Mainly used for the oil-field artesian well mud's circulate with the close, connect the pattern connects for the trapezidal thread, set fast convenience, stiffness strong, safety firm, valve seat with the valve board to adopt the equal type elasticity seal, seal completely effective, open easy and convenient.A both ends of valve and pipings adopt the sphere seal or" O" type rubber ring seals, have to set the piping both ends of straight line degree request the anti higher - and seal completely the performance good.
Mainly used for the oil-field artesian well mud's circulate with the close, connect the pattern connects for the trapezidal thre |