OEM Wafer Butterfly Valve Manual Malleable Cast Iron Handle DN100 Supplier, Manufacturer
Product Description
Key Specifications
Characteristics
Wafer type connection with minimal space occupation. The valve body does not have an independent flange and is directly clamped between two pipeline flanges using double headed bolts. Its axial length is only 1/2~1/3 of that of a flange butterfly valve, and its radial size is compact, reducing weight by 30%~60%. It is particularly suitable for narrow installation environments such as dense pipelines, equipment rooms, and underground pipelines, while reducing labor/equipment costs for handling and installation.
Advantages
Butterfly valves have the characteristics of simple structure, small volume, light weight, low material consumption, small installation size, fast switch, 90 ° reciprocating rotation, and small driving torque. They are used to cut off, connect, and regulate media in pipelines, and have good fluid control characteristics.
Butterfly valves can transport mud and accumulate the least amount of liquid at the pipeline outlet. Under low pressure, good sealing can be achieved. Good regulation performance.
The streamlined design of the butterfly plate reduces fluid resistance loss, making it an energy-saving product.
The valve stem is a through stem structure that has undergone quenching and tempering treatment, and has good comprehensive mechanical properties, corrosion resistance, and abrasion resistance. When the butterfly valve is opened and closed, the valve stem only rotates and does not move up or down. The packing of the valve stem is not easily damaged and the seal is reliable. Fixed with the butterfly plate cone pin, the extended end is designed to prevent the valve stem from bursting out in case of accidental breakage at the connection between the valve stem and the butterfly plate.
The connection methods include flange connection, clamp connection, butt welding connection, and lug clamp connection.
The driving forms include manual, worm gear transmission, electric, pneumatic, hydraulic, electro-hydraulic linkage and other actuating mechanisms, which can achieve remote control and automated operation.
Application Scenarios
The sealing surface is made of elastic materials such as nitrile rubber (NBR), ethylene propylene diene monomer (EPDM), and fluororubber (FKM), embedded around the valve body or butterfly plate, with excellent sealing performance and a leakage level of up to ANSI B16.104 Class VI (bubble level seal). It is suitable for room temperature and clean media (such as water, air, natural gas, and weakly corrosive fluids), with a temperature range of usually -20 ℃~120 ℃.
Material Specifications
| Body | Plate | Rotating Shaft | Bushing | Seat | Operating Temperature (℃) |
|---|---|---|---|---|---|
| Ductile Iron | Electroplated Nodular Cast Iron | Stainless Steel | PTFE | EPDM Rubber | -45～+135 (Short-time -50～+150) |
| Ductile Iron | Ductile Iron | Carbon Steel | PTFE | Hypalon | -18～+135 (Short-time -18～+149) |
| Aluminum Bronze | Stainless Steel | - | - | EPDM Rubber | -45～+135 (Short-time -50～+150) |
| Stainless Steel | Titanium Steel | - | - | Neoprene Rubber | -7～+93 (Short-time -7～+107) |
| CF8M Stainless Steel | CF8M Stainless Steel | - | - | NBR Rubber | -12～82 (Short-time -12～+93) |
| Carbon Steel | Carbon Steel | - | - | Abrasion-Resistant Rubber | -10～+50 |
| - | CF8M Stainless Steel | - | - | Fluororubber | -23～+150 |
| - | - | - | - | Heat-Resistant EPDM Rubber | -20～+150 |
