DIDLINK Full welded ball valves are intended to be fitted as stop/shutoff valves in water and gas-supply systems, in the heat-power engineering, housing and communal services as well as in the process lines at chemical and oil-refining plants, at pulp-and paper milks production facilities. DIDLINK Full Weld Ball Valve Design Features » Seamless Carbon Steel or Stainless Steel Body: All welded ball valve body is compact and streamline for maximum strength and minimum weight. » Stainless Steel Ball: The stainless steel ball is produced to extremely tight tolerances, and ground to within microns of perfect roundness to assure smooth operations and a tight seal. » Optional Locking Device With Position Indicator: Instantly readable locking device that shows the valve operating position. » Stem Bearings: These bearings are produced from an electrically conductive material that provides a safety grounded stem to eliminate static build-up and potential arcing. » SEAT SEALS: The special 25% carbonized PTFE (Teflon) (G-453) seals tightly, yet allows easy, low-torque, quarter-turn operation. » STAINLESS LABELS: Every label is permanently stamped, color coded with traceable serial numbers for each valve » SEAT QUALITY FEATURES: Do not absorb water, and does not expand Chemical resistant, High friction characteristics Good temperature stability, Tested and approved up to 250℃ DIDLINK FULL WELDED BALL VALVES GENERAL FEATURES » Uni-body Top Entry » Double Block and Bleed » Standards to EN12516, DIN3357-1 » Fire Safe, Anti-static, Stem Blow-out » Optional Locking Device and Position Indicator » Size Ranges: 1/2" through 16" (DN15 through DN400) » Pressure Ratings: ASME Class 150 through Class 900 (PN10 through PN150) » Standard Materials Ranges: Cast Carbon Steel, Stainless Steel, Alloy Steel etc DIDLINK offers Full Welded ball valves covering, but not limited to ▲ Welded Ends Full Weld Ball Valve ▲ Flanged Ends Full Weld Ball Valve ▲ Full Welded Ball Valve with stem extension for buried service   We're commitment to offer you the aggressive cost ,superb products and solutions top quality, too as fast delivery for Factory For China Russia GOST 12815-80 Carbon Steel St37.0 Butt Weld Flange End Rptfe Seat Full Welded Body Floating Ball Valve Pn16 Pn25 Pn40 for Natural Gas, Our team members are aim to provides products with high performance cost ratio to our customers, and the goal for all of us is to satisfy our consumers from all over the world. Factory For China Welded Gas Ball Valve,  Natural Gas Ball Valve, Our company insists on the principle of "Quality First, Sustainable Development", and takes "Honest Business, Mutual Benefits" as our developable goal. All members sincerely thank all old and new customers' support. We will keep working hard and offering you the highest-quality goods and service.