In recent years, some new pressure Reducing Valve, such as fixed ratio pressure reducing valve, the fundamentals of the structure shown in Figure 14.2-2 shown. Given decompression principle is the use of body floating piston in the hydraulic pressure than the control, import and export of side decompression than to import and export side of the piston area is inversely proportional to. This pressure reducing valve work smoothly without vibration; the valve body spring, so spring corrosion, metal fatigue failure of the consideration; good sealing performance, no leakage, and thus both less dynamic pressure (water flow) also reduced static pressure (flow rate 0:00); especially in the decompression at the same time does not affect the water flow.

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