The Bray Series 770 bidirectional o-ported knife gate valve is designed for severe service applications. The 770’s o-ported gate is in constant contact with the seats, minimizing seat stress and ensuring maximum sealing performance.
The durable ductile iron body is offered in a compact wafer style. When fully open, the valve is full bore, offering no resistance to line media.
Specifications
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Features & Benefits
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A. Topworks
Designed for easy, quick conversion between manual and pneumatic actuation. Featuring a lubricant injection port for continuous, smooth operation with minimal maintenance.*
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B. Packing
Multi-layer square packing provides exceptional gland sealing.
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C. Seat
Replaceable steel reinforced, elastomer seat ensures bi-directional zero leakage shutoff.
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D. Seat Contact
Seats are in constant contact with gate throughout the entire stroke of the valve.
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E. Gate
Deflection resistant gate design ensures consistent alignment for industry leading durability.
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F. O-Port
The inherent design of the o-ported slide gate provides 360˚ scale-breaking.
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G. Body
Compact wafer body allows for easy installation and is drilled and tapped to ASME CL150 flange patterns as standard. Other drilling options available upon request.
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H. Tapped Flush Port
Non-discharging body design includes tapped flush ports as standard, allowing for safe discharge of media and easy flush water connection.