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Worm gear operation WCB Manual Triple Offset Hard Seal Flange Butterfly Valve
Product Overview
Flange type hard seal butterfly valves are applied to electric power, heat, high temperature gas, combustible gas, hot air, urban heating, water supply, sewage treatment, chemical industry, metallurgy, sugar making, papermaking, shipbuilding, aviation, steel and other enterprises.
Features
1, the butterfly plate seal ring is a soft and hard multi-layer stacked metal ring. It has the double advantages of metal hard sealing and elastic sealing. It has excellent sealing performance both at low temperature and high temperature.
2. With three dimensional eccentricity structure, the seat and the butterfly plate have almost no friction, and have the tighter sealing function, which has the function of adjusting.
3. The sealing cover of the valve body of the flanged hard seal butterfly valve is overlaid with cobalt based hard alloy. The seal face is wearable and has long service life.
4. The flange type hard seal butterfly valve is resistant to high temperature and corrosion resistance.
Technology parameters
| DN | (NM) | DN100-DN200 | |||||
| PN | (Mpa) | 0.25 | 0.6 | 1.0 | 1.6 | 2.5 | 4 |
| Pressure Testing | Strength test | 0.375 | 0.9 | 1.5 | 2.4 | 2.75 | 6 |
| seal test | 0.275 | ||||||
| bubble test | 0.5-0.8Mpa | ||||||
| applicable medium | water/oils/steam/gas/acids/alkali etc | ||||||
| applicable temperature | -40℃-570℃ | ||||||
Main out line dimensions


Guangzhou RotK Valve Technology Co., Ltd. is a professional enterprise specializing in the development, production and sales of valve electric, pneumatic control and automatic control systems.
For more than ten years, the company has brought together the elites of valve production design and automation control industry. Based on technological innovation, research and development, and based on the valve industry, the company has established a team with strong technical strength, excellent equipment and rich experience in production design. . Over the years, our company has accumulated a wealth of experience in the production of various types of valve electric actuators and automation control products, and has made outstanding achievements in strengthening modern management and combining high-tech development. In the production process, every link is strictly in accordance with the ISO9001 international quality system, which strictly guarantees the quality of the products.
Product Applications






WCB Manual Triple Offset Hard Seal Flange Butterfly Valve
WCB Manual Triple Offset Hard Seal Flange Butterfly Valve
WCB Manual Triple Offset Hard Seal Flange Butterfly Valve
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