DeZURIK On-Center Resilient Seated Butterfly Valves

(BOS-CL)

DeZURIK BOS-CL On-Center Resilient Seated Butterfly Valves are built for reliable shutoff and throttling of liquids and gases. They feature a one-piece body, bonded seat with solid backing ring, and blow-out proof shaft for long service life. Available in ductile iron bodies with multiple disc options, they ensure bubble-tight, bi-directional shutoff and support dead-end service.

Technical Specifications

Size Range:

2-24″ (50-600mm)

Temperature Range:

Acrylonitrile-Butadiene (NBR) -20 to 180°F (-29 to 82°C)
Ethylene Propylene and a Diene (EPDM) -20 to 250°F (-29 to 121°C)

Pressure Rating:

Ductile Iron Nylon Coated (DINY) or 316 Stainless Steel (S2) Discs:
2-12” (50-300mm) = 175 psi (1210 kPa);
14-24” (350-600mm) = 150 psi (1030 kPa)
Aluminum Bronze (ALB) Discs = 150 psi (1030 kPa)

Body Styles:

Lugged 2-24″ (50-600mm)

Body Material:

Ductile Iron

Actuator Type:

Lever, handwheel, chainwheel, PowerRac double-acting and spring-return cylinder, Compak double-acting cylinder, G-Series cylinder

Downloads

DeZURIK has made various downloads available for the DeZURIK On-Center Resilient Seated Butterfly Valves, including manuals. These can be downloaded via the DeZURIK website.

View available downloads