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COVNA Pneumatic Actuated Butterfly Valve

We offer all types of pneumatic actuated butterfly valves and pneumatic accessories to help your project automated

HK59D Cast Iron Pneumatic Wafer Butterfly Valve

● Nominal size: DN50 to DN600 (2in to 24in)

● Connection: Wafer

● Connection standard options: ANSI, JIS, DIN, GB

● Material options: Cast iron

● Sealing options: NBR, EPDM, VITON, PTFE

● Working pressure: 145psi, 232psi, Class 150, 10K

● Working temperature: 14℉ to 356℉

● Actuator options: Single acting(Spring return) type or Double acting type

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HK59DS Stainless Steel Pneumatic Wafer Butterfly Valve

● Nominal size: DN50 to DN600 (2in to 24in)

● Connection: Wafer

● Connection standard options: ANSI, JIS, DIN, GB

● Material options: Stainless steel 304/316/316L

● Sealing options: NBR, EPDM, VITON, PTFE

● Working pressure: 145psi, 232psi, Class 150, 10K

● Working temperature: 14℉ to 356℉

● Actuator options: Single acting(Spring return) type or Double acting type

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HK59DM Cast Iron Pneumatic Lugged Butterfly Valve

● Nominal size: DN50 to DN600 (2in to 24in)

● Connection: Lugged

● Connection standard options: ANSI, JIS, DIN, GB

● Material options: Cast iron

● Sealing options: NBR, EPDM, VITON, PTFE

● Working pressure: 145psi, 232psi, Class 150, 10K

● Working temperature: 14℉ to 356℉

● Actuator options: Single acting(Spring return) type or Double acting type

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HK59DM-S Stainless Steel Pneumatic Lugged Butterfly Valve

● Nominal size: DN50 to DN600 (2in to 24in)

● Connection: Lugged

● Connection standard options: ANSI, JIS, DIN, GB

● Material options: Stainless steel 304/316/316L

● Sealing options: NBR, EPDM, VITON, PTFE

● Working pressure: 145psi, 232psi, Class 150, 10K

● Working temperature: 14℉ to 356℉

● Actuator options: Single acting(Spring return) type or Double acting type

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HK59DW Pneumatic Food Safe Butterfly Valve

● Nominal size: 19mm to 102mm

● Connection options: Tri-clamp

● Material options: Stainless steel 304/316/316L

● Sealing options: PTFE, PPL

● Working pressure: 145psi, 232psi

● Working temperature: 14℉ to 356℉

● Actuator options: Single acting(Spring return) type or Double acting type

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HK59DW Pneumatic Food Safe Butterfly Valve

● Nominal size: 19mm to 102mm

● Connection options: Threaded

● Material options: Stainless steel 304/316/316L

● Sealing options: PTFE, PPL

● Working pressure: 145psi, 232psi

● Working temperature: 14℉ to 356℉

● Actuator options: Single acting(Spring return) type or Double acting type

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HK59DW Pneumatic Food Safe Butterfly Valve

● Nominal size: 19mm to 102mm

● Connection options: Weld

● Material options: Stainless steel 304/316/316L

● Sealing options: PTFE, PPL

● Working pressure: 145psi, 232psi

● Working temperature: 14℉ to 356℉

● Actuator options: Single acting(Spring return) type or Double acting type

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HK59DP Pneumatic UPVC Butterfly Valve

● Nominal size: DN50 to DN300 (2in to 12in)

● Connection: Flange

● Material options: UPVC/CPVC/PPH

● Sealing options: EPDM

● Working pressure: 145psi, 232psi

● Working temperature: 14℉ to 176℉

● Actuator options: Single acting(Spring return) type or Double acting type

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HK59DF Cast Iron Pneumatic Flanged Butterfly Valve

● Nominal size: DN50 to DN600 (2in to 24in)

● Connection: Flange

● Connection standard options: ANSI, JIS, DIN, GB

● Material options: Cast iron

● Sealing options: NBR, EPDM, VITON, PTFE

● Working pressure: 145psi, 232psi, Class 150, Class 300

● Working temperature: 14℉ to 356℉

● Actuator options: Single acting(Spring return) type or Double acting type

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HK59DF Stainless Steel Pneumatic Flanged Butterfly Valve

● Nominal size: DN50 to DN600 (2in to 24in)

● Connection: Flange

● Connection standard options: ANSI, JIS, DIN, GB

● Material options: Stainless steel 304/316/316L

● Sealing options: NBR, EPDM, VITON, PTFE

● Working pressure: 145psi, 232psi, Class 150, Class 300

● Working temperature: 14℉ to 356℉

● Actuator options: Single acting(Spring return) type or Double acting type

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HK59DG Wafer Pneumatic Hard Seal Triple Offset Butterfly Valve

● Nominal size: DN50 to DN600 (2in to 24in)

● Connection: Wafer

● Connection standard options: ANSI, JIS, DIN, GB

● Material options: Stainless steel 304/316/316L

● Sealing options: Metal

● Max. working pressure: 580psi, Class 300, 20K

● Working temperature: 14℉ to 752℉

● Actuator options: Single acting(Spring return) type or Double acting type

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HK59DG Flanged Pneumatic Hard Seal Triple Offset Butterfly Valve

