Stainless steel fixed ball valve (pneumatic), fixed ball valve

Product structure features

Series of fixed ball valve is mainly used in natural gas, oil, chemical, metallurgy, urban construction, environmental protection, pharmaceutical, food and other industries, including anti-sulfur series products are suitable for the medium containing hydrogen sulfide, impurities, serious corrosion of natural gas long-distance pipeline.

Its main structural features are

1. Shell structure

Fixed ball valve body according to the needs of the user and the actual working conditions of the different can be designed for casting structure, forged structure and welding structure of three forms, including the full welding structure of the ball valve is mainly suitable for buried use.

2. Seat sealing structure

Fixed ball valve according to the size of the pressure, the nature of the medium and the sealing requirements of the different and select the ball seal structure, the ball seal structure or the front ball double seal structure.

3. Automatic pressure relief structure

When the pressure in the middle chamber is abnormally elevated, the ball valve with single seal structure has automatic pressure relief function, and the ball valve with double seal structure is relieved by the additional pressure relief device on the valve body.

4. Sealed emergency care

When the seat and stem seals are damaged and cause leakage, the sealing grease injected through the grease injection valve can act as an instantaneous sealing.

5. Fireproof structure

According to the working conditions and the needs of the user, the ball valve can be designed as a fireproof structure. The fire resistant design of the ball valve is implemented in the provisions of API 607, API 6FA and JB/T 6899 and other standards. Once the fire occurs and the soft sealing ring is burned, the fire resistant structure of the ball valve can prevent the large amount of leakage of the medium and prevent the further expansion of the fire.

6. Anti-static structure

When operating the valve, due to the friction between the sphere and the valve seat, electrostatic charges will be generated and accumulated on the sphere. In order to prevent the generation of electrostatic sparks, an anti-static device is set in the valve soil to export the charge accumulated on the sphere.

7. Obstruction and excretion

When THE VALVE IS CLOSED, the upper and lower side seats block the fluid, and the stagnation in the valve body cavity can be discharged through the discharge device.

8. Lock the device

In the manual ball valve fully open, fully closed two points in the design of the structure can be locked, so that can prevent the improper operation and unpredictable line vibration caused by the switch phenomenon, especially in the flammable medium of oil and chemical production lines, and the valve in the outdoor piping, this design reflects the advantages and practical effect is particularly good.

9. Full diameter structure and reduced diameter structure

In order to meet the different needs of users, the company's ball valve products have full diameter and reduced diameter two series. The channel inner diameter of the full diameter ball valve is consistent with the inner diameter of the pipeline, which is easy to manage and clean. The weight of the reduced-diameter series ball valve is relatively light, but the fluid resistance is only about 1/7 of the same caliber globe valve, so the application prospect of the reduced-diameter series ball valve is broad.

Fixed ball valve is mainly used in natural gas, oil, chemical industry, metallurgy, urban construction, environmental protection, pharmaceutical, food and other industries, including anti sulfur series products are suitable for hydrogen sulfide medium, impurities, serious corrosion of natural gas long-distance pipeline.

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