High performance fixed ball valve series, with high strength, good sealing, maintenance-free, long service life and so on. This series of ball valve is the use of international advanced ball valve design and manufacturing technology, in accordance with advanced material standards to select high-quality materials; At the same time summed up many years of ball valve design and manufacturing experience, the use of advanced manufacturing equipment and production processing technology, through first-class testing equipment and means, perfect quality assurance management system and excellence in production and manufacturing concept to ensure the high performance of ball valves. This series ball valve has a high rigidity, good strength, no defect forged shell; Reliable sealing performance, even in the maximum pressure difference (full pressure difference) after multiple switching action, still can ensure that the seal without leakage, to ensure that it can be safely used in the transport of oil, natural gas, gas and other special media on the pipeline.

Elastic deformation energy self-sealing (rubber single wire seal)

If the secondary main seal uses elastomer rubber, whether circular or triangular cross-section, its sealing principle has undergone fundamental changes, this principle we call as elastomer elastic deformation energy self-sealing principle (Self-energying), elastomer rubber as a sealing ring material, sealing mechanism has changed, The medium force acting on the valve seat is only to push the valve seat to the ball, this force does not need to be large, and the real sealing force is that the medium enters the side of the elastomer groove, presses the elastomer to undergo elastic deformation, like a spring is compressed, the elastomer through its own requirements to restore the initial shape of the force used on the surface of the ball, so the rubber elastomer is soon applied in the pipeline ball valve. Achieved good results. The polymer material PTFE is replaced in a non-corrosion-resistant medium.

Single piston DBB structure

Each seat is designed for a one-way motion effect when the valve is in operation: The pressure in the seat itself is relative to the pressure brought by the ball when it rotates. The purpose of our design is to overcome the spring and release the residual pressure rapidly generated in the seat when it is under pressure, that is, when the pressure overpressure in the middle chamber is 1.33 times greater than the pressure in the pipeline, the pressure can be automatically discharged.

Double piston DIB structure

At the same time, we use such a valve seat design, which can be applied to the valve seat of two-way valve. In this case, on the one hand, the rotation of the ball will bring a certain external pressure to the valve seat, while on the contrary, the internal pressure of the valve seat will act on the inside of the valve seat at the same time, so that the valve seat will be bidirectional sealed, but in this case, the valve seat itself will bear a large amount of and constantly rising pressure. In order to ensure the release of pressure acting on the sphere, an external full relief valve must be used.

Nickel plating

The surface of the valve seat product has a standard thickness of 30, 50, 70 microns of nickel. This process is used for the surface treatment of the seat, in order to expand the hardness standard of the surface only 500-600HV to 800-900HV. The main feature of the composition of the coating is a high content of phosphorus, which is operationally compliant with ASTM B656-733-602-571-578.