V-TORK Butterfly Valves are well suited for handling larger flow of Liquids and gases alternately of low pressure and for handling of liquids with suspended solids (Slurries).
The global butterfly valve market reached a value of US$ 9.39 billion in the past year. Butterfly valve manufacturers in india produce butterfly valves with a 4.1 % CAGR. A butterfly valve is a quarter-turn valve consisting of two semicircular rotating plates connected to a rod used to stop, regulate or start the flow of liquids through the pipe. The valve gets its name as it has similar movement as butterfly wings with 90-degree motion. Butterfly valves are used in various industries like water treatment plants, food processing, chemical, Power plants, etc.
Butterfly valves have four major internal components: Body, disk, stem, and seat. Below are the parts of the valves and how they contribute their function to the valve.
The valve body of the butterfly valves fits between two pipes or flanges. It protects the internal parts of the valve. The two types include wafer-style and lug-style valves. In wafer style, the valve is connected in the bolt holes of the pipes that run through the body. It prevents backflow in universal flow systems. In lug style, the valves are connected to the pipe through protruding lug holes that run outside the body. The butterfly valve suppliers install butterfly valves at ease.
The disk is a part that controls the flow of the liquid through the valve. In concentric disk design, the stem of the valves passes through the centerline of the disk in the same direction of media whereas for eccentric disks the stem passes behind the centerline in the opposite flow of liquid. The concentric disk is mostly utilized in low-pressure applications, whereas the eccentric designs are used in severe service applications.
It is a small part but it has an important role in the operation of butterfly valves. Butterfly valve manufacturers in India produce two types of stem: Wetted and Non-wetted. The advantage of wetted is that it is protected against any corrosive media in the line, but non-wetted is not protected against any harmful substances.
There are wafer, lug, and flange connections. Butterfly valve manufacturers in india design different automatic actuators like electric, pneumatic, hydraulic, worm gear drive. Actuators can be designed with two types: fail open ( valves stay open when there is an actuator failure) and fail-close (valves stay closed when there is an actuator failure) and stay put which comes in general.
Butterfly valves are used for On/Off isolation or control type applications. It works based on the quick shut-off principle and the main thing is pressure drop. The butterfly valve is mainly utilized to regulate the flow of liquid.
Butterfly valves can be operated both under manual, pneumatic, or electrical. If operated electronically, a signal from the remote control reaches the gearbox which turns the stem, simultaneously the disc moves its position
If pneumatically driven, providing the required air pressure piston attached to the body helps open the valve. Butterfly valve manufacturers suggest that the pneumatic is most suitable for quick operation industrial functions.
If manually operated, the disc rotates and changes its position from perpendicular to parallel the flow of media. The disc drifts away from the seat and aligns with the centerline of the valve. Now, if the valve rod is manually opened in quarter-turn ie.90 degrees, then the medium flows in full force. Then it is closed with a quarter-turn operation. There occurs a slight pressure drop when the valve opens. The quarter-turn valves shall be operated incrementally.FF
Butterfly valve manufacturers may provide different installed flow characteristics are as follows,
Most industrial applications go for high tolerant, wear-resistant butterfly valves with special features. Butterfly valve manufacturers recommend butterfly valves for most industrial applications and it tops the choice for industries. In comparison with other control valves, butterfly valves can able to withstand between 150 to 740 psi cold working pressure and temperature up to 300 ℉. It is most apt for steam and water pipelines.
Certified food grade valve seats are preferred for food industries. Choose a butterfly valve with a white seat, epoxy coated, nylon, iron, to regulate the liquid flow in food processing pipelines. Sanitary maintenance is more important in food industries.
Due to its high durability in saltwater, the ABS-approved valves are more effective in ships. The compact design, fire safety, and tight shut-offs make it the best choice in the ship piping system.
It has diverse industrial applications in chemical, pharmaceutical, wastewater management, and fuel supply. As large sizes are available from butterfly valve manufacturers in India, it is suitable for handling large slurries at low pressures.
Butterfly valve manufacturers generally use stainless steel, Carbon steel, cast iron, and ductile iron. To hold the pressures for a longer duration and durability purposes, butterfly valve suppliers suggest cast iron as the prime material of choice. The body of the butterfly valves is mostly made up of cast iron, ductile iron, carbon steel, stainless steel, and exotic materials. The disc materials should be carefully chosen so that it does not interact with actual fluid-flowing pipelines. The disc materials include ductile iron, stainless steel, epoxy-coated, and nickel-plated materials. Get premium quality control valves from Vtork butterfly valve manufacturers in India.
V-Tork controls have been one of the leading butterfly valve manufacturers systems since 2008. Being a good-quality manufacturer, We manufacture butterfly valves under three categories as follows,
The concentric butterfly valves with shafts located in the center of the disc have wide applications in handling larger fluids of liquids, gases, and suspended solids at low pressure. The maximum operating pressure is from 16- 25 bar.
The high-performance double eccentric butterfly valves are best suited for the liquid and gasses industry. It has varied features like standardized actuation flange, twin disc, polygon stem, and fire safe design. The maximum working pressure is 50 bar and the cold temperature it can withstand is -29℃.
Triple eccentric butterfly valves are designed cone angles along with two eccentric shaft offsets that allow the disc to seal against the seats with zero friction. The main advantage is that the conical sealing design results in extendable valve life.