Basic Info of Butterfly Valve Handles
The butterfly valve handle has a relatively narrow installation range, and is usually configured on centerline butterfly valves with a diameter of ≤250 and a maximum diameter of 300.
Otherwise, the butterfly valve torque may be greater than the operator’s torque, resulting in the valve not being able to open.
Paraments of Butterfly Valve Handles
| Material | Features |
| Catbon Steel | for industrial applications where high strength is required. cheap, durable and wear-resistant, but have poor corrosion resistance and require regular rust prevention treatment |
| Stainless Steel | for corrosive environments such as chemical, food, or pharmaceutical industries. |
| Aluminium | Used where lightweight yet strong handles are needed, Strong pressure resistance, beautiful appearance and long service life |
| Ductile Iron | Often used in cost-sensitive industrial applications. |
| Casting Iron | cheaper and lighter, but are prone to deformation |
Paraments of Butterfly Valve Handles
Cast Iron
| SIZE | A | E | B |
|---|---|---|---|
| DN50-DN80 | 220 | 16 | 30 |
| DN50-DN150 | 263 | 18 | 32 |
| DN200-DN300 | 356 | 26 | 40 |
| DN300 | 503 | 36 | 45 |
NOTE: For the top flange, F05 uses 220. F07 uses 263.
Aluminium
| SIZE | H | H1 | L | L1 | B | φ2 | φ3 | 2-φd1 | T*T |
|---|---|---|---|---|---|---|---|---|---|
| DN50-DN100 | 33 | 27 | 254 | 223 | 2.3 | 70 | 92 | 9.3 | 11*11 |
| DN125-DN150 | 33 | 27 | 254 | 223 | 2.3 | 70 | 92 | 9.3 | 14*14 |
| DN200 | 33 | 29 | 296 | 265 | 3 | 102 | 125 | 10.8 | 17*17 |
| DN250 | 34 | 29 | 380 | 340 | 3 | 102 | 125 | 10.8 | 22*22 |
