Pigging valve

时间:2020-05-24 点击数:5396 发布人:本站

Product features:

Pigging valve is a new type of valve designed on the basis of T - type three - way fixed ball valve structure. When cleaning the pipeline, put the pig into the cavity inside the ball of the pigging valve, and rotate 90° through the ball in the body of the perpendicular three-way valve. When the ball channel and the pipeline channel are on the same axis, the pig is launched from one pigging valve under the action of the fluid pressure in the pipeline, and the other pigging valve is blocked by the bar and removed. Pigging valves must be used in pairs, one to transmit and the other to receive

 

Selection of pig

The pig is a dynamic element to perform pigging operation. Under the action of fluid pressure in the pipeline, it moves along the axis of the inner hole of the pipeline, and achieves pigging function by using the elasticity of its outer ring and friction with the inner wall of the pipeline. There are mainly two categories: polyurethane leather bowl pig and polyurethane foam (cannon-ball type) pig, which can be equipped with an electronic positioning transmitter to realize radio pigging tracking for long transport pipeline. The working distance of cannonball type pig can reach 30KM ~ 100KM at one time, and that of cup type pig can reach more than 100KM at one time.