Pneumatic Butterfly Valve
We supply the automated butterfly valves with actuators in different sizes from DN 25 - DN 1200 with pneumatic actuators. Up to DN 300, you can order directly from the store, and from DN 300 12'' inch to DN 1200 48'' inch.
Assembly: Fergo offers fully assembled butterfly valves with pneumatic or electric actuators with additional accessories such as a solenoid valve, mounting bridge, adapter, and body fittings such as position indicator, position transmitter, limit switch, positioner.
Pneumatic butterfly valve: Single acting & double acting actuator
The pneumatic butterfly valve is a versatile control solution for regulating fluid flow in various industrial settings. Equipped with an actuator, this valve efficiently opens and closes, ensuring precise control over the process.
The pneumatic actuation system comes in two types: single acting and double acting. The single acting pneumatic actuator uses air pressure to open or close the valve, while the double acting pneumatic actuator utilizes air pressure for both opening and closing operations. These actuators provide efficient and responsive control, adding flexibility to the system.
AK201 Butterfly valve DN 100 PN10/16 EPDM double acting pneumatic actuator Product number: 150-1552-12-DA
Flange butterfly valve DN 100 pneumatic actuator Butterfly valve connection PN10/16, butterfly valve body made of ductile cast iron GGG40, butterfly valve disc made of stainless steel (1.4408), seat ring made of EPDM with pneumatic double-acting quarter-turn actuator 90 degrees, max. operating pressure 8 bar, designed for 6 bar pilot pressure
Sleeve material :
EPDM
EPDM
Actuation :
Pneumatic Actuator
Pneumatic Actuator
Body:
Ductile Cast Iron (GGG40)
Ductile Cast Iron (GGG40)
Nominal width :
DN100 - 4'' inch
DN100 - 4'' inch
Disc :
Stainless steel
Stainless steel
Design :
Lug
Lug
Available, delivery time: in stock
AK210 Butterfly valve DN 100 PN16 FPM/FKM (Viton) double-acting pneumatic actuator Product number: 150-1609-12-DA
Wafer type butterfly valve DN 100, connection PN6/10/16/150lbs, body made of nodular cast iron GGG40, disc stainless steel 1.4408, seat ring FPM / FKM (Viton) with pneumatic quarter-turn actuator double acting
Design :
Wafer
Wafer
Disc :
Stainless steel
Stainless steel
Actuation :
Pneumatic Actuator
Pneumatic Actuator
Nominal width :
DN100 - 4'' inch
DN100 - 4'' inch
Sleeve material :
FPM/FKM - (Viton)
FPM/FKM - (Viton)
Body:
Ductile Cast Iron (GGG40)
Ductile Cast Iron (GGG40)
Available, delivery time: in stock
AK200 Butterfly valve DN 150 PN16 EPDM double acting pneumatic actuator Product number: 150-1551-14-DA
Wafer type butterfly valve DN 150 EPDM double acting pneumatic actuator Design wafer type butterfly valve DN 150 with pneumatic actuator, butterfly valve connection PN10/16/150lbs, butterfly valve body made of ductile iron GGG40, butterfly valve disc made of stainless steel (1.4408), seat ring made of EPDM with pneumatic double acting quarter turn actuator 90 degrees, Max. Operating pressure 8 bar, Designed for 6 bar pilot pressure
Design :
Wafer
Wafer
Disc :
Stainless steel
Stainless steel
Actuation :
Pneumatic Actuator
Pneumatic Actuator
Nominal width :
DN150 - 6'' inch
DN150 - 6'' inch
Body:
Ductile Cast Iron (GGG40)
Ductile Cast Iron (GGG40)
Sleeve material :
EPDM
EPDM
Available, delivery time: in stock
AK200 Butterfly valve DN 125 PN10/16 NBR double-acting pneumatic actuator Product number: 150-1553-13-DA
Wafer type butterfly valve DN 125 NBR pneumatic actuatorWafer type butterfly valve DN 125 with actuator, butterfly valve connection PN10/16/150lbs, butterfly valve body made of ductile cast iron GGG40, butterfly valve disc made of stainless steel (1.4408), seat ring made of NBR with pneumatic double-acting quarter turn actuator 90 degrees, Max. Operating pressure 8 bar