| - | - | - | - | PTFE | +10～+150 |
Dimensions
| DN | A | B | C | D | L | H | D1 | n- φ | K | E | n1- φ 1 | φ 2 | G | n2-M | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | inch | ||||||||||||||
| 50 | 2” | 161 | 80 | 42 | 52.9 | 32 | 84.84 | 120 | 4- φ 23 | 77 | 57.15 | 4- φ 6.7 | 12.6 | 118 | - |
| 65 | 2.5" | 175 | 89 | 44.7 | 64.5 | 32 | 96.2 | 136.2 | 4- φ 26.5 | 77 | 57.15 | 4- φ 6.7 | 12.6 | 137 | - |
| 80 | 3” | 181 | 95 | 45.2 | 78.8 | 32 | 61.23 | 160 | 8- φ 18 | 77 | 57.15 | 4- φ 6.7 | 12.6 | 143 | - |
| 100 | 4” | 200 | 114 | 52.1 | 104 | 32 | 70.80 | 185 | 4- φ 24.5 | 92 | 69.85 | 4- φ 10.3 | 15.77 | 156 | - |
| 125 | 5" | 213 | 127 | 54.4 | 123.3 | 32 | 82.28 | 215 | 4- φ 23 | 92 | 69.85 | 4- φ 10.3 | 18.92 | 190 | - |
| 150 | 6" | 226 | 139 | 55.8 | 155.6 | 32 | 91.08 | 238 | 4- φ 25 | 92 | 69.85 | 4- φ 10.3 | 18.92 | 212 | - |
| 200 | 8" | 260 | 175 | 60.6 | 202.5 | 45 | 112.89 76.35 | 295 | 4- φ 25 4- φ 23 | 115 | 88.9 | 4- φ 14.3 | 22.1 | 268 | - |
| 250 | 10" | 292 | 203 | 65.6 | 250.5 | 45 | 92.40 | 357 | 4- φ 29 | 115 | 88.9 | 4- φ 14.3 | 28.45 | 325 | - |
| 300 | 12" | 337 | 242 | 76.9 | 301.6 | 45 | 105.34 | 407 | 4- φ 29 | 140 | 107.95 | 4- φ 14.3 | 31.6 | 403 | - |
| 350 | 14" | 368 | 267 | 76.5 | 333.3 | 45 | 91.11 | 467 | 4- φ 30 | 140 | 107.95 | 4- φ 14.3 | 31.6 | 436 | - |
| 400 | 16’ | 400 | 309 | 86.5 | 389.6 | 51.2 72 | 100.47 102.42 | 515 525 | 4- φ 26 4- φ 30 | 197 | 158.75 | 4- φ 20.6 | 33.15 | 488 | - |
| 450 | 18" | 422 | 328 | 105.6 | 440.51 | 51.2 72 | 88.39 91.51 | 565 585 | 4- φ 26 4- φ 30 | 197 | 158.75 | 4- φ 20.6 | 38 | 539 | - |
| 500 | 20" | 480 | 361 | 131.8 | 491.6 | 64.2 82 | 95.99 101.68 | 620 650 | 4- φ 26 4- φ 33 | 197 | 158.75 | 4- φ 20.6 | 41.15 | 593 | - |
| 600 | 24" | 562 | 459 | 152 | 592.5 | 70.2 82 | 113.42 120.46 | 725 770 | 20- φ 30 20- φ 36 | 276 | 215.9 | 4- φ 22.2 | 50.65 | 816 | - |
| 700 | 28" | 624 | 520 | 163 | 695 | 66 82 | 109.65 840 | 840 | 24- φ 30 20- φ 36 | 300 | 254 | 8- φ 18 | 55 63.35 | 895 | 4-M33 |
| 800 | 32" | 672 | 591 | 188 | 794.7 | 66 82 | 124 950 | 950 | 24- φ 33 24- φ 39 | 300 | 254 | 8- φ 18 | 55 63.35 | 1015 | - |
| 900 | 36" | 720 | 656 | 203 | 864.7 | 118 | 117.57 | 1050 | 24- φ 33 | 300 | 254 | 8- φ 18 | 75 | 1115 | 4-M30 |
| 1000 | 40" | 800 | 721 | 216 | 965 | 142 | 129.89 | 1160 | 24- φ 36 | 300 | 254 | 8- φ 18 | 85 | 1230 | 4-M33 |
Packing
Standard export wooden case packaging
Frequently Asked Questions
The valve conforms to the EN593 international standard, featuring a concentric structural design and precision investment casting workmanship.
Standard operating temperature ranges from -20°C to 120°C. Specific seat configurations (such as EPDM, PTFE, or Fluororubber) support extended limits ranging between -45°C up to +150°C.
The wafer connection design eliminates the need for independent flanges, reducing axial length to 1/2~1/3 of flanged valves and reducing weight by 30%~60%. This makes it ideal for compact spaces and lowers overall handling/installation costs.
It delivers bidirectional sealing with a zero leakage rating up to ANSI B16.104 Class VI (bubble tight seal), suitable for room-temperature clean media including water, air, and natural gas.
Operation options include manual handle/lever, worm gear transmission, pneumatic, electric, hydraulic, and electro-hydraulic linkage mechanisms for standard or automated remote control.
All valves are packed using standard export wooden cases to protect the product during international sea and air freight.
