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Parameter/Standard
Design standards: GB/T 12238-2008, BS EN 593, AP1609-2009
Inspection standard: GB/T 13927-2008
Working pressure: PN10/16
Connection standards: GB5135.11, GB/T 17241.6, BS EN 1092
Standard for top flange: ISO 5211
Operating temperature: 0°C to 80°C
Casting material standards: GB/T 9441, BS EN 1563-2008
Valve stem: spline connection, parallel square, diagonal square, flat square
Surface treatment: Spray painting or epoxy resin powder coating.
Material list
order number | part | standard layout | Optional configuration |
1 | valve body | Ductile cast iron QT450-10 | |
2 | Butterfly blade | Ductile iron QT450-10 + EPDM rubber | Ductile iron QT450-10 + Nitrile rubber |
3 | O molding ring | acrylonitrile-butadiene rubber | EPDM |
4 | valve shaft | Stainless steel 420 | Stainless steel 304/316/416/431 |
5 | O molding ring | acrylonitrile-butadiene rubber | EPDM |
6 | valve shaft | Stainless steel 420 | Stainless steel 304/316/416/431 |
7 | Handle | Ductile cast iron QT450-10 | Aluminum material |
8 | worm gear | Ductile cast iron QT450-10 |
Note: If you need to select a non-standard configuration, specify it in the order or contract.
Structure size
Nominal diameter DN | size （mm） | ||||||||||||||||||||
Inch | mm | T1 | T2 | T3 | L | D | OD | C | A | B | K | H | H1 | H2 | J | M | S | ISO5211 | E | N | W |
2" | 50 | 65 | 89 | 32 | 81 | 50.6 | 60.3 | 57.15 | 15.88 | 7.93 | 90 | 206 | 158 | 52 | 114 | 150 | 14 | F07 | 70 | 4 | 10 |
2.5” | 65 | 71 | 102 | 32 | 97 | 60.8 | 73 | 69.09 | 15.88 | 7.93 | 90 | 206 | 158 | 52 | 114 | 150 | 14 | F07 | 70 | 4 | 10 |
2.5" | 65 | 71 | 102 | 32 | 97 | 60.8 | 76.1 | 72.26 | 15.88 | 7.93 | 90 | 206 | 158 | 52 | 114 | 150 | 14 | F07 | 70 | 4 | 10 |
3" | 80 | 81 | 109 | 32 | 97 | 76 | 88.9 | 84.94 | 15.88 | 7.93 | 90 | 206 | 158 | 52 | 114 | 150 | 14 | F07 | 70 | 4 | 10 |
4" | 100 | 95 | 128 | 32 | 116 | 98.6 | 114.3 | 110.08 | 15.88 | 9.53 | 90 | 206 | 158 | 52 | 114 | 150 | 16 | F07 | 70 | 4 | 10 |
5" | 125 | 111 | 141 | 32 | 148 | 123 | 139.7 | 135.48 | 15.88 | 9.53 | 90 | 206 | 158 | 52 | 114 | 150 | 16 | F07 | 70 | 4 | 10 |
5" | 125 | 111 | 141 | 32 | 148 | 123 | 141.3 | 137.03 | 15.88 | 9.53 | 90 | 206 | 158 | 52 | 114 | 150 | 16 | F07 | 70 | 4 | 10 |
6" | 150 | 133 | 153 | 32 | 148 | 148.2 | 165.1 | 160.9 | 15.88 | 9.53 | 90 | 206 | 158 | 52 | 114 | 150 | 20 | F07 | 70 | 4 | 10 |
6" | 150 | 133 | 153 | 32 | 148 | 148.2 | 168.3 | 163.96 | 15.88 | 9.53 | 90 | 206 | 158 | 52 | 114 | 150 | 20 | F07 | 70 | 4 | 10 |
8" | 200 | 164 | 184 | 45 | 133 | 198.8 | 219.1 | 214.4 | 19.05 | 11.1 | 125 | 310 | 239 | 69 | 167 | 300 | 26 | F10 | 102 | 4 | 12 |
10" | 250 | 196 | 216 | 45 | 159 | 252.4 | 273 | 268.28 | 19.05 | 12.7 | 125 | 310 | 239 | 69 | 167 | 300 | 26 | F10 | 102 | 4 | 12 |
12" | 300 | 226 | 254 | 45 | 165 | 300.6 | 323.9 | 318.29 | 19.05 | 12.7 | 125 | 307 | 229 | 73 | 190 | 300 | 28 | F10 | 102 | 4 | 12 |
Note: During installation of the trench-type butterfly valve, the butterfly plate must not be fully open but should remain in a half-closed position, ensuring it does not protrude beyond the valve body.
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