Body:
Ductile Cast Iron (GGG40)
Ductile Cast Iron (GGG40)
Nominal width :
DN125 - 5'' inch
DN125 - 5'' inch
Sleeve material :
NBR
NBR
Actuation :
Pneumatic Actuator
Pneumatic Actuator
Disc :
Stainless steel
Stainless steel
Design :
Wafer
Wafer
Available, delivery time: in stock
AK200 butterfly valve DN 100 PN16 EPDM double acting pneumatic actuator Product number: 150-1551-12-DA
Wafer type butterfly valve DN 100 EPDM pneumatic actuator Wafer type butterfly valve DN 100 with actuator, butterfly valve connection PN10/16/150lbs, butterfly valve body made of ductile iron GGG40, butterfly valve disc made of stainless steel (1.4408), seat ring made of EPDM with pneumatic double acting quarter turn actuator 90 degrees, Max. Operating pressure 8 bar, Designed for 6 bar pilot pressure
Design :
Wafer
Wafer
Disc :
Stainless steel
Stainless steel
Actuation :
Pneumatic Actuator
Pneumatic Actuator
Nominal width :
DN100 - 4'' inch
DN100 - 4'' inch
Body:
Ductile Cast Iron (GGG40)
Ductile Cast Iron (GGG40)
Sleeve material :
EPDM
EPDM
Available, delivery time: in stock
AK201 Butterfly valve DN 125 PN10/16 EPDM double acting pneumatic actuator Product number: 150-1552-13-DA
Lug type butterfly valve DN 125 PN10/16 EPDM pneumatic actuator Flange butterfly valve DN 125 with pneumatic actuator, butterfly valve connection PN10/16, butterfly valve body made of ductile cast iron GGG40, butterfly valve disc made of stainless steel (1.4408), seat ring made of EPDM with pneumatic double-acting quarter-turn actuator 90 degrees, max. operating pressure 8 bar, designed for 6 bar pilot pressure
Disc :
Stainless steel
Stainless steel
Actuation :
Pneumatic Actuator
Pneumatic Actuator
Design :
Lug
Lug
Body:
Ductile Cast Iron (GGG40)
Ductile Cast Iron (GGG40)
Nominal width :
DN125 - 5'' inch
DN125 - 5'' inch
Sleeve material :
EPDM
EPDM
Available, delivery time: in stock
AK210W Butterfly valve DN 80 PN16 DVGW drinking water EPDM single-acting pneumatic actuator Product number: 150-1605-11-SR
Wafer type butterfly valve DN 80, connection PN6/10/16/150lbs, body made of nodular cast iron GGG40, disc made of stainless steel 1.4408, seat ring made of EPDM, approval: DVGW drinking water with pneumatic quarter-turn actuator single-acting
Design :
Wafer
Wafer
Disc :
Stainless steel
Stainless steel
Actuation :
Pneumatic Actuator
Pneumatic Actuator
Nominal width :
DN80 3'' inch
DN80 3'' inch
Body:
Ductile Cast Iron (GGG40)
Ductile Cast Iron (GGG40)
Sleeve material :
EPDM
EPDM
Available, delivery time: in stock
AK200 Butterfly valve DN 50 PN10/16 EPDM double acting pneumatic actuator Product number: 150-1551-09-DA
Wafer type butterfly valve DN 50 pneumatic actuatorWafer type butterfly valve DN 50 with actuator, butterfly valve connection PN10/16/150lbs, butterfly valve body made of ductile iron GGG40, butterfly valve disc made of stainless steel (1.4408), seat ring made of EPDM with pneumatic double acting quarter turn actuator 90 degrees, Max. Operating pressure 8 bar, Designed for 6 bar pilot pressure
Design :
Wafer
Wafer
Disc :
Stainless steel
Stainless steel
Nominal width :
DN50 - 2'' inch
DN50 - 2'' inch
Actuation :
Pneumatic Actuator
Pneumatic Actuator
Body:
Ductile Cast Iron (GGG40)
Ductile Cast Iron (GGG40)
Sleeve material :
EPDM
EPDM
Available, delivery time: in stock
AK210G Butterfly valve DN 50 PN16 DVGW gas NBR single-acting pneumatic actuator Product number: 150-1603-09-SR
Wafer type butterfly valve DN 50, connection PN6/10/16/150lbs, body made of nodular cast iron GGG40, disc stainless steel 1.4408, seat ring NBR, DVGW gas with pneumatic quarter-turn actuator single acting
