PN, Class, K, bar are all units of pressure rating to express the nominal pressure rating for pipelines, valves, flanges, pipe fittings or fittings. The difference is that the pressure they represent corresponds to different reference temperatures. PN refers to the corresponding pressure at 120℃, while CLass refers to the corresponding pressure at 425.5℃. Therefore, […]
Large diameter globe valves are mostly used for media with big pressure drop such as steam, water, etc. Engineers may face the situation, that the valve is often difficult to close tightly and prone to leakage, which is generally due to the valve body design and insufficient horizontal output torque (adults with different physical conditions […]
The globe valve is designed with a stem that moves up and down to allow the medium flow one-way movement and make the sealing surface of the valve disc and seat tightly fit to prevent medium flow. It’s characterized saving elbow and operate conveniently and can be installed in the bent part of the pipeline […]
In the United States institutions system, there are several standards can be used to specify the industrial valve like ASME standard ( American Society of Mechanical Engineers), API standard (American Petroleum Institute), ANSI standard (American National Standards Institute), MSS SP standard (Manufacturers Standardization Society of the Valve and Fittings Industry). Each of them has specific […]
Valve actuators refer to devices that provide linear or rotary movement of the valve, which using liquid, gas, electricity or other energy sources and converted it by motors, cylinders or other devices. Pneumatic actuator uses air pressure to realize the valve drive open and close or regulation with one piece implementation and regulation mechanism, can […]
PEEK (Polyetheretherketone) was developed by ICI (British chemical industry corporation) in 1978. Subsequently, it was also developed by DuPont, BASF, Mitsui optoelectronic co., LTD., VICTREX and Eltep (United States). As a kind of high-performance polymer material, PEEK is characterized by low creep variable, high elastic modulus, excellent wear resistance and corrosion resistance, chemical resistance, non-toxic, […]
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