I. Overview of Hydraulic Control Valves
Hydraulic automatic valves are suitable for centrifugal pump outlets, featuring functions such as flow control, non-return, light load start-up, water hammer elimination, and flow regulation, effectively protecting the pump and pipeline equipment. The valve opening can be observed on-site and has a remote digital display. Additionally, it can output a 4-20mA DC current for centralized computer control.
Section 2: Technical Features of Hydraulic Control Valves
Low resistance: Utilizes directional valve control technology, with high valve plate opening, low resistance, resistance coefficient 0.3-1.1.
Compact size: The valve body adopts a butterfly structure, with a volume only 1/3 to 1/5 of the same diameter multi-functional hydraulic control valve.
Lightweight: Only 1/3 to 1/5 the weight of a multi-functional hydraulic control valve.
Long lifespan: Utilizes oblique sealing edges with automatic compensation for seal face wear, significantly extending service life.
Automatic Control: Valves and pumps are linked through the pipeline medium, with pump-valve联动, no manual intervention required; pump on, valve opens; pump off, valve closes.
Energy-saving and Consumption Reduction: Driven by medium pressure without external power supply, achieving energy-saving and consumption reduction.
Sealed Well: Utilizing a combination of soft and hard dual-sealing technology, effectively resolves the sealing challenges of large-diameter valves, ensuring a long-term "0" leakage rate.
Easy to Open and Close: The large valve plate features an eccentric structure with minimal friction torque, ensuring smooth opening and closing.
Easy Maintenance: Control system components are all outside the valve body, making adjustment simple, repair convenient, and capable of online inspection.
Section 2: Main Components Material for Hydraulic Control Valves
Valve body: Gray cast iron, cast steel
Draught Plate: Gray Cast Iron, Cast Steel, Ductile Cast Iron
Valve stem: Stainless steel
Filling Material: Polytetrafluoroethylene
Seal: Nitrile rubber
