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A smooth guide into needle control valves

 


Most piping engineers, especially while dealing with potable water supply, use needle control valves. Why? Needle valves are used for controlling the flow of fluid in the most precise manner. These valves are compact and can be very easily installed. Nowadays automated needle control valves are connected to an air actuator or hydraulic motor which closes or opens the needle valve automatically. If you want to explore more about needle control valves, read this blog.

 

What are needle control valves and why are they used?

 

You must know from where the name of needle control valves has come - due to the tapered port and plug arrangement. Needle control valves are small and help in controlling the flow of fluid. These valves aid in precisely controlling the water flow. You can use needle valves even if the pressure heads or the flow rates are reduced & controlled. These valves have the capability of controlling flow and pressure. Needle valves are also known as linear motion valves and have metal-to-metal seats. Due to the small size, needle valves can be efficiently used for shut-off conditions (positive). Such control valves are capable of controlling the volume.

 

Where needle control valves are used?

 

Needle control valves are used in multiple applications where there is a need for pressure/flow regulation.

 

> Water treatment and distribution

> Potable water supply

> Reservoirs and dams

> Power plants

> Air regulation

> Sampling lines

> Abrasive services

> Flow metering applications

 

What is the working principle of needle control valves?

 

The axle ends in the tampered needle that moves into the seat valve so that it can prevent or obstruct the fluid flow through the valves. The motion of in & out of needle control valves to & from the seat of the valve is controlled with the help of a spindle that is operated through handwheels. The respective fluid turns 90 degrees which moves through the needle valve and passes via an orifice. You can change the size of the orifice by simply situating the cone as per seat. The plunger is on the screw's end so when you turn the screw, the plunger gets retracted, and fluid flow between the seat and plunger is possible.

 

What are the benefits of installing needle control valves?

 

Have a glance at some of the benefits to install needle control valves:

 

> At a low rate, the flow control is very precise.

> These control valves are smaller in size which makes the installation process hassle-free.

> For throttling purposes, you can use these valves.

> Needle control valves can easily shut off.

 

Conclusion

 

All in all, needle control valves are ideal for controlling fluid flow and pressure accurately. The arrangement of needle control valves is in such a way which allows a gradual decrease or increase in the opening by permitting precise flow regulation. While selecting the right needle control valve, read the specifications well and then contact a top supplier of needle control valves in the Middle East and GCC region.

 

We, Dutco Tennant, are glad to announce its presence at the WETEX Exhibition 2022 from 27th to 29th September 2022 at Dubai International Convention & Exhibition Centre. We will be showcasing a variety of potable water management solutions. Eye-catching seminars will be held too. Do not miss this grand exhibition. Join us at Hall: H7, Stand number 7B12. Nor registered yet? Register now only.

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