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Insulated jacket flange butterfly valve - hard seal BWD343H

Insulated jacket flange butterfly valve - hard seal BWD343H

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Product parameters

The insulation jacket flange butterfly valve is mainly connected with double flanges to prevent some special media from solidifying. The jacket can use steam or hot oil to isolate the internal medium. The main material is carbon steel or stainless steel. The operation method can be worm gear operation, electric or pneumatic actuator.

Insulated cast steel hard sealed high-temperature resistant butterfly valve

保温夹套法兰蝶阀-硬密封BWD343H(图1)

Most suitable for liquid media that are prone to solidification and high viscosity. At the same time, it can effectively reduce the heat loss of the medium in the pipeline. Integrated jacket design ensures even heating and cooling. The outer side of the jacket is welded with a jacket connecting pipe to the valve body, allowing a maximum pressure of 1MPa for steam or cold water. Mainly used for conveying high viscosity media that solidify at room temperature in petroleum, chemical, pharmaceutical, food and other systems.

This product belongs to our butterfly valve range. For sizing, pressure rating, material and actuator selection, see our valve technical resources.

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Tekron & Trekre

Butterfly Valve FAQs

01 Which butterfly valve seat design should be used?
Common designs include resilient seats and metal seats. Resilient-seated valves are generally used for water, air and low-leakage services at moderate temperatures. Metal-seated valves are selected for higher temperature, pressure or erosive industrial media. The final choice depends on the medium, temperature, pressure and required leakage class.
02 How do wafer, flanged and lug butterfly valves differ?
Wafer valves are compact and require little installation space. Flanged valves provide a stable pipeline connection for larger sizes or higher pipe loads. Lug valves can facilitate one-sided removal and maintenance. Selection depends on the piping standard, space, size and maintenance method.
03 Should a butterfly valve use pneumatic, electric or manual actuation?
Manual or gearbox operation suits local isolation. Pneumatic actuators provide fast response for frequent operation and hazardous areas. Electric actuators support remote control and modulation. The actuator must be sized for valve size, differential pressure, torque and control signal.
04 Which operating data are required for butterfly valve selection?
Provide the medium, design temperature, design pressure, nominal size, connection standard, body and seat materials, leakage class, flow direction, operating frequency, actuation method and any enclosure or explosion-protection requirements.