Z-type high-temperature high-pressure differential valve control for operating temperature <540 ℃, high-pressure boiler feed water bypass pipe, as a boiler start or low load operation, adjust the feed water flow. Applicable medium: water, oil, steam and so on. Product Structure The valve body with four throttling, mainly by the valve body, seat, stem, valve, bracket and other components, the overall was Z-type layout. Pressure from the tightly sealed structure, the higher the pressure, the better the sealing. Seat for the welding parts, composed of four parts, each part is made of stainless steel, seat sealing surface surfacing cobalt-based carbide. Throttling parts of each stage are made of a reasonable linear, due to the use of multi-stage step-down approach to prevent cavitation and noise, can smoothly adjust the flow. Stem, valve flap by the pin together, from the upper and lower bushings for guidance. Valve switch by the electric actuator to control.
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