Flow control valve

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1.Technical Date:

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 do you mean by "P54" in the valve z962y-p54 100V?: 1, P54 is the valve body temperature is greater than or equal to 545 degrees, 100V is 10Mpa, that is, 100 kilograms, the valve name on all.2, valve (Famen) is a fluid conveying system control components, with cut-off, regulation, diversion, and prevent reverse flow, voltage regulation, shunt or overflow, pressure relief and other functions. Valves used in fluid control systems, from the simplest stop valve to a very complex automatic control system used in a variety of valves, a wide range of varieties and specifications. Valves can be used to control air, water, steam, a variety of corrosive media, mud, oil, liquid metal and radioactive media and other types of fluid flow. The valve according to the material is divided into cast iron valves, cast steel valves, stainless steel valves (201, 304, 316), chrome molybdenum steel, chromium molybdenum vanadium steel valves, valve, dual phase steel valves, plastic valves, non-standard customized valve material etc..

Q:Is the filter also valve?: The filter is in fact a low inlet and outlet shut-off valve with no disc and valve head. The filter screen is arranged in the middle, to control the filter according to the number of travel impurities. Usually follow the valve to tender, but not valves.

Q:Why can't the clip type check valve be directly connected with the pipe mouth or other valves?: The clip type check valve is made up of two discs to prevent backflow.If the clip check valve is connected to the other valve, the disc may touch the valve and cause the check valve not to be fully opened or closed. This is a preliminary analysis of "enter the valve", for reference only!

Q:How about leaking water pipe valve?: What specific circumstances, I teach you repair what valve, how big, which seal leaks

Q:So how does the valve turn on?: The handle of the valve is opened along the pipe and perpendicular to the pipe

Q:In the fire drawing, what valve does the following valve represent?: 1, fire drawings, the following valve signal valve and alarm valve.2 、 signal valve is the best matching product of automatic fire sprinkler system. The structure characteristics and working principle: the top design electrical device the butterfly valve of the worm and the worm gear driving device, and with the stem straight connecting transmission. In the closed precision electromechanical device, opening mechanical instructions and imported electrical components and parts with rust proof valve. The output signal is stable and reliable for a long time.3 、 alarm valve products are wet alarm valve, dry alarm valve, rain alarm valve, pre acting alarm valve and so on. It is the core component of wet automatic sprinkler system. The water enters from the bottom of the valve body and closes the check valve through the dead weight inside the valve body to form a standby system with water pressure. The high pressure gauge indicates the system pressure, and the low pressure gauge indicates the pressure outside the system. When the protected area fire, high temperature make the nozzle temperature sensing element of blast nozzle sprinkler system, pressure drop, the valve opens, water flows continuously into the system, the nozzle opening, continuous sprinkler. At the same time, a small amount of water enters the alarm tube from the inner hole of the valve seat, passes through the filter, the retarder, and then pushes the hydraulic alarm to alarm. In addition, after the pressure switch is activated, the electrical signal is issued and the make-up water is started.

Q:Air compressor out of the gas with what kind of valve control okay, globe valve or other?: If the factory uses, it is recommended stainless steel ball valve

Q:G what's the meaning of the valve?: G is the diaphragm valve, valve type code, there are other types of valve code.A D is a safety valve, butterfly valve, check valve (H valve), J is the cut-off valve, throttle valve is L, P is Q is the drain valve, ball valve, S trap, U X is a plunger valve, plug valve, Y valve, Z valve.

Q:What items and detailed procedures should be inspected for valve size inspection?: The American Standard (American Society of mechanical engineers ASME B 16.10-2000). Internet access can be downloaded, such as free standards to share and download sites. If you need any other valve standard, send me the mailbox.

Q:How big valves are used in the DN90 pipeline?: DN is the nominal diameter, only DN80, DN100.It is estimated that your pipe is outside diameter 89mm, that is DN80, that is to choose DN80 valve.

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