Fisher™ A11 High Performance Butterfly Valve | Reliable Throttling & Tight Shut-Off for Diverse Applications

The Fisher™ A11 High Performance Butterfly Valve is a reliable and versatile valve designed for both throttling and on/off applications . It is engineered to maintain tight shut-off over time and is suitable for a wide range of pressures and temperature conditions, including low-temperature services .

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Product Description

This valve is available in lugged or double-flanged body styles and features a pressure-assisted seal design that ensures reliable performance . Its construction allows for easy installation, as the valve body self-centers on pipeline flange bolts, enabling quick and accurate alignment . With all parts being interchangeable—including the shaft and disc—maintenance is simplified, helping to reduce long-term costs .

Key Features & Benefits:

Excellent Shut-Off: Achieves up to Class VI shut-off (per FCI 70-2) .
Robust Construction: Available in various materials like Carbon Steel and Stainless Steel, with trim and bolting materials suitable for sour liquid and gas applications .
Operational Efficiency: The design requires the same torque to open and close the valve, regardless of the direction of the applied pressure .
Installation Flexibility: Offers multiple process connection types, including flanged, double-flanged, lugged, and wafer-style .
Global Compliance: Meets major international standards and certifications, including PED, CRN, NACE, ATEX, and CUTR .

Product Attributes

For a quick overview, here are the key specifications of the Fisher A11 Valve.

Feature	Description
Product Line	Fisher™ A11
Valve Type	High Performance Butterfly Valve
Primary Applications	General Service, Throttling, On/Off Control
Flow Characteristic	Linear
Body Materials	Carbon Steel, Stainless Steel, Alloys
Service Temperature	Standard Temperature, High Temperature, Low Temperature
Pressure Rating	ASME
End Connection Types	Flanged, Single-Flanged, Double-Flanged, Lugged, Wafer
Shutoff Class	Class IV (FCI 70-2), Class V (FCI 70-2), Class VI (FCI 70-2)
Actuator Power Sources	Electric, Hydraulic, Pneumatic, Electro-Hydraulic
Certifications	PED, CRN, Fugitive Emissions, NACE, ATEX, CUTR, Fire Safety

Specifications & Model Summary

The Fisher™ A11 Butterfly Valve is available in a comprehensive range of sizes to meet various application demands .

Valve Size (NPS)
NPS 3
NPS 4
NPS 6
NPS 8
NPS 10
NPS 12
NPS 14
NPS 16
NPS 18
NPS 20
NPS 24
NPS 30
NPS 36

Note: Custom inlet/outlet configurations are available, with sizes up to NPS 72 . For more detailed technical specifications or custom options, please contact our sales team.

If you have any questions or are unsure about the correct Fisher™ A11 model for your application, please do not hesitate to contact the Kateteco sales team. Our technical experts are ready to assist you in selecting the perfect valve for your needs.

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