Product
Special wear-resistant ball valve for powder and slurry
FTS According to many years of experience in the production and manufacturing of ball valve in powder and slurry medium operating conditions, combined with the field operating conditions, it has developed a wear-resistant ball valve suitable for powder and slurry medium operating conditions. The valve from the structure to solve the powder, slurry conditions easy due to the medium scale caused by the valve opening checkpoint or valve leakage and other problems.
1. Powder, slurry media working conditions
2. Medium is easy to scale in working conditions
1. Anti hold dead
2. Reliable sealing
3. Low switching torque
4. fire-protection design
5. Long service life
Structural Characteristics
Instructions
Plate spring pre-tightening design
use the plate spring to provide a large constant sealing force, to prevent the valve seat due to medium scale floating leakage.
Valve seat sealing structure design
the valve seat uses two groups of graphite sealing ring and two sets of waveform spring to seal, not only can prevent the medium into the valve seat and the valve body scale between the valve seat stuck, at the same time can produce a double seal between the valve seat and the valve cap.
External leakage point seal
middle flange, lower fixed shaft, upper packing function are hard metal to hard, metal winding pad, O-ring multiple sealing, can also be sealed in the case of fire, the seal is more reliable.
Ball mouth hardening process
when the valve is opened, the position of the ball mouth is often washed by the medium. In order to improve the service life of the ball body, we will weld 20mm of the company cable alloy at the ball mouth.
Packing loading and sealing
the packing place adopts the disc spring loading design, and the long-term sealing is more reliable.
Anti-blowing valve stem
adopt high corrosion resistance super alloy, and conduct vacuum heat treatment to improve the surface hardness and prevent strain. Upper packing function structure, to prevent the valve stem blowing out of injury, can achieve online replacement of filler.
Seal at the bearing cavity
the bearing cavity is equipped with a sealing structure to prevent the medium from entering the bearing cavity and lead to the valve opening barrier, or even clinging.
Scraper design on the seat
scraper structure design is adopted on both sides of the sealing surface, so that the sphere and the seat have the self-cleaning function in the switching process, effectively prevent the accumulation and adhesion of the particles between the sphere and the valve seat, and ensure the smooth and continuous operation of the valve.