The ASCO™ Series 290 Piston Solenoid Valves are pressure-operated, direct-acting angle-body valves, designed for demanding applications involving aggressive fluids, air, steam, fuel oil, and hot water. Available in durable bronze or stainless steel, they offer 2-way configurations (Normally Closed or Open) and accommodate pipe sizes from 3/8” to 2 1/2” with NPTF ports. Supporting flow rates from 2.0 Cv to over 14.0 Cv, these valves are suited for both indoor and outdoor environments and meet RoHS, Type 4, and Type 4X standards.