Flow control valve
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Size: DN20-DN800
Nominal Pressure: PN10/PN16/PN25
Operation Temperature: ≤80°C
Suitable Medium: Water
2.Feature
400 x flow control valve consists of the main valve, flow regulating valve, needle valve, pilot valve, ball valve, micro shape filter and pressure gauge of hydraulic control of system. Use of hydraulic automatic operation, control and adjust the opening of the main valve, made by the main valve flow rate remains constant.
400 x flow control valve with hydraulic control on our own efforts, do not need other devices and energy, easy maintenance, stable flow control. 400 x flow control valve is widely used in water supply network system of high-rise buildings, residential and urban water supply engineering.
When the valve from the inlet water supply, water flows through a needle valve in the main valve control room, and after a pilot valve, ball valve, from the main valve control room to export, the main valve in the fully open or floating state. Setting the upper master valve flow control valve, can be set in a main valve opening. Adjust the opening of needle valve and regulating valve spring pressure, can keep the main valve opening in setting the opening, and pilot valve to automatically adjust when pressure changes, the flow rate unchanged.
- Q: What valve is the DN 25?
- That is, the inner diameter of the valve is 25 millimeters
- Q: What does 3/4''mean in the name of the valve?
- Valve diameter, that is, we often say 6 points valve, used in English units, with metric units should be DN20.2 points DN84 points DN156 points DN20 (3/4'')1 inches DN251.2 'DN321.5 'DN402 'DN502.5 'DN653 'DN804 'DN1005 'DN1256 'DN1508 'DN20010 'DN25012 'DN300Nominal diameter (nominal, diameter), also known as the average diameter (mean, outside, diameter).The tube is thin from the metal tube, and the outer diameter of the tube is almost the same as the inner diameter of the tube, so the average value of the outer diameter of the tube and the inner diameter of the pipe is called the diameter.Because the units have metric (mm) and British (inch) distinction, there are the following methods of address.1., based on the metric system (mm), called DN (metric unit)2., on the basis of the British system (inch), called NB (inch unit)DN (nominal, diameter)NB (nominal, bore)OD (outside, diameter)4. [case]Galvanized steel pipe DN50, sch 20Galvanized steel pipe "NB2", sch 205., the outer diameter and DN, NB relationship is as follows:------DN (mm), --------NB (inch), -------OD (mm)15-------------- 1/2--------------21.320--------------3/4 --------------26.725-------------- 1, ----------------33.432-------------- 1, 1/4, -----------42.240-------------- 1, 1/2, -----------48.350-------------- 2, -----------60.365-------------- 2, 1/2, -----------73.080-------------- 3, -----------88.9100-------------- 4, ------------114.3125-------------- 5, ------------139.8150-------------- 6, ------------168.3200--------------- 8------------219.1The above data is referenced only in ASTM A53. Please note that there are some differences in external diameter with different specifications.
- Q: What does the 4 point valve mean?
- That is not clear, American Standard or GB, or what other
- Q: What are the valve types H, F, and Y? What are the meanings of these 3 letters?
- Please refer to "JB/T308-2004 valve model preparation method"Sealing surface material codeH Cr13 stainless steelF fluoroplasticY cemented carbide
- Q: Which valve can play a good regulatory role?
- A wide range of valves, the function is different, although like conventional butterfly valve, ball valve can play a regulatory role, but their role is not linear, so if you need to adjust the precision of the valve, it is best to select the control valve.
- Q: What valve does the high pressure by-pass valve DN254 * 800 belong to?
- You want to ask the classification or valve DN254 mean?. The data you gave was incomplete. No answer.
- Q: Where is it installed, what is the role, what is the material, and are there other alternatives instead of this effect?
- Main stem to prevent leakage, there are PTFE and graphite and so on. There are no other good products to replace.
- Q: What is the difference between a stop valve (a power station valve) and other valves?
- Compared with other valve products, the valve is characterized by high temperature and high pressure. If the pressure is lower than that of the universal valve, it is also lower than the common valve. Because of its performance, technical characteristics and special working conditions, the products can not be replaced by other products.The utility model is suitable for cutting off or connecting the pipeline medium on the pipelines of various systems of the fire power plant. Applicable medium: non corrosive media such as water and steam. Compared with other valve products, the valve is characterized by high temperature and high pressure and unique self sealing design. The higher the pressure, the more reliable the seal is. Because of its performance, technical characteristics and special working conditions, the products can not be replaced by other products.
- Q: someone else's home has valves, but also checked nothing, in addition to telephone repair, there are other ways? emergency
- Get some water with your neighbors first, property. That's a lie. Other people's homes do not necessarily have water.You need to keep on pressing the property.You should live in a high-rise, if there is no power failure, that is, the water tank pump failure, and urge property repair is.I hope I can help you
- Q: What's the advantage of using three way valves?
- The principle of three way valve:The most obvious three valves and other valves is the difference in appearance, three way valve has three channels, mainly used to change the medium to flow through valve three, which in addition to import A, B, C and reversing port of export, common valve is not capable of changing the flow direction of medium function. The flow direction of the medium can be determined according to requirements.
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Flow control valve
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
OKorder Financial Service
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