sales@jandsvalve.com | 281.324.3990

 AWWA Butterfly Valve

2000-AWWA Butterfly Valve
AWWA Butterfly Valves

J&S Valve’s AWWA Butterfly Valve is a rugged and dependable, resilient seated, double offset valve designed for high performance and long life in water treatment facilities, pipelines, pump stations, an industrial setting.  Low-cost life cycle!

Double Offset Design: The centerline of the disc rotation is horizontally and vertically offset from the body seat. This design provides 360 degrees sealing and eliminates the potential for “compression set” of the rubber seat in the fully open position. Expect decades of bi-directional sealing from vacuum to rated pressure. OFFSET 1: The shaft is offset from shaft to seal allows the complete sealing contact around the entire seat. OFFSET 2: The shaft centerline is offset from the pipe centerline which provides interference free opening and closing of the valve.

Rugged and Corrosion Resistant; High strength ductile iron body coated with NSF-61 certified fusion bonded epoxy creates long-term corrosion resistance.

Weld Overlaid Body Seat ; The body seat is nickel chromium alloy, weld overlaid onto the ductile iron body and micro-finished. The weld overlay process forms a permanent metallurgical bond preventing corrosion between the seat and body.

Dry Shaft: The innovative dry shaft design protects the body and disc hub shaft bores by sealing the shafts from line media, while the backup replaceable cartridge seals prevent groundwater entry. The shaft is supported at both ends by heavy duty, self-lubricating, lead-free bronze bushings.

Field Replaceable Rubber Seat: High quality body and disc castings allow for minimal exposure of the elastomeric seal to the flow stream and are designed to withstand extreme localized fluid velocities across the seat without pullout, cold flow, or scalloping. In the unlikely event seat replacement becomes necessary, the seat retention method permits replacement using common tools with minimal down time.

Shaft: Shafts are made of stainless steel and are completely enclosed by a redundant double O-ring sealing and covered disk-shaft bearings. This guarantees optimum corrosion protection for all parts.

Bearing bushings are made of seawater resistant bronze and guaranty a long and reliable life due to self-lubricating capability. Safe operation even at changing pipeline conditions, Dry shaft operation

Rubber Seat: Automatic sealing system in the sealing ring. Operational pressure supports sealing force in both flowing directions. Due to its profile, the sealing ring is retained firmly between disk and retaining ring. No seal failure even at extreme flow velocities.

Field Replaceable Rubber Seat: High quality body and disc castings allow for minimal exposure of the elastomeric seal to the flow stream and are designed to withstand extreme localized fluid velocities across the seat without pullout, cold flow, or scalloping. In the unlikely event seat replacement becomes necessary, the seat retention method permits replacement using common tools with minimal down time.

Body Seat: Robotically welded Nickel Chromium Weld Overlaid Body Seat. Ductile Iron and Nickel Chromium have a natural metallurgical bond ensuring the body seat will not lift preventing corrosion between the seat and body.

Disc: Optimized closing of the sealing ring into the body seat. Important reduction of the shearing strains on the sealing ring. Long life due to low wear of the sealing ring.  Relief of the sealing ring in full, open position. Sealing ring can be replaced easily while valve is in-line. Shape optimized by use of computer analysis minimizing head loss. Sealing ring is not interrupted by shaft bearings.

Gear: AWWA Worm Gear with External Stops. 

Coating: NSF61 approved coating systems, ∙ Fusion Bonded Epoxy 

Compliance: NSF-61/372 Certified, AWWA C504, AWWA C516, AWWA C550,

AWWA 3" - 24" Seat on Body ECCENTRIC BUTTERFLY VALVE BROCHURE


AWWA 3" to 72" Seat on Disc ECCENTRIC BUTTERFLY VALVE BROCHURE