There are many kinds of connection method between valve and pipe. Whether choose the suitable connectmethod, which is related to the cost performance of the valve, and will directly affect the probability that the pipeline and the pipeline valve will run, drop and leak.

Common pipe connections include: flange connection, butt welding connection, threaded connection, clamp connection, wafer connection, etc. 

1.Flange connection

Flange connection is the valve body with a flange at both ends, in accordance with the pipeline flange, and use bolts fix flange installed in the pipelineThe flange connection is the most widely used connection way. Flange can be divided into different kinds: RF, FF,M,FM etc. The common flange connection valve including APIcast steel gate valve, stainless steel ball valve.

2.Wafer Connection

Pipeline valves are installed between two flanges, and use bolts connect the valve and two pipes.The commo wafer connection valve including wafer check valve,wafer swing check valve, wafer double plate check valve.

3.welding connection

Butt welding connection: the two ends of the valve is processed into butt groove according to butt welding requirementSocket welding connection:the two ends of the valve is processed according to socket welding requirement.

4.threaded connection

Threaded connection is a simple kind connection, normally used in small size threaded valve. The valve isprocessed according to the thread standard, NPT and FNPT. In accordance with the threads on the pipe.