Grooved Split Flange

Size: 2”-10”(DN50-DN250)
Material: Ductile iron ASTM A536, 65-45-12
Dimension: ISO6182、AWWA C606、GB 5135.11
Connection:ASME B36.10、ASTM A53-A53M、ISO 4200
Thread: If have ISO 7-1,BS 21,BSPT, NPT,ASME B1.20.1
Pressure Rating: 175PSI-500PSI
Surface Treatment: Red Painting,Epoxy Coating ,Hot-Dip Galvanized,Electroplated
Bolt & nut: ASTM A449/ CLASS 8.8/ ISO 898
Gasket: EPDM, Nitrile, Silicone rubber, etc.
Certificate: UL Listed / FM Approved
Application: Fire Protection,Waterworks,HVAC,Plumbing,GAS,Irrigation,or other piping systems

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Product Description

Products Details

Ductile Iron Grooved split flange.It have two Standard flange,EN grooved flange two-piece (Flanged adaptor) andANSI grooved flange two-piece (Flanged adaptor). According to surface coating .red painting split flange ,epoxy red Grooved cross ,galvanized split flange.epoxy blue Grooved split flange.Flange is referred to as flange, which is only a general term, usually refers to the opening of several fixing holes around the perimeter of a disk-like metal body for connecting other things. This thing is widely used in machinery, so the appearance is also strange, as long as it is called a flange, its name is derived from the English flange.

Product Drawing

Available size
Size Bolting   (n x bolt size) Flanged   end connection Ref.   No.
2″ / DN50 / 60.3mm 4   x 5/8″ Class   125 / 150 G4601   (UL/FM)
2-1/2″ / DN65 / 73mm 4   x 5/8″ Class   125 / 150 G4602   (UL/FM)
3″ / DN80 / 88.9mm 4   x 5/8″ Class   125 / 150 G4603   (UL/FM)
4″ / DN100 / 114.3mm 8   x 5/8″ Class   125 / 150 G4604   (UL/FM)
5″ / DN125 / 141.3mm 8   x 3/4″ Class   125 / 150 G4605   (UL)
6″ / DN150 / 168.3mm 8   x 3/4″ Class   125 / 150 G4606   (UL/FM)
8″ / DN200 / 219.1mm 8   x 3/4″ Class   125 / 150 G4607   (UL/FM)
10″ / DN250 / 273mm 12   x 7/8″ Class   125 / 150 G4608   (UL/FM)
12″ / DN300 / 323.8mm 12   x 7/8″ Class   125 / 150 G4609   (UL)


ANSI Split flange two-piece (flange adaptor) is designed to connect flanged parts directly into slotted parts without the need for additional slot coupling.

EN groove flange two-piece (flange adaptor) is designed to connect flanged parts directly into slotted parts without the need for additional slot couplings.

This split flange has a flange on the edge and can be fixed with bolts, and in pipeline engineering, grooved pipe flange is mainly used for pipe connection. Add a sealing point between the two flange plates and bolt them out. Two working pressure options, PN16 and PN25 are installed faster than threaded flanges and butt flanges. The installation space is also much smaller than other types of flanges.

Application and Case

Products are used in fire protection system, water system, HVAC system, plumbing, gas system, irrigation system, etc.These products are used in many projects , such as China Taiwanese Building 101, Xiamen Building,Wuhan Expo Building and other famous landmark projects.

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Grooved Split Flange