DeZURIK BOS-US Resilient Seated Butterfly Valves

DeZURIK BOS-US Resilient Seated Butterfly Valves are designed to handle a wide variety of liquids and gases. The uninterrupted seat BOS Valve is desirable for extended service applications such as high cycles, high pressures and high temperatures. BOS-US valves are excellent choices for continuous modulating control, dead-end service, and vacuum service to 24″ Hg. 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.

DeZURIK 2-20” BOS-US Resilient Seated Butterfly Valves feature a one-piece body; one-piece shaft and high-performance resilient seats made of EPDM or NBR. The uninterrupted seat design provides bi-directional shutoff to the full rating of the valve in 2-14″ sizes. BOS-US sizes 16-20” shut off to the full rating of the valve on the non-seat side, and to 125 psi (860 kPa) on the seat side of the valve. They are available as lugged or wafer bodies, with nickel plated ductile iron, 316 stainless steel or aluminum bronze discs. BOS-US Resilient Seated Butterfly Valve in sizes 24” (600mm) and larger feature a seat bonded to a solid backing ring.

Dezurik Bos Us 3
Dezurik Uninterrupted Seat Resilient Seated Butterfly Valves (bos Us)
Dezurik Bos Us2
Dezurik Bos Us 4
Dezurik Bos Us 3
Dezurik Uninterrupted Seat Resilient Seated Butterfly Valves (bos Us)
Dezurik Bos Us2
Dezurik Bos Us 4
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SIZE RANGE:
2-36″ (50-900mm);

TEMPERATURE RANGE:
to 250°F (121°C)

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

Bulletins
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DeZURIK BOS-US 2-20" Uninterrupted Seat Resilient Seated Butterfly Valves 46.00-1A

DeZURIK BOS-US 2-20″ Uninterrupted Seat Resilient Seated Butterfly Valves 46.00-1A

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DeZURIK BOS-US 24-36" Uninterrupted Seat Resilient Seated Butterfly Valves 46.00-1

DeZURIK BOS-US 24-36″ Uninterrupted Seat Resilient Seated Butterfly Valves 46.00-1

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Specifications
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2-20” BOS-US Uninterrupted Seat Resilient Seated Butterfly Valves Suggested Specification 46.01-1

2-20” BOS-US Uninterrupted Seat Resilient Seated Butterfly Valves Suggested Specification 46.01-1

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24-42” BOS-US Uninterrupted Seat Resilient Seated Butterfly Valves Suggested Specification 46.01-6

24-42” BOS-US Uninterrupted Seat Resilient Seated Butterfly Valves Suggested Specification 46.01-6

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White Papers
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Defining Expectations During Valve Selection

Defining Expectations During Valve Selection

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Selection & Sizing
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Alpha I Web Icon

Alpha I

Alpha-I is a control valve sizing program that performs sizing calculations for DeZURIK control valves based on your process conditions. Click the icon above to learn more and download the program.

Material Selection Guide

Material Selection Guide

DeZURIK’s Material Selection Guide program makes it quick and easy to determine which metals or elastomers are suggested as suitable for application in a specific corrosive media. Click the icon above to learn more or use the program.

Videos
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Butterfly Valves from DeZURIK APCO Hilton

Butterfly Valves from DeZURIK APCO Hilton

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CAD Drawings
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Resilient Seated Butterfly Valves

Manuals
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Valve Manuals

D10459 - DeZURIK 2-20" BOS-US BUTTERFLY VALVES

D10459 – DeZURIK 2-20″ BOS-US BUTTERFLY VALVES

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D10348 - DeZURIK 24-36" BOS-US BUTTERFLY VALVES

D10348 – DeZURIK 24-36″ BOS-US BUTTERFLY VALVES

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Actuator Manuals

D10501 - DeZURIK AM-SERIES MANUAL GEAR ACTUATOR - BUTTERFLY VALVES

D10501 – DeZURIK AM-SERIES MANUAL GEAR ACTUATOR – BUTTERFLY VALVES

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D10082 - DeZURIK G-SERIES ACTUATOR – CYLINDER OPERATED

D10082 – DeZURIK G-SERIES ACTUATOR – CYLINDER OPERATED

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D10083 - DeZURIK G-SERIES ACTUATOR – HANDWHEEL AND CHAINWHEEL OPERATED

D10083 – DeZURIK G-SERIES ACTUATOR – HANDWHEEL AND CHAINWHEEL OPERATED

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D10465 - DeZURIK G-SERIES

D10465 – DeZURIK G-SERIES

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D10475 - DeZURIK G-SERIES CYLINDER ACTUATOR

D10475 – DeZURIK G-SERIES CYLINDER ACTUATOR

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D10461 - DeZURIK TEN-POSITION LEVER ACTUATOR

D10461 – DeZURIK TEN-POSITION LEVER ACTUATOR

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D10408 - DeZURIK MANUAL GEAR ACTUATOR

D10408 – DeZURIK MANUAL GEAR ACTUATOR

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D10047 - DeZURIK PNEUMATIC CYLINDER OPERATOR FOR G-SERIES ACTUATORS

D10047 – DeZURIK PNEUMATIC CYLINDER OPERATOR FOR G-SERIES ACTUATORS

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We look forward to helping you select a valve for your application.

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