Motor Operated Valves, better known as MOV, are the valves that are extensively used in the Plant & Piping system. These valves are quite large and are often used in different applications like pump discharge, and many more.
Motor Operated Valves are also called as On-Off valves, due to the mainly On-Off service functionality involved. The motors can fully open or fully close the valves in pipelines. They are used in cooling water lines, process pipelines, etc. where there is no need for the regulation of the fluid. The motor-operated valves are mostly used to fully allow or fully close the fluid or gas flow. These valves are not used for controlling and regulating the pressure.
Some people confuse themselves between Control Valves and MOV, but they are very different. While in control valves, there is faster response, but MOV does not. The control valves can have analogue control element, but the motorised operated valves have a digital control. The control valves can be used for any type of control such as pressure control, flow control, and temperature control, etc., the motorised valves can only control the flow. The control valves are used in closed-loop control, but MOV is open loop, except precision flow control valves. Control valves are for precision control too, but MOV is not for precision control at all.
Motor operated valves can be of different types such as a gate valve, ball valve, butterfly valve, etc. They have actuator control. The electric motor is mounted on the valve and affixed to the valve stem. When the motor operates, the valve open or close.
The motorised butterfly valve was initially used without a tight closure. But now, these valves have been curated with tight seals, that are made of rubber or elastomeric materials. Butterfly valves are usually used where space is a little less. Unlike the gate valves, butterfly valves can be used for throttling or regulating the flow, along with the basic functionality of fully opening and fully closing. As compared to the gate valve, the pressure loss is small in the butterfly valve.
metal
seated butterfly valves can be used in both the
large sizes and small sizes too. These valves can be hand wheel–operated or
wrench operated or gearing mechanism. Motorized Butterfly Valves are high in
demand in both the national and international markets. The features such as
colossal strength, flawless way of functioning, high rated performance, the
durability of the Motorized Butterfly Valves makes it popular and widely
accepted. These valves are also available at most affordable prices. It has a
minimum maintenance requirement and comes with a compact design. It is easy to
use too.
