What are the characteristics of hard sealed butterfly valves
Unique structure, flexible operation, labor-saving, convenient, high pressure, low impact, reliable sealing performance. Adopting a three-dimensional eccentric structure, the valve seat and butterfly plate have almost no friction and have a tighter sealing function. Disk seal is a type of soft hard laminated metal plate that has the dual advantages of metal hard sealing and elastic sealing, and has excellent sealing performance at both low and high temperatures.
The sealing surface of the valve body is made of welded stainless steel and cobalt based hard alloy, which is wear-resistant and has a long service life. The characteristics of butterfly valve flanges are as follows: there is no sliding friction between the butterfly plate and the sealing ring, the sealing surface is wear-resistant, the flange manufacturer has a long service life, the seal is reliable, and it is easy to adjust. Novel design structure, small overall size, and light weight.
The disc adopts double eccentricity, with fast opening and closing, and easy and effortless operation. How to maintain the stainless steel flange? The bolts of the stainless steel flange valve packing cover should be tightened evenly and not crushed to prevent the steel ball from moving or causing leakage.
The long-term storage condition of stainless steel flanges should be checked according to the plan. The surface of exposed surfaces should always be kept clean, free of dirt, and neatly stored in a dry and tidy place. When storing, the stainless steel flange should be kept dry and ventilated regularly, the cleaner should be kept clean, and the correct storage method should be followed.

Key points for selecting hard sealed butterfly valves:
1. The main control parameters of this butterfly valve are specifications and dimensions.
2. This butterfly valve is a single plate air valve with a simple structure, easy processing, low cost, and easy operation. However, its adjustment accuracy is poor and it is only suitable for use as a switch or rough adjustment in ventilation and air conditioning systems.
3. It can be operated manually, electrically, or zippered, and can be fixed at any angle within a 90 ° range.
4. Due to the limited load-bearing capacity of the single axis single valve plate, the service life of the valve is short under conditions of large pressure difference and high flow rate. This valve can be divided into sealed and ordinary types, insulated and non insulated types.
5. Butterfly valves only have dual position control, and the electric actuator is the same as multi leaf valves.