Fixed ball valve Q (3) 47F (H) principle:
    It is suitable for long-distance pipelines and general industrial pipelines. Its strength, safety and harsh environment are specially designed for various corrosive and non-corrosive media. Compared with the floating ball valve, when the fixed ball valve is in operation, the force generated by the fluid pressure on the ball before the valve is transmitted to the bearing, and the ball is not moved to the valve seat, so the valve seat does not withstand excessive pressure, so the fixed type The flange ball valve has small torque, small deformation of the valve seat, stable sealing performance and long service life, and is suitable for high pressure and large diameter applications. Advanced spring pre-seat assembly with self-tightening for upstream sealing. Each valve has two seats that seal in each direction, so the installation has no flow restriction and is bidirectional.
    The manual fixed ball valve has two-stage and three-stage valve body structures. The middle flange is bolted. The seal is made of reinforced PTFE embedded in the stainless steel ring. There is no spring at the rear of the steel ring to ensure that the valve seat is close to the ball. Keep it sealed. There is no PTFE bearing on the upper and lower valve stems, which reduces friction and saves labor. There is no adjustment piece at the bottom of the small shaft to ensure the position of the ball and the sealing ring. Full bore: The valve flow orifice is the same as the inner diameter of the line for the pipeline to be cleaned.


Fixed ball valve Q (3) 47F (H) performance characteristics:
     The 1O type fixed flange ball valve adopts the fixed ball design, and the relative moving parts adopt the self-lubricating material with very small friction coefficient, so the operating torque is small, and the long-term sealing of the sealing grease makes the operation more flexible;
     2The valve adopts high platform structure and ISO5211 connection standard, which can make the installation of electric/pneumatic actuator more professional;
     3O type fixed ball valve adopts full diameter or reduced diameter design, and the flow resistance is small;
     4 metal hard seal O-type fixed flange ball valve adopts two-way metal movable sealing structure, with automatic compensation and self-cleaning function, excellent sealing performance;
     The 5O fixed ball valve adopts a fixed ball design and adds a preload spring to make the ball valve have an automatic pressure relief function;
     6 Each ball valve has two movable sealing seats, which can be sealed in both directions, so the flow direction of the medium does not need to be considered during installation;
     7 With fireproof and anti-static structure, a conductive spring is arranged between the valve stem and the valve body and the valve stem and the ball to avoid electrostatic ignition and ignite the flammable medium. Ensure system security;
     8 Refractory structure double protection, when the sealing ring is burned in case of fire, the sealing parts of the ball valve can form a metal-to-metal hard sealing structure;
     9 automatic pressure relief structure, when the liquid medium retained in the cavity of the valve is vaporized due to the temperature rise, and the pressure in the middle cavity is abnormally increased, the medium cavity medium can automatically push pressure on the valve seat by its own thrust, thereby ensuring The valve is safe.