Abstract: A plastic ball valve has a layer of metal film coated on the ball by electroplating. This prevents the ball from directly contacting the inner surface of a pipe housing socket. Microorganisms are prevented from growing at the junction of the ball and pipe housing. When the pipe housing is sleeved on another pipe by applying an adhesive, any adhesive that adheres on the ball is easily peeled off during valve operation. This ensures a smooth regulation of fluid flow through the pipe housing.

Abstract: A plastic ball valve has a layer of metal film coated on the ball by electroplating. This can prevent ball from contacting a pipe. Further, microorganisms can not grow at the junction of ball and pipe. Furthermore, in a case that the pipe is sleeved on another pipe by applying an adhesive. There is no need to worry that adhesive may adhere on ball and pipe because even adhesive adhered on ball can be easily peeled off during operation. This ensures a smooth regulation of the flow of fluid in the pipe.