High pressure forged steel ball valve

1、 Product Overview:

Q347FHigh pressure forged steel ball valveIt is a rotary valve with a 90 ° angle, excellent sealing performance, high flow coefficient and low flow resistance coefficient (full diameter ball valve), simple structure, long service life, and easy maintenance. Widely used in system control in the chemical, petroleum, textile, power, food and pharmaceutical, refrigeration, and paper industries. Specially used for long-distance transportation pipelines, its strength, safety, and resistance to harsh environments are all considered in the design. It is suitable for corrosive fluids and non corrosive valve bodies (the valve body and internal materials can be replaced according to the corresponding usage medium). During operation, the force generated by the pressure of the medium on the ball body is transmitted to the bearing, and the ball body will not move towards the valve seat, so the valve seat will not bear excessive pressure. Therefore, it also has small opening and closing torque, small valve seat deformation, stable performance, and long service life. It is suitable for high-pressure and large-diameter applications. The spring structure of its valve seat component has self tightness, achieving upstream sealing. Therefore, bidirectional sealing can be achieved.

2、 Technical specifications:

3、 Main structural diagram of fixed ball valve

High pressure forged steel ball valveProduct Features:

(1) Effortless operation: The ball is supported by upper and lower bearings, reducing friction and eliminating excessive torque caused by the huge sealing load formed by the inlet pressure pushing the ball and the sealing seat. (2) Reliable sealing performance: The PTFE single sex material sealing ring is embedded in the stainless steel valve seat, and the metal valve seat end is equipped with a spring to ensure sufficient pre tightening force of the sealing ring. When the sealing surface of the valve wears out during use, the valve continues to ensure good sealing performance under the action of the spring. (3) Fireproof structure: In order to prevent the PTFE sealing ring from burning out due to sudden heat or fire, causing significant leakage and fueling the fire, a fireproof sealing ring is installed between the sphere and the valve seat. When the sealing ring burns out, the valve seat sealing ring is quickly pushed onto the sphere by the spring force, forming a metal to metal seal and achieving a certain degree of sealing effect. The fire resistance test meets the requirements of APl6FA and APl607 standards. (4) Automatic pressure relief function: When the pressure of the stagnant medium in the valve chamber abnormally increases beyond the preload force of the spring, the valve seat will retract and detach from the ball, achieving the effect of automatic pressure relief. After pressure relief, the valve seat will automatically reset. (5) Drain pipeline: Drain plugs L are installed on both the upper and lower parts of the valve body to check if there is any leakage in the valve seat. During operation, when the valve is fully open or fully closed, the pressure in the middle chamber can be relieved and the packing can be directly replaced; It can discharge the retained substances in the middle chamber and reduce the pollution of the medium to the valve. Auxiliary sealing setting system (please specify when ordering) (6) This valve is designed with an auxiliary seat emergency sealing system. Once the seal is damaged or an emergency situation occurs and cannot be sealed, the sealing surface can be repaired by injecting the corresponding sealant through the auxiliary sealing system to achieve emergency sealing. When the conveyed medium is unclean or contains a small amount of particles, in order to protect the sealing surface and ensure reliable sealing, corresponding cleaning agents or lubricants can be injected into this device to clean the sealing surface. (7) Widely applicable for cutting off or circulating media in transportation pipelines such as food, medicine, petroleum, chemical, natural gas, steel, environmental protection, papermaking, etc. Corresponding cleaning agents or lubricants can also be injected into this device to clean the sealing surface.

4、 Main components and materials:

Main performance specifications:

Main connection dimensions and weight (national standard)