Stainless steel flange ball valve,flange ball valve

Product characteristics

a: Easy operation: The ball is supported by the upper and lower bearings, reducing friction and eliminating excessive torque caused by the huge sealing load formed by the import pressure pushing the ball and the seal seat.

b: Reliable sealing performance: PTFE monosexual sealing ring is embedded in the stainless steel valve seat, the metal valve seat is equipped with a spring at the end to ensure sufficient preload of the sealing ring, and the valve continues to ensure good sealing performance under the action of the spring when the sealing surface is worn during use. (3) Fireproof structure: In order to prevent the occurrence of sudden heat or fire, the polytetrafluoroethylene sealing ring is burned, a large leak occurs, and fuel the fire, the fireproof sealing ring is set between the ball and the seat, when the sealing ring is burned, under the action of the spring force, the seat sealing ring is rapidly pushed to the ball, forming a metal and metal seal, and plays a certain degree of sealing effect. The fire resistance test meets the requirements of APl6FA and APl607 standards.

c: Automatic pressure relief function: When the stagnant medium pressure in the valve cavity rises abnormally above the preload force of the spring, the seat will retreat from the ball to achieve the effect of automatic pressure relief, and the seat will automatically reset after pressure relief.

d: discharge pipeline: discharge holes are set up above and below the valve body to check whether the valve seat leaks. In the work, when the valve is fully open or fully closed, remove the pressure in the middle cavity and directly replace the packing; Can discharge the cavity retention, reduce the medium to the valve pollution. Auxiliary seal setting system (customer needs please specify when ordering).

e: The valve is designed with an auxiliary valve seat emergency sealing system. Once the seal is damaged or cannot be sealed due to emergency conditions, the sealing surface can be repaired by injecting the corresponding sealant into the sealing surface through the auxiliary sealing system to achieve emergency sealing. When the conveying medium is unclean or contains a small amount of particles, in order to protect the sealing surface and ensure a reliable seal, the device can also be injected with the corresponding cleaning agent or lubricant to clean the sealing surface.

The valve is designed with an auxiliary valve seat emergency sealing system, once the seal is damaged or there is an emergency situation and cannot be sealed, the auxiliary sealing system can inject the corresponding sealant into the sealing surface to repair the sealing surface and achieve emergency sealing. When the conveying medium is unclean or contains a small amount of particles, in order to protect the sealing surface and ensure a reliable seal, the device can also be injected with the corresponding cleaning agent or lubricant to clean the sealing surface.

Packing of Standard Packing: 

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 470 gallon liquid totes Special package is available on request. E FORUs’  is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.