| Name: | Wafer Type Cast Iron Butterfly Valve Manufacturers |
| Design confirms: | API 609, BS EN 593, MSS SP-67, BS5155 |
| Top Flange: | ISO5211 or factory standard |
| Tightness check: | API 598, ISO 5208, EN12266-1, DIN3230, BS5155 |
| Face-to-face conform: | API 609, ISO 5752, BS EN 558, BS 5155, MS SP-67, DIN3202 |
| Normal pressure: | PN10/PN16/PN25 or 10Bar/16Bar/25Bar or class 125/150 |
| Nominal diameter: | DN25~DN1200 (1 |
| Operator: | Handle lever, worm gearbox(reducer), electric or pneumatic actuators etc. |
| Suitable medium: | Petroleum, chemical industry, water, oil, gas etc. |
| Working temperature: | -10~110ºC |
| Body/Disc: | Cast Iron(CI): ASTM A126CL. B, DIN1691 GG25, EN 1561 EN-GJL-200, GB12226 HT200; Ductile Iron(DI): ASTM A536 65-45-12, DIN 1693 GGG40, EN1563 EN-GJS-400-15, GB12227 QT450-10 |
| Stem: | Zinc Plated Carbon Steel; Stainless Steel: ASTM A276 Type 316/304/410/420, ASTM A582 Type 416 |
| Seat: | NBR, EPDM, Neoprene, Viton, PTFE, BUNA, Hypalon. |
| Bushing: | PTFE, Nylon, Lubricated Bronze |
Wafer Butterfly valve Fig. 401G
UTD’s Butterfly valves are applied across many industries for flow control, including water treatment, oil and gas, HVAC, and the chemical, food and beverage… Their use is favored for applications involving large flow rates, where a simple, fast, and durable.
| Part | Material |
| Body | Ductile Iron (GGG50) |
| Disc | CF8/CF8M |
| Seat | EPDM |
| Stem | SUS416/420 |
| Bushing | PTFE |
| O-Ring | NBR |
| Index Plate | Aluminum |
| Handle | Aluminum |
| Bolt-Nut | A2-70 |
| Disc Pin | SUS416/420 |
Butterfly valves are applied across many industries for flow control, including water treatment, oil and gas, HVAC, and the chemical, food and beverage… Their use is favored for applications involving large flow rates, where a simple, fast, and durable valve
UTD’s Butterfly valves are quarter-turn, compact, and lightweight valves used to regulate, stop, or start the flow of fluids in a pipeline. Key features include a disc that rotates on a central shaft to control flow, quick operation, high flow capacity with minimal pressure drop, and a compact design that requires small space.


