The ASCO 8220G411 is a pilot-operated solenoid valve designed for controlling the flow of hot water and steam. It features a diaphragm valve design with a normally closed starting configuration and two flow paths (2-way). For automated and remote control of steam and hot water flow. It operates within ambient temperatures ranging from 14°F to 140°F and handles fluid temperatures up to 210°F for hot water and 353°F for steam. Key Features: - Valve Design: Diaphragm with 2-Way, 2-Position operation - Operation Type: Pilot Operated - Starting Configuration: Normally Closed - Body Material: Brass construction - Seal Material: EPDM and PTFE - Nominal Pipe Size: 1 in with NPT threaded inlet and outlet connections (NPTF) - Orifice Diameter: 1 in - Flow Coefficient (Cv): 11.5 - Maximum Operating Pressure Differential: 150 psi (Hot Water), 125 psi (Steam), 210 psi (Light Oil), 150 psi (Air/Inert Gas) - Minimum Operating Pressure Differential: 5 psi (Hot Water, Steam) - Electrical: 120V AC, 10.1 W wattage, coil included with Class H insulation - Electrical Connections: 1/2 in conduit with 18 in leads - Coil Enclosure: Watertight, without junction box - Environmental Rating: Indoor, Outdoor, Hazardous, Washdown - Dimensions: Overall length 3-3/4 in, height 5-3/16 in, width 3-9/32 in - Includes Seals - Standards: CSA and UL Listed
