What is a Needle Valve?
Needle valves, sometimes also called submersible valves, are adjustment valves that allow engineers to precisely control and regulate water flow and pressure. The precision is achieved through the fine movement of the shaft, which moves the piston tube of the actuator into open or closed positions, depending on the requirements of the control system. Needle valves can be used in many applications where flow or pressure regulation is needed, such as in water treatment and distribution systems, dams, reservoirs, and power plants.
Where are Needle Valves Used?
Needle valves are used in applications where precise flow control is required. They are commonly used in the following industries:
-
Oil and Gas Industry: To control the flow of liquids and gases in pipelines and other process systems.
-
Chemical Processing Plants: To control the flow of chemicals and other liquids.
-
Power Plants: To control the flow of steam and other liquids.
-
Water Treatment Plants: To control the flow of water and other fluids.
-
Pharmaceutical Industry: To control the flow of liquids and gases during production processes.
-
HVAC Systems: To control air and other fluids in heating, ventilation, and air conditioning systems.
-
Food and Beverage Industry: To control the flow of liquids and gases in production processes.
-
Automotive Industry: To control the flow of fuel, oil, and coolant in vehicle systems.
-
Aerospace Industry: To control the flow of liquids in aircraft systems.
-
Medical Devices: To control the flow of medicines and other liquids and gases.
General Features of Needle Valves
-
Body: AISI 304 Stainless Steel
-
Ball: AISI 304 Stainless Steel
-
Connections: BSP Threaded
-
Nominal Diameter: DN08 (1/4”) – DN25 (1”)
-
Pressure Rating: Max. 63 bar
-
Temperature: According to material, -10ºC to +180ºC
Applications of Needle Valves
-
Flow control
-
Pressure regulation
-
Pump start-up
-
Turbine bypass
-
Discharge
-
Reservoir inlets
-
Air regulation
Components
-
Body
-
Stem
-
Seal
-
Nut