Overview
Two-way on-off low voltage valves consist of an actuator and valve assembly for controlling the flow of hot 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.
- Actuator motor may be replaced without removing the valve body or draining the system.
Product Specifications
- Application
- Hydronic 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
- Includes
- Less Adapters
- Comments
- Order adapters separately - 272704A (1/2 in. sweat), 272704B (3/4 in. sweat). Valve designed for cycling (not constantly powered on) applications.
- Frequency
- 50 Hz; 60 Hz
- Approvals, Canadian Standards Association
- CSA Certified: File 1322
- Operating Humidity Range (% RH)
- 5 to 95% relative humidity, non-condensing.
- Voltage
- 24 Vac; Power Consumption--7.7 VA
- Ambient Temperature Range (C)
- 52 C Maximum
- Ambient Temperature Range (F)
- 125 F Maximum
- Connection Type
- Flare
- Electrical Connections (in.)
- 18 in. leads
- Electrical Connections (mm)
- 457 mm leads
- Timing
- Nominal Open--15 sec
- Body Pattern
- Two-way, Straight-through
- Pipe Size (inch)
- 3/8 in.
- Pipe Size (DN)
- DN10
- Current Draw
- 0.32A
- Fluid Temperature (C)
- 10 C to 93 C
- Fluid Temperature (F)
- 50 F to 200 F
- Maximum Differential Pressure Ratings (Close-off) (psi)
- 20 psi
- Maximum Differential Pressure Ratings (Close-off) (kPa)
- 138 kPa
- Capacity (Cv)
- 3.5 Cv
- Capacity (Kv)
- 3 Kv
- Valve Action
- Spring return to close
- Valve Type
- Zone Valve
- Materials (Body)
- Brass
- Materials (Seat)
- Brass
- Materials (Stem)
- Stainless Steel
- Actuation
- Two position
- De-energized Position
- Normally 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 Opener
- Yes
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