We are offering dual check valve. Technical specifications :
design : disc type – dual plate check valve.seat material : metal seated, soft seated.body material : cast iron, carbon steel (astm a 216 gr. Wcb, forged carbon steel (astm a 105), cf8 (ss 304), cf8m (ss 316), cf3m (ss 316l), ss 202, alloy steel & others.end connection : fitted between two flanges.pressure rating class : asa 125, 150, 300size range : 50mm to 1000mm.