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Resilient Butterfly Valves

Dependable shutoff, tight sealing, tough service
& reliable long-life operation.

 

050/051 Series

200 PSI | Ductile Iron
General
Service

Cartridge Seat
200 PSI
1/2″ – 48″+

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650/651 Series

200 PSI / Stainless Steel
Washdown &
Corrosive Media

Cartridge Seat
200 PSI
2″ – 24″+

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250/251 Series

250 PSI | Ductile Iron
Data Center Chilled Water,
Higher Pressure

Molded Seat
250 PSI
2″ – 24″+

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BKKE/BKKB Series

200 PSI | Aluminum Bronze
Marine
& Seawater

Cartridge Seat
200 PSI
2″ – 24″+

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Resilient Butterfly Valve Case Studies

6″ Delta T Ductile Iron Lug Butterfly Valve Tee Assembly w/ MT Series Pneumatic Actuator, Linkage, Limit Switch, & Solenoid Valve 050/051 SeriesCase StudiesLimit SwitchesMT SeriesSolenoid ValvesTee Assembly
September 30, 2026

6″ Delta T Ductile Iron Lug Butterfly Valve Tee Assembly w/ MT Series Pneumatic Actuator, Linkage, Limit Switch, & Solenoid Valve

Three-Way Flow Control Without the Multiport Ball Valve For larger-diameter piping systems, achieving three-way flow control with a multiport ball valve can quickly become an expensive solution. For this application, Max-Air provided an alternative: a ductile iron tee fitted with two 6" Delta T 051…
Max-Air Technology
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Chainwheel-Operated Butterfly Valve w/ Add-On Lockout Bucket — Data Center Chilled Water Line 050/051 Series250/251 Series650/651 SeriesCase StudiesGO Series
July 1, 2026

Chainwheel-Operated Butterfly Valve w/ Add-On Lockout Bucket — Data Center Chilled Water Line

A colocation data center needed a reliable way to isolate an 8" chilled water line feeding a critical redundant chiller during maintenance. The existing manual valve had no lockout provision and was mounted in a hard-to-reach spot, making safe LOTO procedures difficult. Max-Air supplied a…
Max-Air Technology
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Dedicated Truck Shipment of Resilient Seated Lug Valves w/ Declutchable Overrides & Hand Pump Overrides 050/051 SeriesCase StudiesGOW SeriesHD SeriesMT Series
July 28, 2025

Dedicated Truck Shipment of Resilient Seated Lug Valves w/ Declutchable Overrides & Hand Pump Overrides

This dedicated truck shipment of Resilient Butterfly Valves is full of large lug valves w/ pneumatic actuation & manual override options. The Rack & Pinion assemblies include our GOW Series Declutchable Gear Operators and the Scotch Yokes include Hydraulic Hand Pump Overrides. #thebestwaytoautomateyourprocess
Max-Air Technology
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Pneumatically Operated Resilient Seated Butterfly Valve w/ Open/Close Feedback & Declutchable Gear Override 050/051 SeriesCase StudiesGOW SeriesLimit SwitchesMT SeriesSolenoid Valves
October 23, 2024

Pneumatically Operated Resilient Seated Butterfly Valve w/ Open/Close Feedback & Declutchable Gear Override

These Delta T Resilient Butterfly Valves in Ductile Iron Wafer Body w/ Stainless Steel Disc & EPDM Seat are being operated by our MT Series Rack & Pinion Actuators. Each assembly has a GOW Series Declutchable Gear Operator for Manual Override. The Solenoid diverts air,…
Max-Air Technology
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