Dimensions: Full Diameter & Standard Diameter DN50 (2”) ~ DN 1,400 (56”)
Pressure Rating: ANSI Class 150 ~2,500, PN 16 ~ 420
Working temperature: -29°C(-20°F) ~ +200°C(392°F)
Adaptable medium: petroleum/gasoline, liquefied natural gas/liquefied petroleum gas, petrochemical, steel plant, heating pipeline, etc.
Operation method: handle, gear (vertical/horizontal), electric
Butt welding & flange end for solid structure
Mirror polishes the entire stainless steel sphere
Preloaded seat cushion springs ensure low temperature leak tightness and reduce torque on valve operation
According to international standards against burst valve stem
Stem dry bearings and metal with PTEF coating for automatic lubrication without additional lubricant
Floating or fixed ball valve
Select features: (as required)
Self-rescue valve seat
Vertical device and extended stem
Special ports and paths
Stem can handle grease urgently
Seat lubricant and emergency sealant equipment
Metal to metal seat seal
Double cut and discharge
Double piston action seat
Safety fire protection design with graphite gasket
Seat seal plastic polymer
In-body cavity safety valve
Ball and stem electroless nickel plating
Body: Carbon Steel ST37, A106-B, STPG 370, A105, WCB, LCB, CF8, CF8M, CF3, CF3M, A105, LF2, F304, F316, F304L, F316L， WC6， WC9， C5， C12， LCA， LCB， LCC， LC1, LF2/LF1, EN12516 1.0619, 1.4408, 1.44011. 4301, 1.4304, 1.4404, 1.4021, 1.4571, 1.4541, 1.4462 etc.
Sphere: stainless steel 304 or 316 grade
Seat: Metal seats with polymer seals, PTFE, RTFE, Viton, Nylon, Peek, etc.
City Gas:gas outlet pipe,supply pipe for main line and all brach lines etc.
District heat supply:Outlet pipe,main line and brach line for large heat supply equipment.
Heat exchanger:on-off of pipe and all loops.
Steel plant:various fluid pipes,discharging pipe for exaust gas,supply pipe for gas,thermal power and fuel.
Various industrial equipment:various heat treatment pipes,pipe for all kinds of industrial gas and thermal power.
Outer leakage won't occur for welded ball valve.
Valve seat consists of teflon sealing ring strengthened by carbon fiber and belleville spring,so it can adjust well to change on pressure and temperature without any leakage risk within marked pressure and temperature range.
The whole process of sphere is tracked and detected with advanced computer and detector,so the process precision is very high,operation is very simple and easy,no bad interference.
Body material is same as material of pipe,when vehicles pass through the groud or even earthquake happens,the stress is evenly distributed without any deformation risk.
Sealing ring is made of PTFE containling 20% carbon,Ensure no leakage will happen.
Buried ground fully welded ball valve can be installed in small and shallow well being set on ground rather than large valve well,so the construction cost and project time can be saved a lot.
The length of valve body and height of stem can be designed in accordance with the requirement of project.
The service life can be more than 15 years when used at normal operational and using conditions.