This valve has no fliction during open and close and no revelation in cut-off due to its special structure design. This makes it suit every difficult and special conditions. And its metal structrure and the fire-proof design lets it workable in the temperature-204C(-400F) to 815C (1500F) and in the place of durty medium (eg. Sand, short fibre).
The orbit ball valve is bestly used in the places of delation, releasing dust, transferring of natural gas; Liquid pipe, cut-off, by-path, produts isolation, ergent cut-off of transferring pipe, high rate of on-off and no revelation.
Especially, this type balls are produced under NACE Standard of USA.
*intrinsic fire-proof design
*can be repaired on line
*dual direction completely enclosed
*no spring and piston action
*workable in 427C/800F
*no high speed liquid in on/off and no partly score and corrode the enclosed side.
*being protected, the elastic enclosed side is mosaic in the metal base
*the fine metal base provides reliable enclose in the corrosion medium
*the enclose of gas enclosed pole gets certificate of the locale environment protection