D343H-Y high-temperature and high-pressure hard-sealed butterfly valve, high-pressure hard-sealed butterfly valve,butterfly valve

The D343H/Y high-temperature and high-pressure hard-sealed butterfly valve is suitable for use as a closed-circuit sealing device, throttling device and regulating device in high, medium and low pressure, high and low temperature pipelines. It is widely used in industries such as petroleum, chemical engineering, metallurgy, mining, power, energy, transportation, farmland, hydropower, and construction. It is particularly suitable for working conditions with strict sealing requirements, such as gas pipelines, and is also applicable to corrosive media such as water, steam, oil products, air, electricity, dust gas, and nitric acid.

Structural features of D343H/Y high-temperature and high-pressure hard-sealed butterfly valve

The bidirectional metal-sealed butterfly valve has been improved and perfected. It adopts a precise elastic sealing ring in contact with the polished butterfly plate and is widely used as a regulating and shut-off device in industrial pipelines such as metallurgy, petrochemical, air, water supply and drainage, and municipal construction.

It features short structural dimensions, small volume, light weight and easy operation.

2. It adopts a semi-shaft structure, and the butterfly plate adopts a truss structure, which features high strength, large flow area, low flow resistance and energy saving.

3. It adopts an eccentric structure to achieve the effect of the butterfly plate separating at the moment of opening and sealing at the moment of closing contact, thereby extending the service life and achieving ideal sealing performance.

4. The sealing surface is made of stainless steel, featuring the dual advantages of metal sealing and elastic sealing. It has excellent sealing performance, corrosion resistance and a long service life in both low and high temperature conditions.

5. It has a bidirectional sealing function. During installation, it is not restricted by the flow direction of the medium (if only one direction of the medium needs to be controlled, the installation direction that is more conducive to sealing should be given priority), nor is it affected by spatial position. It can be installed in any direction.

The D343H/Y high-temperature and high-pressure hard-sealed butterfly valve is suitable for use as a closed-circuit sealing device, throttling device and regulating device in high, medium and low pressure, high and low temperature pipelines. It is widely used in industries such as petroleum, chemical engineering, metallurgy, mining, power, energy, transportation, farmland, hydropower, and construction. It is particularly suitable for working conditions with strict sealing requirements, such as gas pipelines, and is also applicable to corrosive media such as water, steam, oil products, air, electricity, dust gas, and nitric acid.

Packing of Standard Packing: 

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 470 gallon liquid totes Special package is available on request. E FORUs’  is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.