UAE Valves is famous for Needle Valve Supplier in Dubai. Needle valves control the flow rate of the fluid within the pipeline. Liquid or gas flow rates can be precisely managed with a needle valve. The smooth control of flow is made possible by gradual adjustments to the plunger and stem. There is typically a considerable pressure drop from the intake to the output of these valves, along with modest flow rates.
Working: It is fairly easy to understand how needle valves work. The plunger can be raised and dropped by turning the actuator. The orifice – the opening through which fluid can pass changes in size as a result of this movement.
By changing the size of the orifice, the needle valve controls the flow of fluid. Slower flow rates are associated with narrower orifices. On the contrary, the flow rate increases with the size of the opening.
Functions:
1)Accurate Flow Management: are well-known for their capacity to offer accurate flow management.
2)Flow regulation: they control how gasses or liquids move through a system. 3)Operators can change the flow rate through the valve.
4)Shut-off valves: When a prompt and dependable shut-off is needed, as in emergency situations or maintenance, this feature comes in handy.
5)Compatibility with High-Pressure Systems: Some needle valve designs are constructed to sustain high pressures without sacrificing the required shut-off and flow control functions.
6)Fine Metering: Precise fluid measurement and dispensing are required in certain industries such as laboratory sciences, and chemical processing. Needle valves ensure accurate delivery of the intended quantities by enabling precise dosing and metering.
Advantages:
1)Provide more precise fluid flow control. This is due to the fact that a needle valve’s ability to form an extremely tight seal permits the fluid to pass through a considerably smaller hole. The fluid flow is substantially slower and more regulated as a result of this little hole.
2)Additional durability is added by the fact that it is less likely to corrode or clog with time.
3)Applications requiring high pressure can take advantage of them. This is because, even at high pressures, the needle’s tiny hole permits very little fluid loss.
More economical and less susceptible to need replacement or maintenance over time. Furthermore, needle valves tend to be less expensive to buy than other valves.
Industries:
1)Chemical processing
2)Gas and oil
3)Aerospace
4)Power generation
Components:
1)Valve body : serves as a main housing for the internal parts of the needle valve.
2)Stem : it is a slender and tapered rod that controls the flow of fluid by moving up and down. It allows for precise control over the flow rate by adjusting the gap between stem and the valve seat.
3)Bonnet : it is the protective layer that secures the stem and provides access for maintenance and repairs. It ensures that stem remains in position and prevent any unwanted movement that may affect flow control
4)Packing : it is the sealing material that surrounds the stem and prevents the leakage around it. It creates a tight seal between the stem and valve body.
Description:
Materials: SS316, SS316L, Duplex, Inconel 625, SS304, CF8, CF8M, F51, F53, F55,
Class: 150 to 2500
Nominal Pressure: PN10 to PN450
Size: 1/2” to 2”
Ends: Threaded, socket weld, butt weld
Operations: Hand wheel operated
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