1.Full Bore Design
According to the customer's demand, the full bore or the reduced bore canbe provided. The full-bore valve has the diameter of channel completely equal to the inner diameter of pipe tofacilitate to clean the pipe.
2. Fire-proof Structure
When the fire happens or the temperature unusually rises to make PTFE soften to damage, the fire proof seal surface of seat supported circle can contact with ball to have sealfunction. This conforms to the requirements of API607and API 6FA.
3. Block & Bleed Function
Fixed ball valve adopts spring to pre-tighten, and seat seal is double pistons.lt adopts piston principle to seal. Upstrean and downstream seats make fluid stop. and the emptying valve installed on the middle cavity is used to empty and the blow down valve installed at the bottom of valve to clear off dirt tofacilitate to clean the pipe.
Urgent Help of SealDue to the dirt or fire makeunusual failure of seat seal, sealant-injection vave provide the quick connection with sealant-injection gun, and it is convenient to inject sealgrease into the seal part of seat to reduce leakage.
When the medium in the middle cavity unusually raises pressure for the risingof temperature, outlet of seat has automatic relief function. At the same
time, according to tne ldn the safety valve can be installed on the
body to ensure the automatic relief function of body. so that the pipecan be safe.
4. Anti-static Design
Chrome and nickel stainlesssteel spring and small ballare adopted to make electroconductive among ball.Stemand body to comp latelyrelease static.
5. Operational Reliability
For large ball valve, the TFE is adopted for seat and stem bearing, the relative movement at bearing portion requires less operationaltorque force because of less friction of the TFE, in addition, the longtime lubrication of the sealants makes the operation more effective.
