This 120v 1/2 inch NPT 2 Way Normally Closed (NC) Zone Water Valve features a Cv of 3.5, designed for efficient flow control in water systems. Its durable construction ensures long-lasting performance, while the normally closed design allows for precise regulation of water flow in heating and cooling applications. Ideal for both residential and commercial use, this valve meets industry standards for safety and reliability, making it a vital component in HVAC systems.
Residential Comfort/Combustion : Hydronic Heating : Zone Valves and Motors : V4043A,B,C : V4043A1689/U
NPT N.C. Zone Valve
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
- Application
- Hydronic Control
- Dimensions (in.)
- 4 in. high x 3 23/32 in. wide x 2 3/8 in. deep
- Dimensions (mm)
- 102 mm high x 94 mm wide x 60 mm deep
- Comments
- Use 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.
- Frequency
- 60 Hz
- Approvals, Underwriters Laboratories Inc.
- UL Listed: File MH11826
- Operating Humidity Range (% RH)
- 5 to 95% relative humidity, non-condensing.
- Voltage
- 120 Vac; Power Consumption--9.6 VA
- Timing
- Nominal Open--15 sec
- Ambient Temperature Range (F)
- 125 F Maximum
- Ambient Temperature Range (C)
- 52 C Maximum
- Connection Type
- NPT
- Body Pattern
- Two-way, Straight-through
- Pipe Size (inch)
- 1/2 in.
- Pipe Size (DN)
- DN15
- Current Draw
- 0.08A
- 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 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
