Products Details

All-welded pipeline ball valve is a kind of valve widely used in oil, gas, chemical and other industries, and plays an important role in the industrial field with its unique structure and performance advantages. The following are some of the main features and application areas of all-welded pipeline ball valves:

Structural features: The whole welded ball valve adopts the whole welded structure, no external leakage point, improve the sealing and reliability of the valve. The body is usually made of carbon steel, stainless steel and other materials, and the ball is made of ASTMA350LF2, ASTMA105 and other materials, and may be subjected to hard chromium coating or ENP treatment to enhance corrosion resistance.

Design standards: The all-welded ball valve is designed to meet a variety of domestic and foreign standards, such as API 6D, ASME B16.34, GB/T 12237, etc., to ensure its versatility and compliance in different application scenarios.

Sealing performance: The spring-loaded soft sealing seat can adapt to changes in pressure and temperature to ensure that the valve does not leak during service. Sealing materials may include FPM, PTFE, EPDM, NBR, etc.

Mode of operation: The all-welded ball valve can be operated by manual, worm gear drive, pneumatic, electric or hydraulic and other ways to adapt to different working environments and operational needs.

Temperature and pressure range: Fully welded ball valves are suitable for a wide temperature range, from -50°C to +280°C, as well as different pressure classes such as PN10-420 or ANSI class 150-2500.

Special Features: Some all-welded ball valves also have special options such as emergency seal injection, stem extension, underground installation, and bypass functions to meet the needs of specific applications.

Application: All-welded ball valve is suitable for oil, gas and product pipelines, compressor stations, gas storage, oil, gas and petrochemical industrial equipment, liquefied gas, offshore platforms, shipbuilding, power plants, district heating/steam, scraper conveyor launch and receiving stations, special applications/customization.

Safety: The design of the all-welded ball valve ensures that it meets the fire safety requirements of international standards such as API 6FA, API 607 and BS 6755 P2.

Ball support: For large calibers and high pressure operations, the trunnion-mounted ball design reduces valve torque by providing additional mechanical support at the top and bottom of the ball, as the ball is supported at two points.

Stem seal: All-welded ball valves typically feature three separate seal systems that ensure stem seal to atmosphere and blowout resistance, and these seals can be easily replaced in either a full open or full closed position.

All-welded pipeline ball valve has been widely used in modern industry because of its high reliability, good sealing performance and strong adaptability.