Float valve

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Product Description:

1.Technical Date:

Size: DN20-DN800

Nominal Pressure: PN10/PN16/PN25

Operation Temperature: ≤80°C

Suitable Medium: Water

2. Feature:

By the main valve, needle valve, ball valve, ball valve, hydraulic control micro filter, etc to take over the system, after setting, automatic control level.

This product directly using the liquid level control, and do not need other devices and energy sources, convenient maintenance, high accuracy of liquid level control, is not affected by water pressure, the sealing is reliable.

This series valve products are widely used in high-rise buildings, living areas, such as water supply pipe network system of liquid level control of water tower, pool and other facilities.


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Q:Hydrant valve leaks, how do you close other valves? Specific steps?
In construction, according to the design specifications, fire hydrant water supply pipe is an independent water supply system, and the water supply pipeline is separated from the water supply. In the trench into door position, need to set up a system of fire fire well, there are valves, only by finding the position of tube wells into households completed fire system diagram, in turn off the total valve can.
Q:How to use current to control valve opening and closing?
Switching type (one on and off)Block digital display with the upper and lower limit control valve opening and closing is goodProbably more than 100Regulating type (to keep temperature at a constant value)With PID valve position regulator can be very good controlAbout 300 more
Q:What kind of industry does valve belong to?
Valve is the valve, regardless of other sectors
Q:What's the difference between valves and valves without valves?
In that regard, some valves are one-way valves, only out of the can
Q:What valve does the high pressure by-pass valve DN254 * 800 belong to?
High pressure bypass valve DN254 * 800 belongs to bypass valve.Function of bypass systemThe turbine by-pass device mainly has three functions of starting and overflowing:1 in the cold, warm and hot, the bypass system can realize the optimal unit start-up and shut-down in turbine operating conditions, start and stop curve can meet the requirements, two types of automatic and manual operation, with the establishment of the boiler steam temperature and steam turbine components. To shorten the start-up time.2. when the turbine is tripped, the bypass system can operate at a high speed and reach full open position.3., when the turbine load changes, the by-pass system has the regulating function, and the safety valve action can be avoided and the operation stability of the boiler can be improved when the instantaneous change of the moving state.The function of the bypass control valve:The main function of steam turbine bypass system is high pressure steam adjusting throttling and superheated steam cooling. The bypass valve to perform these functions at the same time and in low noise, small vibration, valve resistance to achieve its goal of temperature and pressure loss under the condition of touch.
Q:The valve is rusty and can not be opened. What shall I do?
Spray with rust removing agent on the rusty rotating parts of the valve. Then use an afterburner to make a tentative rotation. Open it and turn it in the opposite direction. And then spray rust remover. Repeat this several times, and the valve will probably open. Seriously rusty valve, if it really can not open, simply replace it.
Q:What are the specifications of the valves PN25, DN50?
PN25 - nominal pressure 25bar (25kgf/cm -)DN50 - nominal diameter is 50mm (2)
Q:Valve should be strictly marked according to the direction of instructions and media flow direction to determine the installation direction,
Pro, strong counterpart refers to the valve in the pipeline connection, generally refers to the thread connection or welding to connect the valve, the valve and pipeline connection imposed by the larger external force, it will cause great stress and plastic deformation, easy to cause the valve to open or close the lax.
Q:What should be checked before using the valve?
5, check valve disc or spool movement is flexible and accurate, no bias, displacement or skew phenomenon6, spring-loaded safety valve should be sealed, positioning lever type safety valve should have the weight of the device7, rubber lining, lining enamel and plastic lined valve body surface should be smooth, the lining layer and the substrate firmly, no crack, blister defects, using high frequency electric spark generator to inspect the lining surface, not found in liner breakdown (white flash phenomenon) is qualified8, the valve flange sealing surface should meet the requirements, and shall not have radial scratches
Q:How can the valve actuators be classified?
Various types of valves, with the continuous improvement of various types of equipment, process, the types of valves are still increasing. But generally speaking, they can be divided into two major groups.(1) automatic valve. A valve that moves by itself depending on the capacity of a medium (liquid, air, steam, etc.). Such as safety valve, pressure reducing valve, check valve, steam trap, air trap, emergency shut-off valve and so on. (2) drive valve. A valve operated by hand, power, hydraulic, or pneumatic. Such as gate valve, globe valve, throttle valve, regulating valve, butterfly valve, ball valve, plug valve and so on.

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