Forged steel ball valve，ball valve

Forging of forged steel ball valve is a common forming method in mechanical manufacturing. Through forging can eliminate the metal cast loose, welding holes, the mechanical properties of the forging is generally due to the casting of the same material. Forged steel ball valve can be divided into cold forging and hot forging according to the temperature of the blank during processing. Cold forging is generally processed at room temperature, and hot forging is processed at the recrystalization temperature higher than the blank metal. Sometimes it will be in a heated state, but the temperature does not exceed the recrystalization temperature of the forging is warm forging. However, this division is not completely uniform in production.

Forged steel ball valve material is mainly carbon steel, stainless steel or alloy steel of various components, the original state of the material is bar, ingot, metal powder and liquid metal, generally small and medium-sized forgings are used as blanks of round or square bar. The grain structure and mechanical properties of the bar are uniform and good, the shape and size are accurate, and the surface quality is good. As long as the heating temperature and deformation conditions are controlled reasonably, the forgings with excellent performance can be forged without large forging deformation. The ingot is a casting structure with large columnar crystals and loose centers, so the columnar crystals must be broken into fine grains through large plastic deformation. To obtain excellent metal structure and mechanical properties.

Characteristics

1. According to the caliber and pressure, the structure is divided into two types: floating ball and fixed ball. The ≥NPS8 fixed ball can be made into a support plate structure.

2. When the cavity of the ball valve overpressure, according to the different valve seat structure, there are internal pressure relief and external pressure relief function.

3. With fire prevention function, in line with API 607 provisions.

4. Anti-static function.

5. The bottom of the valve body is provided with a drain valve, which can manually discharge the sediment in the cavity.

6. At the seat and packing, the grease injection valve is specially arranged to play the role of emergency sealing.

7. The rubber sealing ring and graphite sealing ring are used between the stem packing and the valve body, which not only improves the reliability of the seal, but also meets the fire prevention requirements.

Forged steel ball valve is widely used in chemical, petroleum, natural gas, metallurgy and other industries. The valve is suitable for the long distance natural gas pipeline containing hydrogen sulfide medium, many impurities and serious corrosion, as well as chemical industry, petroleum refining, natural gas extraction and transportation system.

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