Add: Mechanical&Electrical Industry Zone,Yuhuan,Zhejiang,China
Gray cast iron gray cast iron valve for its low price, wide application and application in various fields of industry. They are usually used in the case of water, Electronic Hydraulic Valve steam, oil and gas as a medium and are widely used in chemical, printing and dyeing, oiling, textile and many other industrial products with little or no effect on iron pollution.
Black heart malleable cast iron for working temperature between -15 ~ 300 ℃, nominal pressure PN ≤ 2.5MPa in the low pressure hydraulic valve body. Applicable medium for water, sea water, gas, ammonia and so on.
Ductile iron Ductile iron is a kind of cast iron, this cast iron, lumps or spherical graphite to replace the gray cast iron in the flake graphite.Electronic Hydraulic Valve This change in the internal structure of the metal makes it more mechanical than ordinary gray cast iron, and does not damage other properties. Therefore, the use of ductile iron manufacturing valve body than those made with gray cast iron hydraulic valve body pressure is higher. Applicable to the working temperature between -30 ~ 350 ℃, the nominal pressure PN ≤ 4.0MPa in the low-pressure hydraulic valve body.
Carbon steel (WCA, WCB, WCC) was originally developed for the production of cast steel to meet the production needs beyond the capacity of cast iron valves and bronze valves. However, due to the overall performance of carbon steel valve, and by the thermal expansion, impact load and pipeline deformation stress generated by the strong resistance, so that its use of the scope of expansion, usually including the cast iron valve and bronze hydraulic valve body Working conditions.
Applicable to the working temperature between -29 ~ 425 ℃ in the high pressure hydraulic valve body. Which 16Mn, 30Mn for the temperature between -40 ~ 400 ℃, commonly used to replace ASTM A105. Applicable medium for saturated steam and superheated steam. High temperature and low temperature oil, Electronic Hydraulic Valve liquefied gas, compressed air, water, natural gas and so on.
Low temperature carbon steel (LCB) Low temperature carbon steel and low nickel alloy steel can be used for temperatures below zero, but can not be extended to use in cryogenic areas. Hydraulic valves made of these materials are suitable for use in the following media, such as seawater,Electronic Hydraulic Valve carbon dioxide, acetylene, propylene and ethylene.
Applicable to the working temperature of -46 ~ 345 ℃ between the low-temperature hydraulic valve body.
Plastic, ceramic these two materials are non-metallic. Non-metallic materials Hydraulic valve The biggest feature of the valve body is the strong corrosion resistance, Electronic Hydraulic Valve and even metal materials, hydraulic valve body can not have the advantages. Generally applicable to the nominal pressure PN ≤ 1.6MPa, the working temperature does not exceed 60 ℃ corrosive media, Electronic Hydraulic Valve non-toxic plastic hydraulic valve body is also applicable to the water supply industry. Plastic, ceramic hydraulic valve body generally can not be used alone as a hydraulic valve body material, the need for steel materials for the skeleton, lined with plastic, ceramic