● Nominal size: DN50 to DN600 (2in to 24in)

● Connection: Flange (ANSI, JIS, DIN, GB)

● Connection standard options: ANSI, JIS, DIN, GB

● Material options: Stainless steel 304/316/316L

● Sealing options: Metal

● Max. working pressure: 580psi, Class 300, 20K

● Working temperature: 14℉ to 752℉

● Actuator options: Single acting(Spring return) type or Double acting type

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HK59DC Pneumatic Fluorine lining Butterfly Valve

● Nominal size: DN50 to DN600 (2in to 24in)

● Connection: Wafer

● Connection standard options: ANSI, JIS, DIN, GB

● Material options: Carbon steel, stainless steel 304/316/316L

● Sealing and Disc material: Fluorine lining

● Working pressure: 145psi, 232psi, Class 150, 10K

● Working temperature: 14℉ to 356℉

● Actuator options: Single acting(Spring return) type or Double acting type

● Features: Suitable for acid, alkali, wastewater, etc

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As an actuator and valve manufacturer, COVNA is committed to offer quality pneumatic actuator for you and help your automation project runs well

ATE Series Pneumatic Actuator

Spring return type(single-acting type) quarter-turn pneumatic actuator. Torque range up to 2792Nm

Auto return when air interrupted

AT Series Pneumatic Actuator

Double Acting type 90 degrees rotations pneumatic actuator. Torque range up to 4678Nm

AW Series Pneumatic Actuator

For larger size valve or valve which requires higher torque. High torque range up to 30860Nm

Select The Right Actuator For Your Project

COVNA also manufactures all kinds of pneumatic accessories for you to let your automation control process easier

Positioner

Switch Box

Gearbox

F.R.L

Pneumatic Solenoid Valve

Order Your Whole Set Pneumatically Actuated Butterfly Valve

Why Choose COVNA Valves?

COVNA has 20+ years of experience in the valve industry and we had supply valves to more than 50+ countries and 2,000+ projects with actuation solutions.

What we can do for you?

● Selection guide to help you to choose the right valve

● Offering 3D drawings and datasheets to help you to design systems and install the valve

● Online technical support to help you to resolve the valve issue

● Custom valve service is available

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For Project Designer Or Contractor

● A one-stop valve solution to fulfill your valve needs. Saving time and saving cost

● Competitive price to help you to win the project

● Sufficient stock and fast shipping. To help you to start the project without delay

● Custom valve service to meet your project valve needs

For Distributors

● Market sharing to help you to know how to sell the goods and how to gain more market share

● Competitive price to help you to earn more benefits

● Sufficient stock and fast shipping to meet your inventory needs

● Product training

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What Is Pneumatic Butterfly Valve?

  • Pneumatic butterfly valve is composed of pneumatic actuator and butterfly valve. Pneumatic butterfly valve is a pneumatic actuator valve that uses a circular butterfly plate that rotates with the stem to achieve activation. It is mainly used as a cut-off valve. It can also be designed to have the function of adjustment or segment and adjustment.
  • According to the type of actuator, it can be divided into: Single-acting pneumatic butterfly valve and Double-acting pneumatic butterfly valve
  • According to the material of the butterfly valve, it can be divided into: Stainless steel pneumatic butterfly valve, Plastic pneumatic butterfly valve and Cast iron pneumatic butterfly valve。
  • According to the connection mode of the butterfly valve, it can be divided into: Wafer pneumatic butterfly valve, Flange pneumatic butterfly valve, Tri-clamp pneumatic butterfly valve and Lug pneumatic butterfly valve
  • According to the seals of the butterfly valve, it can be divided into: Soft sealing pneumatic butterfly valve and Hard sealing pneumatic butterfly valve
  • According to the structure of the butterfly valve, it can be divided into: Single eccentric pneumatic butterfly valve, Double eccentric pneumatic butterfly valve and Triple eccentric pneumatic butterfly valve
  • According to the function of the butterfly valve, it can be divided into: Normal temperature and pressure pneumatic butterfly valve, High temperature pneumatic butterfly valve and Sanitary pneumatic butterfly valve
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Advantages and Disadvantages of Pneumatic Butterfly Valve

Advantages Of Pneumatic Butterfly Valve:

  • Small and light, easy to disassemble and repair, and can be installed in any position
  • The structure is simple and compact, the operating torque is small, and the 90° turn to open quickly
  • The flow characteristics tend to be straight, and the regulation performance is good
  • The seal can be replaced, and the seal is reliable to achieve two-way sealing
  • 1 million cycle times

Disadvantages Of Pneumatic Butterfly Valve:

  • Need to match the air source equipment, and have requirements for the air supply pressure

Selection Guide of Pneumatic Butterfly Valve

  • Confirm what types of butterfly valve you need like connection type, valve material, seal material, size, etc
  • Confirm what pneumatic actuator you need. Such as single-acting actuator or double acting actuator
  • Confirm the air supply pressure
  • Confirm the medium, working temperature, working pressure, etc
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