Natural gas pipeline must choose pneumatic valve forging steel ball is this why

pipe forging steel ball can choose pneumatic valve has a variety of materials, complete specification and stress level, the menstruation and shrink by both ability and political integrity, oil, natural gas, chemical raw materials widely used in transfer line of ideal pneumatic valves.
why gas pipeline must choose pneumatic valve forging steel ball? Pneumatic valve forging steel ball of gas pipelines for forging steel structure, especially suitable for acid gas, water, gas, natural gas purification, coal slurry and the working condition of oil such as media, apply to the Class to Class, working temperature - ~ ℃ under various working conditions such as petroleum, chemical industry, power plant piping, cut off or on the role of the media.
for forging steel ball in the pneumatic valve is also carefully select materials, pneumatic valve body wall thickness and the body of the bolt connection strength according to the American standard ASME B. Requirement, careful calculation, to ensure that the corresponding pneumatic valve pressure rating and constraints for reliable strength.
sphere with fixed structure, floating pneumatic valve seat, under the operating pressure can reach smaller torque, has adopted the embellish of PTFE metal collar, with high strength, high degree of finish of pneumatic valve stem, the coefficient of friction to a minimum.
line forging steel ball pneumatic valve used polymer materials as a pneumatic valve seat seal, seal seat with a spring loaded, in a wide range of temperature and pressure changes with excellent sealing performance, to ensure that the closed under the action of pressure difference reached no bubble leak sealing, and the maximum differential pressure next can keep the minimum operating torque.
forging steel ball of the specifications of the pneumatic valve and pressure rating in accordance with the American petroleum institute API D/ISO standards, the Chinese GB/T standard and the requirements of the ASME standard. According to the customer request, pneumatic valve can be used in the American corrosion engineering standard NACE MR or NACE MR material.
pneumatic ball valve design and manufacturing quality system based on ISO quality system standard and the quality of the API Q outline specification for the model, and approved by DNV classification society and the American institute of API oil respectively, in line with the ISO quality system standard, in line with the API D Q and API specifications, and authorized the use of API monogram, D - certificate number for API 。