We are offering monoflange valves available with os & y bolted bonnet, integral screwed bonnet and bolted bonnet design. • ansi b16.5 flanged inlet connections 12" to 2" sizes. • class 150 rated to class 2500 rated. • api flanged inlet connections also available. • 12" - 14 npt (female) standard outlet. • 14" x 18 npt (female) standard vent. • standard material of construction: ss316 ss316l, carbon steel and duplex. • fire safe designed to meet bs 6755 part 2api 607 are available on request.