Superior performance, durable construction, valve body forged brass. Actuator with all metal gears inside, corrosion-resistant stainless steel housing. Controlling water flow in hydronic heating or cooling systems.</p> Power supply 24V 60Hz, with end switch for optional signal feedback, Normally closed (NC), 2-way 3/4", soldering/sweat connection, lead wire 18".</p> Perfect replacement for any of the following existing zone valve installations:<br> - Honeywell: V8043, V8044, V2031A,B, V8031A,B, V8343A,B <br> - Erie/Schneider: VT2312 VT2313 VT2315 VT2317 <br> - Barber Colman: VA1403 <br> - Bell & Gossett: TEV 3/4, MI, 109020 & 109031 <br> - Flair: VJ1C2, VJ2C2, V2ACA, VJ1B2, VJ1E2, VJ2D2, VJ020 <br> - Taco: 556, 557, 571, 548A, 545 <br> - Erie: 0765, 0767, 635B8-18A-8, 635B307-18A1, 635B307-18A0, 601, 607, 612, 621, 627 and 647<br> - Superior: UA182 <br> - White Rodgers: 1361-102, 13A01-102, 13A02-102, 13A02-102, 13A03-1, 12, 1311-103, 1361-103<br> - Detroit: ZV200, ZV210<br>