Q47 Type Fixed Fireproof Ball Valve

The Q47 type fixed fire-proof ball valve produced by Dazhong Valve Group is a new generation of high-performance ball valve suitable for long-distance pipelines and general industrial pipelines. Corrosive and non-corrosive media. When working, the force generated by the fluid pressure before the valve in the pipeline on the sphere is all transmitted to the upper and lower bearings, the sphere will not move, the valve seal is realized by the spring and the medium pressure pushing the valve seat, so the valve seat will not bear excessive pressure, especially suitable for In high pressure, large diameter occasions.

• The fire-proof ball valve adopts a fixed ball design, and the relative moving parts are made of self-lubricating materials with a very small friction coefficient, so the operating torque is small. In addition, the tight seal of the sealing grease makes the operation more flexible. The ISO5211 connection standard can make the installation of electric/pneumatic actuators more specialized.

• Fireproof ball valve adopts full or reduced diameter design with low flow resistance. Metal hard seal fireproof ball valve adopts two-way metal movable sealing structure, with automatic compensation and self-cleaning functions, and excellent sealing performance. Fireproof ball valve The fixed ball design and the addition of a preload spring make the ball valve have an automatic pressure relief function.

• 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. It has a fire-proof and anti-static structure. Conductive springs are set between the spheres to prevent static ignition from igniting flammable media. Ensure system safety.

• The double protection of the refractory structure. In the event of a fire and the sealing ring is burned out, each sealing part of the ball valve can form a metal-to-metal hard sealing structure.

• Automatic pressure relief structure, when the liquid medium remaining in the valve cavity is vaporized due to the temperature rise, and the pressure in the middle cavity increases abnormally, the medium cavity medium can rely on its own thrust to push the valve seat and automatically release pressure to ensure valve safety.

• Pneumatic, electric, hydraulic, and pneumatic adjustment type and electric adjustment type are available. For details, please refer to the Actuator and Control Valve section of this book.