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DeZURIK BOS-US Resilient Seated Butterfly Valves – Reliable Seal

In thousands of installations worldwide, DeZURIK BOS-US Valves have a proven record of long-term reliability, throttling control, value-added design features, and unmatched economy.

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DeZURIK BOS-US Resilient Seated Butterfly Valves – Reliable Seal Specifications

Size Range: 2-36" (50-900mm); up to 42" (1050mm) on application
Temperature: to 250°F (121°C)
Pressure Rating: for 24-36" (600-900mm)175 psi (1210 kPa)
Shutoff Capability: Bubble-Tight, full rated bi-directional shutoff; lugged valves provide dead end service to full valve rating.
Body Styles: Wafer or lugged
Body Material: 2-20” (50-500mm) ductile iron; 24-42” (600-900mm) cast iron
Actuator type: Lever, handwheel, chainwheel, square nut, PowerRac double-acting and spring- return cylinder, G-Series cylinder

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Features & Benefits

BOS-US Uninterrupted Seat Resilient Seated Butterfly Valves are used to handle a wide variety of liquids and gases, including water, air, petroleum, and noncorrosive chemicals. BOS-US Valves are extensively used in hot-process applications, in mining operations, in paper mills, and in environments requiring up to 28"-Hg (710mm-Hg) of vacuum.
In thousands of installations worldwide, DeZURIK BOS-US Valves have a proven record of long-term reliability, throttling control, value-added design features and unmatched economy.
BOS-US valves feature an uninterrupted seat design, one-piece body, solid one-piece shaft and a high performance resilient seat. Sizes 2-20” (50-500mm) feature seat bonded to the body while sizes 24” (600mm) and larger feature a seat bonded to a solid backing ring.