Bi-directional metal hard seal butterfly valve is mainly composed of valve body, butterfly plate, valve shaft, valve body sealring, butterfly plate seal ring, shaft sleeve, self-lubricating bearing,driving device, etc.It has the following characteristics:
Unique structure, small and light type, easy to operate
Adopt 3D eccentric structure, butterfly plate,seat sealing surface machining accuracy is high. When the butterfly plate isopened, the sealing surface is completely detached; the butterfly plate haslittle friction during the closing process, and the closing is light. It hasthe function of self-locking, self-sealing performance, stable and reliablesealing performance.
Sealing pair (butterfly plate sealing ring-bodysealing ring) material is stainless steel, and after special treatment, has thedual advantages of hard metal seal and elastic seal, corrosion resistance, wear resistance, high temperature resistance, long service life;
The design of "radial dynamic balance sealing structure" is adopted, which makes the opening resistance ofbutterfly plate very small and reliably realizes zero leakage of butterflyvalve inlet and outlet bidirectional seal. During the opening and closingprocess, the sealing surface of the butterfly plate along 360° circumferencecan be completed quickly and quickly, and the sealing action of closing contact automatically can be realized quickly and accurately.
Butterfly plate streamline design, with high strength, large flow area, small flow resistance, energy saving;
Reliable bidirection sealing function, is thepipeline system requires two-way cut off can be selected] products,installation is not limited by the flow of media, nor affected by the spaceposition, can be installed in any direction.
Bi-directional metal sealbutterfly valve is a new type butterfly valve developed and designed since1997. The new series butterfly valve scientifically adopts new technology, newtechnology and high quality material making, which makes the valve reliable,reduces and avoids maintenance during use, has long service life, and has goodservice benefit and social benefit. Its products have certain price advantagesand technical advantages in the industry 1.2 manual two-way metal sealbutterfly valve, electric two-way metal seal butterfly valve its technicalproperties and materials not only fully meet and meet, but also higher than andsuperior to the relevant national standards and technical requirements, as wellas product acceptance, delivery, installation and use requirements.