COVNA, as a pneumatic actuated butterfly valve manufacturer, we specialized in manufacturing air operated butterfly valve since 2000. COVNA’s pneumatically controlled butterfly valve are used to control the flow of a media remotely, quickly and safely.

There are two type actuation modes: Spring return pneumatic actuator also called single acting pneumatic actuator: Air to open or Air to off. Double acting pneumatic actuator: Air to open and air to close

Pneumatic butterfly valve is a kind of butterfly valve with simple structure, superior performance, high temperature resistance and corrosion resistance.

Features: 

• Compact structure, long service life, good sealing performance, easy maintenance, quick detachable and installation
• Pneumatic and electric devices can be configured according to user requirements to meet the needs of remote control and program control
• Small operation torque, quickly opened 90-degree rotation, good sealing performance
• Stable performance, Widely used in various industries for both on-off and regulating service
• Can be equipped with positioner, limit switch, hand wheel, solenoid valve etc.
• High Torque Up To 4678Nm, high flow

In this article, we will bring you different type electric butterfly valves for your selection:

1. Cast Iron Wafer Type Pneumatic Operated Butterfly Valve>>>GO TO THIS PAGE

Size Range: 2″ to 16″ Pressure Range: 1.0~1.6MPa Material: Cast Iron Seal: PTFE, PPL, NBR seat Media: Water, oil, Gas, Liquid, steam, powder, anti-corrosive base

Dimensions:

2. Cast Iron Flanged Pneumatic Actuator Butterfly Valve>>>GO TO THIS PAGE

Size Range: 2″ to 20″ Pressure Range: 1.0~6.4MPa Material: Cast Iron Seal: NBR, EPDM, PTFE etc Media: Water, oil, Gas, Liquid, steam, powder, anti-corrosive base

Dimensions:

3. Kitz Air Operated Butterfly Valve>>>GO TO THIS PAGE

Size Range: 1.5″ to 8″ Pressure Range: 1.0~1.6MPa Material:  Aluminum Alloy Seal: PTFE, PPL, NBR Media: Water, oil, Gas, Liquid, steam, powder, anti-corrosive base

Dimensions:

4. Lug type Pneumatic Butterfly Valve>>>GO TO THIS PAGE

Size Range: 2″ to 12″ Pressure Range: 1.0~6.4MPa Material: Cast Iron, Stainless steel Seal: PTFE, PPL, NBR Media: Water, oil, Gas, Liquid, steam, powder, anti-corrosive base

Dimensions: 

5. PVC Pneumatic Butterfly Valve>>>GO TO THIS PAGE

Size Range: 2″ to 24″ Pressure Range: 1.0MPa Material: Cast Iron, Stainless steel Seal: PVC, CPVC, UPVC, PVDF Media: Water, Oil, Air, Gas and other medium

Dimensions: 

6. Stainless Steel Pneumatic Actuated Butterfly Valve>>>GO TO THIS PAGE>>>GO TO THIS PAGE

Size Range: 2″ to 24″ Pressure Range: 1.0MPa Material: Stainless Steel Seal: PTFE, PPL Media: Water, oil, Gas, Liquid, steam, powder, anti-corrosive base

Dimensions:

7. Tri-clamp Sanitary Pneumatic Butterfly Valve>>>GO TO THIS PAGE

Size Range: 2″ to 16″ Pressure Range: 1.6MPa Material: Stainless Steel 304/316 Seal: PTFE, PPL Media: Water, oil, Gas, Liquid, steam, powder, anti-corrosive base

Dimensions:

8. Pneumatic Vacuum Butterfly Valve>>>GO TO THIS PAGE

Size Range: 2″ to 24″ Pressure Range: 0.4MPa~0.7MPa Material: Stainless Steel 304/316 Seal: PTFE, PPL Media: Pure air non corrossive gases

Dimensions:

9. Tri-eccentric Pneumatic Butterfly Valve>>>GO TO THIS PAGE

Three eccentric butterfly valve is widely used in metallurgy, electric power, petrochemical industry, water supply and drainage, municipal construction and other industrial pipelines with medium temperature ≤ 425 ℃, for regulating flow and breaking fluid.

	Size Range: 2″ to 18″ Pressure Range: 1.0 to 2.5MPa Material: Stainless Steel 304/316 Seal: Stainless Steel Media: Water, oil, Gas, Liquid, steam, powder, anti-corrosive base
	Size Range: 2″ to 18″ Pressure Range: 1.0 to 2.5MPa Material: Stainless Steel 304/316 Seal: Stainless Steel Media: PTFE

Dimensions:

10. Fluorine Flanged Pneumatic Butterfly Valve >>> GO TO THIS PAGE

Size Range: 2″ to 18″ Pressure Range: 1.0 to 2.5MPa Material: Stainless Steel 304/316 Seal: Stainless Steel Media: acid、alkali 、salt and oxidant、reductant、organic solvent and other media.

Dimensions:

11. HK59-D-L Double Flange Pneumatic Cement Powder Butterfly Valve>>>GO TO THIS PAGE

Size Range: 4”~14” Pressure Range: 1.0 to 1.6MPa Material: Aluminum Alloy Seal: Rubber Media: Water, oil, Gas, Liquid, steam, powder, anti-corrosive base

Dimensions:

12. HK59-D-V Ductile Iron Wafer Flanged Pneumatic Ventilation Butterfly Valve>>>GO TO THIS PAGE

Size Range: 4”~48” Pressure Range: 0.05 to 0.6MPa Material: Cast Iron Seal: PTFE, PPL, NBR Media: Water, oil, Gas, Liquid, steam, powder, anti-corrosive base

13. PTFE Sealed Pneumatic Actuator Fluorine Lined Butterfly Valve>>>GO TO THIS PAGE

Size Range: 2”~16” Pressure Range: 1.0 to 1.6MPa Material: Cast Iron Seal: PTFE Media: Water, oil, Gas, Liquid, steam, powder, anti-corrosive base

Dimensions:

Pneumatic Butterfly Valve Manufacturer

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