BOS-CL Resilient-Seated Butterfly Valves are designed to handle a wide variety of liquids and gases.
BOS-CL valves feature an on-center disc; one-piece body; high-performance resilient seat bonded to a solid backing ring, three heavy duty bearings, and a blow-out proof shaft to the full valve rating; dead end service with downstream flange attached.
BOS-CL valves have bi-directional bubble-tight shutoff to the full valve rating; dead end service with downstream flange attached.
- Lever, Handwheel, Chainwheel, PowerRac® Double-Acting & Spring-Return Cylinder, Compak Double-Acting Cylinder, G-Series Cylinder
- Ductile Iron
- Lugged 2- 24” (50-600 mm), Flanged 26-48” (650-1200 mm)
- Ductile Iron Nylon-Coated (DINY) or 316 Stainless Steel (S2) Discs: 2-12” (50-300 mm) = 175 psi (1210 kPa), 14-48” (350-1200 mm) = 150 psi (1030 kPa), Aluminum Bronze (ALB) Discs = 150 psi (1030 kPa)
- 2-48” (50-1200 mm)
- AcryloNitrile-Butadiene (NBR) -20° to 180° F (-29° to 82° C),Ethylene Propylene & A Diene (EPDM) -20° to 250° F (-29° to 121° C)