Bodies and covers are high quality cast and afterwards precisely machined, directing the attention to prevent stress concentration. The design characteristic of check valves is the unobstructed passageway, with a full-opening when required. • Sizes: 2” to 36” • Types: Bolted Bonnet & Pressure seal • Materials :Body: Carbon steel, Stainless steel, Low temperature carbon steel, Duplex,Special Alloys,… Other materials under request TRIM: 316, 410, MONEL,… Other materials under request