Forged steel valve and cast steel valve is mainly steel forging technology, processing form is different. Casting is a liquid casting molding, forging is a plastic deformation process, forging molding workpiece can improve the internal structure of the organization, good mechanical properties, uniform grains, important laborious workpiece must be forged; Casting will cause organizational deflection, organizational defects, of course, casting also has its own characteristics, some forming complex workpiece forging is not easy to open the mold, it took the casting.
Cast steel is a kind of casting alloy, which is mainly used to manufacture some parts with complex shape, difficult to forge or cut and form, but requiring high strength and plasticity. Cast steel can be divided into cast carbon steel and cast alloy steel according to its chemical composition. Forged steel ball valve refers to the use of forging method and the production of all kinds of forging materials and forgings. Forged steel valve has higher quality than cast steel valve, can withstand large impact force, plasticity, toughness and other mechanical properties are also higher than cast steel.
Next, NEWSWAY Valve Company to introduce you to two common, our company produced forged steel ball valve products:
1. Fixed forged steel ball valve is mainly used to cut off or connect the medium in the pipeline, and can also be used for fluid regulation and control. The multi-pass ball valve in the pipeline can not only flexibly control the media confluence, diversion, and flow direction switch, but also can close any channel and make the other two channels connected.
2. Floating forged steel ball valve, all parts of the product are forgings, using lower mounting valve stem, equipment inverted sealing structure, inlaid valve seat, valve seat behind the equipment O-ring, to ensure that the medium is not leaking.
Similarly, taking our two products as examples, we will briefly introduce the common cast steel valve products:
1. Fixed cast steel ball valve, by cast steel ball valve opening and closing parts (ball) driven by the valve stem, and around the axis of the valve stem for rotary movement of the valve. Mainly used to cut off or connect the medium in the pipeline, can also be used for fluid regulation and control, especially suitable for fiber, small solid material and other media.
2. API 600 cast steel gate valve is suitable for cutting or connecting the pipeline medium in petroleum, chemical industry, thermal power plants and other working conditions of ANSI Class 150 ~ 2500 with working temperature < 600℃. Applicable medium: water, oil, steam, etc. Operation mode: manual, gear drive, electric, pneumatic and so on.
Post time: Dec-01-2021