Overview Two way on-off line voltage valves consist of an actuator motor and valve assembly for controlling the flow of hot or chilled water. Features Manual opener (on all models, except straight-through, normally open valves) for valve operation on power failure; valve returns to automatic position when power is restored. All models may be installed without disassembling the valve. Compact construction for easy installation. Complete powerhead may be removed or replaced without breaking plumbing line connections or draining the system. Motor may be replaced without removing the valve body or draining the system. Suitable for heating and cooling applications. Product Specifications ApplicationHydronic Control Dimensions (in.)4 in. high x 4 11/16 in. wide x 2 3/8 in. deep Dimensions (mm)102 mm high x 118 mm wide x 60 mm deep CommentsUse this valve in closed loop hydronic systems that do not contain dissolved oxygen in system water, such as fresh water from frequent source of makeup water. Valve designed for cycling (not constantly powered on) applications. Frequency60 Hz Approvals, Underwriters Laboratories Inc.UL Listed: File MH11826 Operating Humidity Range (% RH)5 to 95% relative humidity, non-condensing. Voltage120 Vac; Power Consumption--9.6 VA TimingNominal Open--15 sec Ambient Temperature Range (F)125 F Maximum Ambient Temperature Range (C)52 C Maximum Connection TypeFlare Body PatternTwo-way, Straight-through Pipe Size (inch)1/2 in. Pipe Size (DN)DN15 Current Draw0.08A Fluid Temperature (C)5 C to 93 C Fluid Temperature (F)40 F to 200 F Maximum Differential Pressure Ratings (Close-off) (psi)20 psi Maximum Differential Pressure Ratings (Close-off) (kPa)138 kPa Electrical Connections (in.)18 in. leads Electrical Connections (mm)457 mm leads Capacity (Cv)3.5 Cv Capacity (Kv)3 Kv Valve ActionSpring return to close Valve TypeZone Valve Materials (Body)Brass Materials (Seat)Brass Materials (Stem)Stainless Steel ActuationTwo position De-energized PositionNormally Closed Static Pressure Rating (psi)125 psi Static Pressure Rating (kPa)862 kPa Materials (Plug/Ball/Disc)Buna-N (NBR) Rubber Ball Materials (Packing)EPDM rubber Manual OpenerYes