Industrial valve is one kind of mechanical device which is one important part in pipeline systems, and is used to connect, cut off and regulate the medium flows. With different material used for different valves, different valves can be used for different mediums. Today we are going to discuss how to choose a right industrial valve for our projects, gate valve, globe valve, butterfly valve, check valve, ball valve or control valve??
Tips for how to choose the right industrial valve?
1. Clarify the purpose of the valve in the equipment or pipelines.
Determine the working condition of the valve: the nature of the applicable medium, working pressure of the valve, working temperature of the valve, and the driving method of the valve.
2. select the proper valve type:
In order to choose the right type of valve, the engineer or the designer should grasp the entire product process and operation conditions, when selecting what kind of valves should be used, the designer should first grasp the structure characteristics and performance of each type of valve.
3. determine the end connect type of the valve:
There are threaded end connect, flange end connect and welded end connect, among these end connections, the threaded and flange connections are widely used. Threaded connection is mainly for valves with nominal diameter under 50mm. If the nominal diameter of the valve is large, it will be difficult to install and seal for the connect part. For flange end connect valves, it will be easy to install ad disassemble, but compared with threaded connect valves, flange connect valve is more heavier, and has higher price, so flange end connect valve is suitable for all nominal diameters and pressure valves.
Welded end connect valves are suitable for harsher working condition, and are more reliable than flange end connect valves. However, it is difficult for welded end connect valves to disassemble and re-install. So usually the welded end connect valves are limited to the occasions where it needs run reliably for a long time, or where the working condition are severe, or the working temperature is high.
4. what kind of material should be selected for the valves:
When selecting the material of the valve body, internal parts and sealing surface, in addition to considering the physical properties(temperature, pressure) and chemical properties(corrosive) of the working medium, the cleanliness of the medium(with or without solid particles) should also be grasped. In addition, it is necessary to refer to the relevant regulations of the country and the relevant department. Correct and reasonable selection of valve material can obtain the most economical service life and best performance of the valves.
The selection sequence of valve body material is: cast iron-carbon steel-stainless steel, the selection sequence of sealing ring material is: rubber-brass-alloy steel-F4.
In addition, the flow rate and pressure level of the fluid flowing through the valve should also be determined, and the appropriate valve should be selected according to the existing data( such as valves product catalogs, valves product samples,etc).
If you want to know what kind of industrial valves should be used in your projects, kindly contact us: we can give you professional advice according to the real working conditions;
Belo Valve is a more than 15 years professional manufacturer for industrial valves, like butterfly valves( center line wafer butterfly valve, manual butterfly valve, lever driving butterfly valve, butterfly valve with worm gear box, lug type butterfly valve, soft seal butterfly valves, hard seal butterfly valves, flange butterfly valves, ductile cast iron butterfly valves, stainless steel butterfly valve), gate valves(including DINF4 gate valves, DINF5 gate valves, DIN3352 gate valves, rising stem gate valves, non rising stem gate valves, soft seal gate valves, hard seal gate valves, hydraulic gate valves, sluice valves), globe valves( DIN globe valves, bellows globe valves, electric globe valve), ball valves( welded ball valves, soft seal ball valves, stainless steel ball valves, WCB ball valves, ductile cast iron ball valves, API ball valves), check valves( wafer type check valves, swing check valves, rubber disc check valves, ball type check valve, foot valve/bottom valve), fire protection valves( grooved butterfly valves, grooved gate valves, grooved strainers, grooved check valves), hydraulic control valves,etc.