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C 9000 Series
Parker
Maze control valve is a patented product designed by Parker Valve for extremely harsh working conditions.The valve internals are a multi-stage pressure reducingand multi-channel labyrinth structure, with the mainfeatures of:
Flexible design
Flow rate control
Energy control
As the name suggests, a maze is designed to limitnoise, mainly by:
Gas dynamic noise-reducing gas or steam noise
Liquid dynamic noise -anti cavitation
1. Flow rate control
Multi stage pressure reduction, reasonable control of flow rate at each stage
Gradual expansion of flow channel cross-section,gradually reducing flow velocity
Expand the outlet size of the valve body, reducethe outlet flow rate of compressible gas,and control outlet noise
2. Flexible design
All standard pressure levels or specific pressure levels
Not limited by actual pressure difference
The pressure reduction stage is selected accordingto the working condition design
Diversified maze channel structures
Expanded channel cross-section
The pressure recovery coefficient can beinfinitely close to 1
Under the same flow coefficient and pressure recovery coefficient conditions, the height of the labyrinth disk stack, the number of pressure reduction stages, and the expansion coefficient of the flow area can be combined andad justed
The internal structure of the free expansion valveis used for high-temperature media to preventthermal shock and stress
Protective soft seal valve seat, used for high-pressureanti cavitation liquids, ensuring a Vl level leakage rating
The valve body can be cast, integral forged, orforged welded
Expansion of valve body outlet size to control flow rate
Port connection method is arbitrary
3. Energy control
Multi stage pressure reduction to eliminate highenthalpy changes
Control the isentropic transformation process toprevent crystallization effects (Joule Thomson effect)
The fluid is divided and merged multiple times withinthe maze channel,resulting in energy loss due tochanges in flow direction
Expanded channel cross-section, controlling thekinetic energy of each stage
Expand the size of the valve body outlet and controlthe kinetic energy of thevalve outlet