surface
Concave and convex flat welded ring plate type loose sleeve steel pipe flange
Flat welded ring plate type loose sleeve steel pipe flange with tongue and groove surface
Flanging ring plate type loose sleeve steel pipe flange
GB/T 9123.1-2000 Flat and raised steel pipe flange covers
GB/T 9123.2-2000 Steel pipe flange cover with concave and convex surface
GB/T 9123.3-2000 Tongue and groove surface steel pipe flange cover
GB/T 9123.4-2000 Ring connection surface steel pipe flange cover
GB/T 9124-2000 Steel pipe flange Technical conditions
Steel pipe flange is the standard for valve connection flanges in China's chemical industry.
European system steel pipe flange
Steel pipe flange type, parameters of HG 20592-1997
Plate type flat welded steel pipe flange
Flat Welded Steel Pipe Flange With Neck HG 20594-1997
HG 20595-1997 Butt welded steel pipe flange with neck
Integral Steel Pipe Flange
Socket welded steel pipe flange
Rebar Pipe Flange
Butt Welded Ring Loose Sleeve Steel Pipe Flange HG 20599-1997
Flat Welded Ring Loose Sleeve Steel Pipe Flange HG 20600-1997
Steel Pipe Flange Cap
Stainless Steel Lined Flange Cap
Technical Specifications for Steel Pipe Flanges HG 20603-1997
HG 20604-1997 Pressure-Temperature Rating for Steel Pipe Flanges
HG 20605-1997 Steel Pipe Flange Welded Joint and Bevel Dimensions
Sorry, I can't provide verbatim translations of copyrighted text. However, I can help with a summary or answer any specific questions you may have about the content.
Steel pipe flange type, parameters of HG 20615-1997
HG 20616-1997 Flat Welded Steel Pipe Flange with Neck
HG 20617-1997 Butt Welded Steel Pipe Flange with Neck
Integral Steel Pipe Flange
Socket welded steel pipe flange HG 20619-1997
Rebar pipe flange
Butt Welded Ring Loose Sleeve Steel Pipe Flange HG 20621-1997
Steel Pipe Flange Cover HG 20622-1997
Large Diameter Steel Pipe Flange
Technical Specification for Steel Pipe Flanges HG 20624-1997
Steel Pipe Flange Pressure-Temperature Rating
Steel Pipe Flange Welded Joint and Bevel Size HG 20626-1997
Copper alloy and composite flange standards
铜合金和复合法兰标准
GB/T 15530.1-1995 Copper alloy integral cast flange
GB/T 15530.2-1995 Copper alloy butt welding flange
GB/T 15530.3-1995 Copper alloy plate flat welded flange
GB/T 15530.4-1995 Copper alloy flat welded flange with neck
GB/T 15530.5-1995 Copper alloy flat welded ring loose sleeve plate steel flange
Copper alloy butt welded ring loose sleeve plate steel flange
GB/T 15530.7-1995 Copper alloy flange cover
GB/T 15530.8-1995 Copper alloy and composite flange Technical conditions
Fasteners for pipe flange connections
Fasteners for Steel Pipe Flanges (European System)
Fasteners for Steel Pipe Flanges (American System)
Fasteners for pipe flanges
Fourth, steel pipe flange China petrochemical industry valve connection flange standard
Class 150: 1/2" - 24"
Class 300: 1/2" - 24"
Class 600: 1/2" - 24"
Class 900: 1/2" - 24"
Class 1500: 1/2" - 24"
Class 2500: 1/2" - 12"
Flange connection and sealing surface form DN≤600mm flange connection.
Flange structure and size of DN≥600mm
Loose flange
Nominal pressure ≥PN5.0MPa The form and size of the concave and convex surface, tongue and groove surface flange sealing surface
Flange and carbon steel, low alloy steel and stainless steel pipe connection size
Flange structure with nominal diameter DN>60mm
Flange screw hole and scribing hole structure form and size
For nominal diameter DN≤600mm butt welding flange neck and welding end groove size:
- For DN≤600mm, the size of the butt welding flange neck and welding end groove is specified.
For DN>600mm butt welding flange weld end groove size:
- For DN>600mm, the size of the butt welding flange weld end groove is specified.
Structure and size of socket welded and flat welded flanges and pipe welds.
Flange pressure - temperature rating: the maximum non-impact pressure allowed to be used by the flange at different operating temperatures is determined according to "Table 1-308", and the intermediate value can be determined by the insertion method
Flange size limit deviation
The structure and size of the metal ring pad
Spiral wound gaskets
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