Air actuated butterfly valve represents an innovative and reliable flow control solution for different industrial applications. The high-performance valve integrates advanced pneumatic actuators with a strong and durable central line of butterfly valves. The valve features industry-leading materials and state-of-the-art technology to deliver efficient operation and flawless performance and long-lasting durability. Your systems require the absolute best flow control solution which you should never compromise on.
Features and Benefits
The butterfly valve actuator provides fast 90-degree rotation to achieve full open or full close positions which enables proper fluid flow regulation.
The product range includes sizes from 2″ to 80″ (DN50mm – DN2000mm) to meet different industrial needs.
The valve construction includes ASTM A536 65-45-12, WCB, CF8M for the body and SS420, SS431 for the stem materials which provide durable operation with corrosion protection.
The wafer body style of this product features an easy installation process and compact design which helps save space in your facility.
The product supports multiple flange types including EN 1092 PN 6/PN10/PN16, ASME Class 150, AS 4087 PN10/ PN16 and JIS 5K/10K.
The valve operates at 16bar for DN50-DN300 and 10bar for DN350-DN2000 pressure levels while working within a temperature range of -20 °C to + 140 °C (subject to pressure, medium, and material conditions).
The butterfly valve with pneumatic actuator includes a versatile pneumatic actuator which provides:
The double acting (failure to maintain) action provides superior control and efficiency.
The valve offers two single acting operation modes: normally closed (failure to close) and normally open (failure to open) for increased flexibility.
The valve can be customized with optional accessories including a solenoid valve and limit switch box and air filter relief pressure valve and E/P positioned and manual device to meet specific requirements.
The pneumatic butterfly valve represents a complex flow control device in the valve manufacturing industry because it provides precise and reliable fluid dynamic control. The valve contains a disc which operates on a rotating shaft. The disc maintains a right angle position relative to the flow when fully open until the valve actuation causes it to rotate for controlling media flow through the pipeline. The disc’s exact positioning enables optimal flow rate regulation through the pipeline.
How does a pneumatic butterfly valve work?
The core component of its operation consists of a strong disc which matches the pipe diameter. The disc rests on a strong shaft that turns through a 90-degree arc when activated by a pneumatic actuator. The disc aligns parallel to the fluid flow when fully open which creates minimal resistance for unobstructed passage. The valve stops fluid movement completely when the disc rotates to face the flow direction in its closed position.
What types of butterfly valves are there？
Butterfly valves include wafer type, flange type, LUG type, high performance butterfly valve, ptfe lined butterfly valve
What are the types of pneumatic actuators?
Double acting, single acting, scotch yoke and rack and pinion, accessories: solenoid valve, limit switch, electric positioner
Pneumatic actuator working principle:
Double acting
(Counterclockwise)
Compressed air to Port 2 forces the pistons outwards, causing the output shaft to turn counterclockwise, while the air is being exhausted from Port 4.(Clockwise) Air to Port 4 forces the pistons inwards, causing the pinion to turn clockwise while the air is being exhausted from Port 2.
Single acting
(Clockwise)
Loss of air pressure, the stored energy in the springs forces the pistons inwards,the pinion turns clockwise, while air is being exhausted from Port 4.
(Counterclockwise)
Compressed air to Port 2 forces the pistons outwards, causing the output shaft to turn counterclockwise, while the air is being exhausted from Port 4.(Clockwise) Air to Port 4 forces the pistons inwards, causing the pinion to turn clockwise while the air is being exhausted from Port 2.
Single acting
(Clockwise)
Loss of air pressure, the stored energy in the springs forces the pistons inwards,the pinion turns clockwise, while air is being exhausted from Port 4.
