Three piece ball valve socket welding 1000PSI ISO5211 platform. The three piece, full port design. Three piece type structure is conducive to the line valve repair. The stem to blow out proof valve stem, valve stem seals used butterfly spring sealing stru
Three piece ball valve welding 1000PSI ISO5211 platform. The three piece, full port design. Three piece type structure is conducive to the line valve repair. The stem to blow out proof valve stem, valve stem seals used butterfly spring sealing structure,
Three piece ball valve welding 1000PSI. The three piece, full port design. Three piece type structure is conducive to the line valve repair. The stem for blowout proof stem, stem seal with sealing, effectively avoids the wear caused by the leakage of fill
Three piece ball valve internal thread 1000PSI ISO5211 platform. The three piece, full port design. Three piece type structure is conducive to the line valve repair. The stem to blow out proof valve stem, valve stem seals used butterfly spring sealing str