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Home / News / Valve Knowledge / Why forged steel ball valves must be used for natural gas pipelines

Why forged steel ball valves must be used for natural gas pipelines

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Update:2016-04-20 0:00:00 Wednesday
Summary:Why do we need to use forged steel ball valves for natural gas pipelines? Forged steel ball valves for natural gas pipelines are forged steel structures, which are especially suitable for working conditions such as coal gas, purified natural gas, sou......
Why do we need to use forged steel ball valves for natural gas pipelines? Forged steel ball valves for natural gas pipelines are forged steel structures, which are especially suitable for working conditions such as coal gas, purified natural gas, sour natural gas, water, coal slurry and oil, and are suitable for Class150~Class1500, The working temperature is -28~300℃ in the pipeline of various working conditions such as petroleum, chemical industry, thermal power station, and it plays the role of cutting off or connecting the medium. Because forged steel ball valve trim materials are also carefully selected, the wall thickness of the valve body and the connection strength of the bolts of the valve body are in accordance with the requirements of the American standard ASME B16.34. After rigorous calculations, the corresponding valve body pressure level and joints are ensured. The reliable strength. The sphere adopts a fixed structure and a floating valve seat, which can achieve a small torque under operating pressure. It uses a metal sleeve with self-lubricating PTFE, which is matched with a high-strength and high-finish valve stem to minimize the friction coefficient. The pipeline forged steel ball valve uses polymer materials as the seat seal, and the sealing seat is spring loaded. It has excellent sealing performance in a wide range of temperature and pressure changes, ensuring a seal without bubble leakage under the action of the closing pressure difference, and The minimum operating torque can be maintained under the maximum pressure difference. The specifications and pressure ratings of the forged steel ball valve comply with the requirements of the American Petroleum Institute API 16D/ISO 14314 standard, the Chinese GB/T 19672 standard and the American ASME standard. According to customer requirements, the valve can be made of materials that meet the American Corrosion Engineering Association standards NACE MR 0175 or NACE MR 0103. The design and manufacturing quality system of the ball valve is based on the ISO 9001 quality system standard and the API Q1 quality program specification, and is recognized by the DNV Classification Society and the American API Petroleum Institute. It conforms to the ISO 9001 quality system standard and complies with API Q1 and API. 6D specification, and authorized to use the API monogram, the certificate number is API 6D-0652. The pipeline forged steel ball valve has a variety of materials to choose from, with complete specifications and pressure grades, all venting and shrinking, oil, natural gas, chemical raw materials, etc. Ideal valve for a wide range of applications in conveying pipelines.
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