Disc :
Stainless steel
Stainless steel
Nominal width :
DN50 - 2'' inch
DN50 - 2'' inch
Actuation :
Pneumatic Actuator
Pneumatic Actuator
Sleeve material :
NBR
NBR
Body:
Ductile Cast Iron (GGG40)
Ductile Cast Iron (GGG40)
Design :
Wafer
Wafer
Available, delivery time: in stock
AK200 butterfly valve DN 100 PN10/16 NBR double-acting pneumatic actuator Product number: 150-1553-12-DA
Wafer type butterfly valve DN 100 pneumatic actuator Wafer type butterfly valve DN 100 with actuator, butterfly valve connection PN10/16/150lbs, butterfly valve body made of ductile cast iron GGG40, butterfly valve disc made of stainless steel (1.4408), seat ring made of NBR with pneumatic double-acting quarter-turn actuator 90 degrees, Max. Operating pressure 16 bar
Sleeve material :
NBR
NBR
Body:
Ductile Cast Iron (GGG40)
Ductile Cast Iron (GGG40)
Nominal width :
DN100 - 4'' inch
DN100 - 4'' inch
Actuation :
Pneumatic Actuator
Pneumatic Actuator
Disc :
Stainless steel
Stainless steel
Design :
Wafer
Wafer
Available, delivery time: in stock
AK201 Butterfly valve DN 65 PN10/16 EPDM double acting pneumatic actuator Product number: 150-1552-10-DA
Flange butterfly valve DN 65 EPDM with pneumatic actuator Flange butterfly valve DN 65 with pneumatic actuator, butterfly valve connection PN10/16, butterfly valve body made of ductile cast iron GGG40, butterfly valve disc made of stainless steel (1.4408), seat ring made of EPDM with pneumatic double-acting quarter-turn actuator 90 degrees, max. operating pressure 8 bar, designed for 6 bar pilot pressure
Disc :
Stainless steel
Stainless steel
Sleeve material :
EPDM
EPDM
Body:
Ductile Cast Iron (GGG40)
Ductile Cast Iron (GGG40)
Design :
Lug
Lug
Nominal width :
DN65 - 2 1/2'' inch
DN65 - 2 1/2'' inch
Actuation :
Pneumatic Actuator
Pneumatic Actuator
Available, delivery time: in stock
AK210G Butterfly valve DN 150 PN16 DVGW gas NBR single-acting pneumatic actuator Product number: 150-1603-14-SR
Wafer type butterfly valve DN 150, connection PN6/10/16/150lbs, body made of nodular cast iron GGG40, disc made of stainless steel 1.4408, seat ring made of NBR, approval: DVGW Gas with pneumatic quarter-turn actuator single acting
Design :
Wafer
Wafer
Disc :
Stainless steel
Stainless steel
Actuation :
Pneumatic Actuator
Pneumatic Actuator
Nominal width :
DN150 - 6'' inch
DN150 - 6'' inch
Sleeve material :
NBR
NBR
Body:
Ductile Cast Iron (GGG40)
Ductile Cast Iron (GGG40)
Available, delivery time: in stock
AK201 Butterfly valve DN 125 PN10/16 NBR double acting pneumatic actuator Product number: 150-1554-13-DA
Lug butterfly valve DN 125 PN10/16 NBR pneumatic actuatorFlange butterfly valve DN 125 with pneumatic actuator, butterfly valve connection PN10/16, butterfly valve body made of nodular cast iron GGG40, butterfly valve disc made of stainless steel (1.4408), seat ring made of NBR with pneumatic double-acting quarter-turn actuator 90 degrees, max. operating pressure 8 bar, designed for 6 bar pilot pressure
Disc :
Stainless steel
Stainless steel
Nominal width :
DN125 - 5'' inch
DN125 - 5'' inch
Body:
Ductile Cast Iron (GGG40)
Ductile Cast Iron (GGG40)
Design :
Lug
Lug
Sleeve material :
NBR
NBR
Actuation :
Pneumatic Actuator
Pneumatic Actuator
Available, delivery time: in stock
AK210 Butterfly valve DN 65 PN16 FPM/FKM (Viton) double-acting pneumatic actuator Product number: 150-1609-10-DA
Wafer type butterfly valve DN 65, connection PN6/10/16/150lbs, body made of ductile cast iron GGG40, disc made of stainless steel 1.4408, seat ring made of FPM/FKM(Viton) with pneumatic actuator double acting quarter turn.
