The Series F44 is a Fire-safe variant of the renowned Worcester three-piece range of ball valves. It has been fire-tested in accordance with BS 6755 Part 2 and features graphite gland and body seals. 8 high tensile body connector screws for strength in fire conditions, and an integral location spigot machined on the body connector to ensure correct alignment of the fire lip to the ball in a fire. Sizes available: 8-50mmSpecification: In accordance with BS 6755 Part 2