Why use a needle valve?
Needle valves, also known as plunger valves, are regulating valves and enable engineers to finely control and regulate water flow and pressure. Precision is achieved by fine movement of the shaft, which allows the gearbox to move the piston tube in sliding motion towards opening or closing position, depending on the control system requirements.
Where and when to use needle / plunger valves?
Needle and plunger valves can be used in many different applications, where flow or pressure regulation is required. In water treatment and distribution, dams, reservoirs, power plants and industry needle valves are e.g. used for:
- Flow control
- Pressure regulation
- Pump start
- Turbine by-pass
- Discharge
- Reservoir inlets
- Air regulation
Compared to diaphragm control valves, needle and plunger valves can be used with higher differential pressure. Needle valves can be manually actuated or can be controlled by electrical, hydraulic or pneumatic actuation.
Explore AVK needle valves
Discover the features and benefits of AVK needle valves and our variants and configurations.
