|Short Description:||Since the seat of the API 6D fully welded ball valve is made up of a carbon teflon seal ring and a disc spring, it is adaptable to changes in pressure and temperature and will not produce any leakage in the marked pressure and temperature range.
Fully welded ball valves are widely used in domestic steel mills, petroleum, chemical, gas, boiler, paper, textile, pharmaceutical, food, ship, water supply and drainage, energy, polysilicon, electricity and so on.
|Size Range:||2”~60” (50mm~1500mm)|
|Connection Ends:||Flange, Butt Weld|
|Operator:||Lever, Gear, Electric, Pneumatic etc.|
|Material:||Body Materials: A105 (N), LF2, F304, F316, F51, F55 etc.Ball Materials: A105+ENP, F304, F304L, F316, F316L, F51, Inconel, etc.Stem Material: 17-4PH, XM-19, F304, F316, F51 etc.Seat Material: PTFE, PPL, RPTFE, DEVLON, NYLON, PEEK, SS+Ni/ STL.|
|Standard:||Design: API 6D, ASME B16.34, API 608Pressure and Temp. Range: ASME B16.34Inspection and Test: API598Flange Ends: ASME B16.5Butt Weld Ends: ASME B16.25,Fire Safe: API 607NACE MR-0175|
|Design Feature:||Full Bore or Reduce BoreDouble Exhaust StructureDouble Block & Bleed DesignCAPI/ISO 5211 Mounting PadBlow-out Proof StemIntegral Body StructureAnti-fire Safe Design
|Working Type:||Ball valves utilise a hollow ball that allows a flow through it when in the open position and isolates when closed. The ball is driven via a spindle that fits into a slot milled into the hollow ball, which in turn is operated by a lever to open and close the ball. The ball valve spindle is encased in the valve body neck and is sealed by a range of neck seals, to prevent leakage, in addition, the ball is sandwiched between two body/ball seats that ensure positive sealing.|