Types, characteristics, and principles of pressure reducing valves
Types, characteristics, and principles of pressure reducing valves
The main feature of a pressure reducing valve is that multiple pilot valves can be installed and interchanged on the same valve body to achieve temperature control, upstream pressure control, remote switch control, etc. while stabilizing the pressure.The main pressure reducing valve product names of China Pressure Reducing Valve Network include:Direct Effect-Type diaphragm Spring Reducing Valve,diaphragm Adjustable Reducing And Stabilized Valve,DJY Series Motor-driven Reducing Valve,Electric Double Seat Steam Reducing Valve,diaphragm-Type Reducing Valve,Features And Functions Of Corrugated Pipe Reducing Valve
The main types of pressure reducing valves can be divided into diaphragm type, spring diaphragm type, piston type, lever type, and bellows type according to their structural forms; Pressure relief valve According to the number of valve seats, it can be divided into single seat and double seat types; According to the position of the valve disc, it can be divided into positive action type and reverse action type.
There are many types of pressure reducing valves, including pilot piston pressure reducing valves, diaphragm pressure reducing valves, bellows pressure reducing valves, proportional pressure reducing valves,Pressure relief valve Products self operated pressure reducing valves, direct acting piston pressure reducing valves, back pressure regulating valves, and so on. They are suitable for different working media.
Pressure reducing valves are generally installed horizontally and controlled by the pressure behind the valve. When the pressure sensor detects an increase in valve pressure indication, the opening of the pressure reducing valve decreases; When the pressure decreases after detecting the pressure reducing valve, the opening of the pressure reducing valve increases to meet the control requirements.
The pressure reduction ratio of the pressure reducing valve must be higher than the system value to a certain extent; It should be able to respond to positive or negative control signals even at maximum or minimum flow rates. These valves should be selected for the effective control range, which is 20% to 80% of the maximum flow rate. Normally, it is a proportional type or has proportional characteristics. These types of valves themselves have the optimal flow characteristics and flow range required for proportional control.
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