The PIGGING VALVE PRODUCED BY YUEFENG IS a NEW TYPE OF VALVE WHICH IS mainly USED TO CLEAN THE pipeline in the long pipeline of water, oil and natural gas, and is used to transmit and receive the pig. With the corresponding pig, it can easily complete the cleaning, emptying and isolation of the pipeline, the sequential delivery of media, and the detection of the pipeline system, which can completely replace the traditional pigging transmitting and receiving device with the pig transceiver cylinder as the core.