Piston Forged Check Valve Class 150/300 - R150/R300 | ICP Valves Forged Check Valve Class 150/300 - R150/R300 | ICP Valves The Forged Check Valve Class 150/300 - R150/R300 by ICP Valves is a high-quality, uni-directional piston check valve designed for reliable performance in various industrial applications. Available in Class 150 or Class 300, these valves feature a reduced bore and are equipped with Raised Face flanges according to ASME B16.5 standards. They are offered in... View Flanged 150 lbs 300 lbs ANSI ASTM A105 ASTM A182 F316