The stainless steel sanitary butterfly valve as a component used to implement the inlet and flow control of the pipeline system has been widely used in many areas such as oil, chemicals, metallurgy, and hydropower. In the known sealing technology, its sealing form usually assumes a sealing structure, and the sealing material is rubber, polytetrafluoroethylene, etc. Due to the restriction of structural properties, it is not suitable for industries such as high-temperature resistance, high-pressure resistance, corrosion resistance, and wear resistance.
What is the function of stainless steel sanitary butterfly valves?
What should be taken into account when using stainless steel sanitary butterfly valves?
What is the function of stainless steel sanitary butterfly valves?
The stainless steel sanitary butterfly valve is usually less than 90's from fully opened to completely closed. The hygienic stainless steel seal and the seal seal seal have no self-inhibition.To position the valve panel, a screw drive must be mounted on the valve spindle. The use of a screw driver can not only make the throttle self-resistant, but also make the throttle stop in any position, but also improve the valve's performance. The characteristics of the industrial seal: high-temperature resistance, high applicable pressure range, large nominal width of the valve, the valve body consists of carbon steel, and the seal of the valve plate uses a metal ring instead of a rubber ring. The large high-temperature stainless steel sanitary butterfly valve is produced by welding steel sheets and is mainly used for exhaust ducts and gas pipelines of high-temperature media.
What should be taken into account when using stainless steel sanitary butterfly valves?
1. As the multi-layer soft and hard seal ring is mounted on the valve plate, the medium washes its sealing surface positively with the valve plate normally opened. After washing the soft sealing tape in the tin sandwich, it has a direct effect on the stainless steel sanitary butterfly valve. The sealing performance of the cap.
2. Due to construction conditions, this design is not suitable for valves with a diameter below DN200, as the overall design of the valve panel is too thick and the flow resistance is high.
3. Due to the principle of a three-fold eccentric structure, the seal between the sealing surface of the stainless steel sanitary butterfly valve counter and the valve seat depends on the torque of the transmission device to push the valve counter against the valve seat. In a positive current state, the higher the media pressure, the denser the density extrusion. When the medium flows back into the flow channel, when the medium pressure increases, when the device pressure between the valve counter and the valve seat is less than the medium pressure, the seal of the stainless steel toilet lid begins to leak.
How do you choose a stainless steel sanitary butterfly valve according to the specific situation?
1. In general, when throttling, controls, and the sludge medium, the structural length must be short and the opening and closing speed is fast (1/4 rotation). A low-pressure switch (small pressure differential), stainless steel sanitary butterfly valve is recommended.
2. Sanitary stainless steel locks can be used when two-position adjustment, narrowing channel, low noise development, cavitation and evaporation phenomena, low leakage into the atmosphere and abrasive media are available.
3. If the stainless steel sanitary butterfly valve under special conditions such as throttle setting, strict sealing or strong abrasion, low temperature (cryogenic), etc for double axes.
Xusheng Valves (Compass Valves) has been developing stainless steel sanitary butterfly valves for many years and is known as a "national brand leader in the stainless steel sanitary butterfly valving industry".Customers can therefore choose their products with confidence.
