(1) Effortless operation: The ball is supported by upper and lower bearings to reduce friction and eliminate excessive torque caused by the huge sealing load between the ball and the sealing seat caused by the inlet pressure.
(2) Reliable sealing performance: The PTFE single-element sealing ring is embedded in the stainless steel valve seat. A spring is provided at the tail end of the metal valve seat to ensure sufficient pre-tightening force of the sealing ring. When the sealing surface of the valve is worn 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 due to sudden heat or fire, resulting in large leakage and fueling the fire, a fireproof sealing ring is provided between the ball and the valve seat. When the sealing ring burns, the spring force quickly pushes the valve seat sealing ring onto the ball to form a metal-to-metal seal, which has 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 cavity rises abnormally and exceeds the preload of the spring, the valve seat retreats and separates from the ball to achieve the effect of automatic pressure relief. After the pressure is relieved, the valve seat automatically resets.
(5) Drainage pipeline: Drain holes are set on the upper and lower parts of the valve body to check whether the valve seat is leaking. During operation, when the valve is fully open or fully closed, the pressure in the middle cavity can be discharged and the packing can be directly replaced; the retained materials in the middle cavity can be discharged to reduce the contamination of the valve by the medium. Auxiliary sealing setting system (please specify when ordering if the customer needs it)
(6) This valve is designed with an auxiliary valve seat emergency sealing system. Once the seal is damaged or an emergency situation occurs and it cannot be sealed, the corresponding sealant can be injected into the sealing surface through the auxiliary sealing system to repair the sealing surface and 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, the corresponding cleaning agent or lubricant can also be injected into this device to clean the sealing surface.
(7) It is widely used in the cutting or circulation of media in pipelines for food, medicine, petroleum, chemical industry, natural gas, steel, environmental protection, papermaking, etc. The device can also be injected with corresponding cleaning agents or lubricants to clean the sealing surface.