Derval is a leading manufacturer of valves for the Oil, Gas, and Power Generation industries, offering a wide range of Gate Valves, Globe Valves, Check Valves, Dual Plate & Strainers in forged and cast steel materials. Our product range spans from 1/2” to 48” valves, with pressure ratings from ASME Class 150Lbs. to 2500Lbs. and UNI EN/DIN PN 6 to PN 100. The high quality and variety of materials used allow us to meet the needs of the Chemical, Petrochemical, and Power Plants, as well as Oil & Gas, Offshore & Onshore, Refining, Shipbuilding, Water Treatment, and Energy Generation sectors.