SVF-Flow-Controls_Manual-with-OSHA-ClampThe SVF Flow Controls Series B41 Flanged Ball Valves are high performance, full ported valves certified to API-607 fire safe design with Anti-Static stem. The B41 is an ANSI Class 150#, available in Carbon Steel or Stainless Steel in sizes ranging from 1/2 inch to 8 inches. All Series B41 valves feature a locking mechanism that can be fitted with an OSHA Clamp for Lock-Out/Tag-Out service. Other features include: an optional cast stem extension for installation in insulated piping systems; live-loaded stem packing ensures seal-tight pressure containment even under thermal cycling; built-In ISO 5211 mounting pad for direct mounting of actuators; and a selection of seats and seals for a wide range of industrial applications.