Hard seal ball valve 4 big characteristics
Hard seal ball valve features a:
Wear resistance;As a result of the hard seal ball valve valve core is alloy spray welding, sealing ring is alloy steel welding, so hard seal ball valve when the switch is no wear and tear.(it's hardness coefficient is 65-70) of hard seal ball valve features;Good sealing performance;Because of the hard sealing ball valve's sealing is using artificial grinding, until the valve core and seal perfectly before using.So he sealed performance is reliable.Hard seal ball valve features three;Light switch;Due to adopting the spring hard seal ball valve at the bottom of the sealing ring seal and valve core embrace together tightly, so in the outside powers over spring pre-tightening force when the switch is very light.Hard seal ball valve features four;Long service life, has been widely used in petroleum, chemical, power, papermaking, atomic energy, aviation, rockets and other departments, as well as People's Daily life.