Grooved butterfly type characteristics of the pneumatic valve and its scope of application

grooved butterfly type characteristics of the pneumatic valve and its scope of application:
butterfly pneumatic valve seal and metal sealing machine has two sealing type.
（ A) Using metal seal pneumatic valve generally live longer than elastic sealing pneumatic valve, but it is hard to be completely sealed. Metal sealing can adapt high working temperature, elastic seal has the defect of being limited by the temperature. If required control pneumatic valve used as flow control, mainly is the right choice of size and type of pneumatic valve.
SPDH triple eccentric two-way full metal sealing butterfly pneumatic valve:
all metal seal butterfly pneumatic valve, is my company of new and high technology development department to develop a new structure of the pneumatic butterfly valve. The highest pressure level of the pneumatic valve ( 。 MPa） , temperature - shall apply ℃, - ℃, the maximum nominal diameter, has manufacturing to mm. The factory in the development of all metal seal butterfly pneumatic valve, invented the triple eccentric oblique cone all metal sealing ring, sealing performance, and can adapt to the occasion of medium pressure and sudden changes in temperature.
as the butterfly pneumatic valve is full metal structure commonly, do not contain any asbestos, graphite class soft packing, not cause pollution to the medium, so especially for petrochemical, power generation, metallurgy, pharmaceutical, beverage, industrial requirements. All metal hard seal butterfly pneumatic valve pneumatic valve body can be divided into cast steel and welding two forms, the structure adjustment of pneumatic valve if replace all metal sealing ring with tetrafluoroethylene as sealing material, can be four fluorine pneumatic valve sealing butterfly. This kind of butterfly pneumatic valve can achieve zero leakage. Butterfly pneumatic valve seal USES all metal sealing ring, pneumatic valve seat sealing surface using ontology or direct welding materials, sealed performance is reliable.
（ 2) Elastic sealing pneumatic valve, sealing ring to be set on the pneumatic valve body or attached to the butterfly plate peripheral.
. Purpose: the butterfly pneumatic valve is suitable for use in food, medicine, petrochemical industry, industry, environmental protection and for adjusting flux on high-rise buildings and pipelines and cutting fluid best position.
. Structure features: this butterfly pneumatic valve is absorption and digestion of foreign technology, combined with the domestic users opinions and accumulated experience in production and carefully developed a new generation of products:
) Three-dimensional eccentric structure, pneumatic valve sealing ring USES the elastic metal ring, the butterfly plate with pneumatic valve sealing surface of uniform and reliable contact, can achieve its seal five slope;
） Unique structure, flexible operation, energy saving, convenient, long service life;
） High temperature resistant, corrosion resistance, wear resistance of three-dimensional eccentric.