The Bray/McCannalok Series 41R high performance butterfly valve is specially designed for the sugar industry to offer rugged reliability and extremely easy maintenance in the field. Independent and internal tests have proven Bray/
McCannalok’s superior service life capability, with zero leakage shutoff through over 100,000 cycles.
This valve incorporates the same proven design features of the standard Bray/McCannalok butterfly valve, which has proven to be the leader in double offset valve design for over 30 years, in a lighter and more economical configuration specifically
designed to handle the low pressure steam of evaporators. It can be used along with the standard higher pressure Bray/ McCannalok butterfly valves and shares the same spare parts, thereby reducing the need for special or different inventory.
The Bray/McCannalok’s unique, patented design received Chemical Processing’s Vaaler Award for Best Product shortly after it was introduced.
The Bray/McCannalok valves can be easily automated with manual, pneumatic or electric actuators.
Engineered for the Sugar Industry with Exceptional Durability and Easy Maintenance
High Performance Double Offset Valve for Low Pressure Steam Applications
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Features & Benefits
- Steam Valves for Evaporators
- Evaporator Steam and Escape Valves
- 100% Bi-Directional Bubble-tight
- Large Cv
- Easy Automation
- Award-winning Design
- Lighter weight
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A. Stem Design
High-strength, one-piece stem design is standardized for interchangeability of Bray actuators.
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B. Blowout-Proof Stem
The stem retention design does not rely on actuation components to prevent stem blowout.
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C. Adjustable Stem Packing
Easy access allows simple quarter-turn field adjustments without actuator removal.
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D. Stem Seal System
PTFE packing rings with carbon fiber anti-extrusion ring provides constant compression for a positive seal around the stem. Options are available for high temperature, high cycle and firesafe applications.
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E. Stem Bearings
Top and bottom bearings securely support the stem, provide excellent corrosion resistance, and minimize deflection from high temperatures and mechanical loading forces.
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F. Disc
The disc is engineered to maximize flow and minimize resistance for optimal flow rates.
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G. Internal Over-travel Stop
Designed to minimize possible seat damage — extending the service life of the seat.
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H. Bidirectional Resilient Seat
Provides bidirectional zero-leakage sealing while isolating the energizer from line media.
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I. Full-faced Seat Retainer
Cap screws located outside sealing area are protected from corrosion while allowing simple seat replacement.
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J. Body
Extended neck allows access to stem packing adjustments and actuator mounting when valve is fully insulated.
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K. Dead-end Service
Lug and double-flanged bodies are full rated for bidirectional dead-end service.
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