نمایش نتیجه 1 تا 6 از 6 نتیجه یافت شده برای ball valve:
n: a flow-control device employing a ball with a rotating mechanism to open or close the tubing.
any of several valves that rotate a ball with a flow passage to allow or deny flow.
شیر توپی
ball valve.
n: A part of dart-type blowout preventer, consisted by projecting board and ball valve.
n: A kind of bailer in cable drilling. The ball valve connected with projecting board is installed in the bailer. Open the ball valve and bail when projecting board touchs the bottom or object on the surface.
n: a joint with ball valve and connected between the pipe and the kelly bar
n: the casing shoe with center-bore dissepiment and ball valve,the effect and structure is similar with the flexiflow fill-up collar
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