Shanghai Jianggong Valve Manufacturing Co., Ltd.
Shanghai Jianggong Valve Manufacturing Co., Ltd. Industrial valve expert With safe and reliable products To provide you with thoughtful services
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ANSI Standard Triple Offset Wafer Type Butterfly Valve For Industry Pipeline Use
Product introduction:
Triple eccentric butterfly valve is one type of butterfly valve in which the axis of the valve stem deviates from both the center of the disc and the center of the body, and the axis of the valve seat rotation is at a certain angle to the axis of the valve body channel. the valve body and valve seat of the triple eccentric hard seal butterfly valve are connected components, and the sealing surface of the valve seat is welded with heat-resistant and corrosion-resistant alloy materials. The multi-layer soft stacked sealing ring is fixed on the valve plate, triple eccentric butterfly valves nowadays are widely used in industrial pipelines such as metallurgy, power, petrochemicals, water supply and drainage, and municipal construction where the medium temperature is ≤ 425 ℃. They are used to regulate flow and cut off fluid.
Compared with traditional butterfly valves, this type of butterfly valve has high temperature resistance, easy operation, no friction during opening and closing, and compensates for sealing as the torque of the transmission mechanism increases when closing, improving the sealing performance and extending the service life of the butterfly valve. It has been widely used in many fields such as petroleum, chemical, metallurgy, electricity, and hydropower etc fields.
Product specification:
| 1 | Technical standard | Design and manufacturing | API609 |
| 2 | Length structure | ASME B16.10 | |
| 3 | Flange connection | ASME B16.5, ASME B16.47 | |
| 4 | Test and inspection | API598 | |
| 5 | Port size | Inch | 2” - 40” |
| 6 | Pressure nominal (lb) | Class | 150/300/600 |
| 7 | Test pressure (MPa) | Strength test (water) | 3.0/7.5/16.5 |
| 8 | Sealing test (water) | 2.2/5.5/12.1 | |
| 9 | Medium applicable | Water, steam, oil etc. | |
| 10 | Working temperature | -29~425℃ | |
| 11 | Connection way | Wafer, flange, lug | |
| 12 | Driven method | Worm gear, electric and pneumatic actuator | |
Product features:
1. The hard sealed butterfly valve adopts a three eccentric hard sealing structure, with less wear on the valve seat and butterfly plate, and has a tighter sealing function as it closes.
2. The sealing ring is made of stainless steel, which has the dual advantages of metal hard sealing and elastic sealing. It has excellent sealing performance in both low and high temperature conditions, corrosion resistance, and long service life.
3. The sealing surface of the butterfly plate is made of welded hard alloy, which is wear-resistant and has a long service life.
4. The large-sized butterfly plate adopts a quilted frame structure, with high strength, large overcurrent area, and low flow resistance.
5. According to user needs, hard sealed butterfly valves can be designed with bi-directional sealing function, which is not limited by the flow direction of the medium or affected by spatial location during installation, and can be installed in any direction.