Design :
Wafer
Wafer
Disc :
Stainless steel
Stainless steel
Actuation :
Pneumatic Actuator
Pneumatic Actuator
Sleeve material :
FPM/FKM - (Viton)
FPM/FKM - (Viton)
Nominal width :
DN65 - 2 1/2'' inch
DN65 - 2 1/2'' inch
Body:
Ductile Cast Iron (GGG40)
Ductile Cast Iron (GGG40)
Available, delivery time: in stock
AK200 butterfly valve DN 200 PN16 EPDM double acting pneumatic actuator Product number: 150-1551-16-DA
Wafer type butterfly valve DN 200 EPDM pneumatic actuatorWafer type butterfly valve DN 200 with actuator, butterfly valve connection PN10/16/150lbs, butterfly valve body made of ductile cast iron GGG40, butterfly valve disc made of stainless steel (1.4408), seat ring made of EPDM with pneumatic double acting quarter turn actuator 90 degree
Design :
Wafer
Wafer
Sleeve material :
EPDM
EPDM
Nominal width :
DN200 - 8'' inch
DN200 - 8'' inch
Actuation :
Pneumatic Actuator
Pneumatic Actuator
Disc :
Stainless steel
Stainless steel
Body:
Ductile Cast Iron (GGG40)
Ductile Cast Iron (GGG40)
Available, delivery time: in stock
AK211G Gas butterfly valve DN 300 PN10 DVGW gas NBR double-acting pneumatic actuator Product number: 150-1623-20-DA
Gas butterfly valve - flanged butterfly valve DN 300 gas flanged gas butterfly valve DN 300 connection flange PN10, body made of nodular cast iron GGG40, disc made of stainless steel 1.4408, seat ring made of NBR, DVGW gas approval with pneumatic quarter turn actuator double acting
Disc :
Stainless steel
Stainless steel
Body:
Ductile Cast Iron (GGG40)
Ductile Cast Iron (GGG40)
Design :
Lug
Lug
Sleeve material :
NBR
NBR
Nominal width :
DN300 - 12'' inch
DN300 - 12'' inch
Actuation :
Pneumatic Actuator
Pneumatic Actuator
Available, delivery time: in stock
AK210 Butterfly valve DN 65 PN16 EPDM single-acting pneumatic actuator Product number: 150-1601-10-SR
Wafer type butterfly valve DN 65, connection PN6/10/16/150lbs, body made of ductile cast iron GGG40, disc made of stainless steel 1.4408, seat ring made of EPDM with single acting pneumatic actuator
Design :
Wafer
Wafer
Sleeve material :
EPDM
EPDM
Body:
Ductile Cast Iron (GGG40)
Ductile Cast Iron (GGG40)
Nominal width :
DN65 - 2 1/2'' inch
DN65 - 2 1/2'' inch
Actuation :
Pneumatic Actuator
Pneumatic Actuator
Disc :
Stainless steel
Stainless steel
Available, delivery time: in stock
AK201 Lug butterfly valve DN 50 PN10/16 EPDM double acting pneumatic actuator Product number: 150-1552-09-DA
Flanged butterfly valve DN 50 with pneumatic actuatorLug connection PN10/16, butterfly valve body made of nodular cast iron GGG40, butterfly valve disc made of stainless steel (1.4408), seat ring made of EPDM with pneumatic double-acting quarter-turn actuator 90 degrees, max. operating pressure 8 bar, designed for 6 bar pilot pressure
Disc :
Stainless steel
Stainless steel
Nominal width :
DN50 - 2'' inch
DN50 - 2'' inch
Actuation :
Pneumatic Actuator
Pneumatic Actuator
Design :
Lug
Lug
Body:
Ductile Cast Iron (GGG40)
Ductile Cast Iron (GGG40)
Sleeve material :
EPDM
EPDM
Available, delivery time: in stock
AK211W Butterfly valve DN 80 PN16 DVGW drinking water EPDM double-acting pneumatic actuator Product number: 150-1625-11-DA
Flanged butterfly valve DN 80 for water, connection flanges PN10/16, body made of cast iron GGG40, disc made of stainless steel 1.4408, seat ring made of EPDM, approval: DVGW for drinking water with pneumatic quarter-turn actuator double-acting
Disc :
Stainless steel
Stainless steel
Actuation :
