Pressure reducing valve basic performance

Action principle of the choke valve is to rely on port of local resistance to water flow to reduce the water pressure in the valve, the pressure drop of range by connecting disc film or import and export pressure difference on both sides of the piston automatic adjustment. In recent years appeared some new type pressure reducing valve, such as constant ratio type pressure reducing valve.
Constant ratio reduced pressure principle is the use of the body than a floating piston in the hydraulic control, import and export import and export side piston side pressure ratio and area ratio is inversely proportional to. The pressure reducing valve work smoothly without vibration; Body without the spring, so no spring corrosion, metal fatigue failure were evident; Not leak sealing performance is good, and therefore reduced dynamic pressure and reducing static pressure; Especially in relief at the same time does not affect the water flow.
Water flow through the ARC valve, though there is a lot of head loss, but due to reduced water waste and make the system flow distribution is reasonable, improve the system layout and working conditions, so the overall is still the energy saving. Each leg of the pressure reducing valve spring applies only within a certain range of outlet pressure, beyond the scope of a spring should be replaced.
Work in the medium temperature is higher, generally choose the guide piston type pressure reducing valve or the forerunner of bellows type pressure reducing valve. Medium is air or water, general appropriate chooses direct acting diaphragm pressure-reducing valve or pilot diaphragm pressure reducing valve. Medium for steam, appropriate chooses the guide piston type pressure reducing valve or the forerunner of bellows type pressure reducing valve. For operation, adjustment and maintenance convenience, reducing valve should be installed in horizontal pipe runs.
In this type of pressure reducing valve, double diaphragm instead of the piston in the afferent type pressure reducing automatic pump recirculation valve. The increase of membrane area of the main valve to open more, and under the same pipe dimension, its capacity is larger than within the guide piston pressure reducing valve. In addition, the diaphragm is more sensitive to pressure change, the accuracy of + / - 1%. Accuracy is higher due to the downstream sensor line positioning, the location of gas or liquid less volatile. The pressure reducing valve is flexible, can use different types of pilot valve.
Combined type pressure reducing valve in ensure the premise of the unit water consumption, provide stable and reliable valve after water point low pressure cooling water. Its maximum pressure-relief than up to now. Combined recoil on the pressure reducing valve equipment poor drainage system can be applied medium, safety locking system can ensure that the system has been seriously damaged when the outlet pressure remains low.
Technical water supply system installed on a water filter, can provide unit with clean water, damage to prevent impurities into the unit. Water filter if the installation after the gate valve pressure reducing valve, the user can choose smaller pressure level of the water filter, but too much impurities will affect the stability of the pressure reducing valve performance. Technical water supply system, hydraulic control valve can be opened and fast slow close to truncate the pipeline medium flow and eliminating water hammer pressure in the pipe. Good performance of the hydraulic control valve in the open and closed at the same time to recoil drainage, ensure the BuKa resistance condition.