(1) Operating effort: the upper and lower ball bearings to reduce friction, eliminating the inlet pressure to promote the great seal and seal seat load sphere formation caused by excessive torque.

(2) reliable sealing performance: PTFE single material embedded in a stainless steel valve seat seals, metal seat ring tail has a spring to ensure adequate preload, the valve sealing surface during use, wear and tear, in spring under the valve continues to ensure good sealing performance.

(3) structural fire protection: To prevent the sudden emergence of heat or fire, make Teflon seals burned, there is a greater leakage, while fueling the fire, setting fire sealing ring between the ball and the seat, when burned in the ring in the spring force, the valve seal ring on the ball quickly to form a metal to metal seal, play a certain degree of sealing effect. Fire Test comply APl6FA and APl607 standards.

(4) Automatic pressure relief function: When the medium pressure valve in the cavity stagnant abnormal increase over spring preload, the seat back from the ball, to achieve the effect of automatic pressure relief, the pressure relief valve automatically reset.

(5) the discharge line: When the upper and lower body are set excretion larvae L, you can check valve leaks occur at work, the valve is fully open or fully closed, relieved the pressure in the chamber can be directly replace the packing; may be discharged the cavity left, reducing the pollution of the media valve. Secondary seal set system (customer needs please specify when ordering)

(6) The valve is designed to seal the auxiliary seat emergency system, if the seal is damaged or emergency situation can not be sealed ten blue, the respective sealing agent injected through the secondary sealing surface of the seal system to a sealing surface can be repaired, to emergency seal. When the medium contains a small amount of contaminated particles or transport, to protect the sealing surface to ensure that achieve a reliable sealing of the apparatus can also be injected to the respective cleaning agent or a lubricant on the sealing surface cleaning.

(7) are widely applied to cut or flow of food, medicine, petroleum, chemical, natural gas, steel, environmental protection, paper and other media delivery pipeline. This device can also be injected to the appropriate cleaning agent or lubricant on the sealing surface cleaning.