Pneumatic Actuator
Pneumatic Actuator
Nominal width :
DN80 3'' inch
DN80 3'' inch
Design :
Lug
Lug
Body:
Ductile Cast Iron (GGG40)
Ductile Cast Iron (GGG40)
Sleeve material :
EPDM
EPDM
Available, delivery time: in stock
AK200 butterfly valve DN 80 PN10/16 NBR single-acting pneumatic actuator Product number: 150-1553-11-SR
Wafer type butterfly valve DN 80 NBR pneumatic actuator Wafer type butterfly valve DN 80 with spring closing actuator, butterfly valve connection PN10/16/150lbs, butterfly valve body made of ductile cast iron GGG40, butterfly valve disc made of stainless steel (1.4408), seat ring made of NBR with pneumatic single acting quarter turn actuator 90°
Sleeve material :
NBR
NBR
Body:
Ductile Cast Iron (GGG40)
Ductile Cast Iron (GGG40)
Disc :
Stainless steel
Stainless steel
Actuation :
Pneumatic Actuator
Pneumatic Actuator
Design :
Wafer
Wafer
Nominal width :
DN80 3'' inch
DN80 3'' inch
Available, delivery time: in stock
How does the single-acting pneumatic butterfly valve work?
A single-acting pneumatic butterfly valve works with a pneumatic actuator that is operated with compressed air. The actuator opens the butterfly valve by moving a diaphragm or piston with compressed air, causing the disc of the butterfly valve to turn to the open position and release the flow. As soon as the compressed air supply is interrupted, an integrated spring ensures that the butterfly valve automatically returns to its initial position (de-energised closed). This design offers a safe fail-safe function, as the valve closes or opens automatically in the event of a compressed air failure, depending on the configuration. Such valves are often used in industrial applications, especially for controlling liquids or gases.
How does the double-acting pneumatic butterfly valve work?
A double-acting pneumatic butterfly valve works with a pneumatic actuator that uses compressed air to open and close the valve. In contrast to single-acting actuators, the double-acting actuator does not have a return spring, but controls both directions of movement using only air pressure. By introducing compressed air into the respective chamber of the actuator, the disc of the butterfly valve is precisely rotated to the desired position to regulate or completely stop the flow. This design allows for greater control flexibility and is often used in applications where fast and precise switching is required.
Important accessories for pneumatic butterfly valves: Optimising function and automation
Numerous accessories are available for butterfly valves with single or double-acting pneumatic actuators to improve function and automation. The most important of these include the Switchmaster (limit switch box), which indicates the valve position and provides feedback to control systems such as PLCs, and the solenoid valve, which converts electrical signals into pneumatic actions and controls the air supply. A bridge (air distribution plate) ensures efficient air distribution, while a positioner controls the valve proportionally to an input signal, which is ideal for control applications. An air filter regulator cleans and stabilises the compressed air supply, which extends the service life of the actuator. In addition, a manual override enables manual operation of the valve in an emergency and feedback sensors allow precise monitoring of operation. These accessories are crucial for the reliability and efficiency of automated systems.