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Belimo ZONE220N-35 2-Way Zone Valve 3/4" NPT 3.5Cv

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5 5 1
1  Review Add Your Review
Special Price $76.92 Regular Price $88.46
In stock
SKU
ZONE220N-35
The Belimo ZONE220N-35 2-way zone valve for HVAC systems with connection type of 3/4” NPT and Cv of 3.5. This valve regulates the flow of the chilled or hot water as its operating range is suitable for different fluid temperature and use in heating or cooling systems. Durability is further provided by its stainless steel trim and high pressure of 300 psi. The spring return actuator of the valve is suitable, which makes it possible to achieve on/off control. Advantages are enhanced energy conservation, accurate regulation of heat, and installation convenience making it suitable for both commercial and light industrial applications.
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HVAC Controls, HVAC Valve
Manufacturer:
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Specifications

  • Type: Zone Valve
  • Connection Size: 3/4" NPT
  • Flow Coefficient (Cv): 3.5
Manufacturer Name: Belimo
Product Number: ZONE220N-35
OEM Part Number: ZONE220N-35
Product Description: 3/4"Npt 2-Way 3.5Cv Zone Valve
Weight:0.96lbs/435.45g

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Product Questions (2)
Customer Questions
What maintenance is required for the Belimo ZONE220N-35 Zone Valve?

Inspect valve body and actuator for leaks and tighten any loose fittings. Manually cycle the valve periodically to prevent sticking and ensure smooth movement. Check wiring connections for tightness and integrity. Clean external surfaces to remove dust and debris buildup.

What are common issues with the Belimo ZONE220N-35 Zone Valve?

  • Valve sticking or failing to fully open or close.
  • Actuator not responding to control signals.
  • Water leakage around valve body or fittings.
  • Reduced flow due to internal blockage or scaling.
  • Electrical connection faults causing intermittent operation.

Installation Steps

Step 1: Disconnect electrical supply and verify system is de-energized.

Step 2: Close valves, release pressure to prevent fluid release.

Step 3: Remove existing valve and clean pipe threads thoroughly.

Step 4: Place new valve following flow direction arrow, thread connections and tighten securely.

Step 5: Reconnect actuator wiring per diagram, ensure insulation is secure.

Step 6: Open valves slowly, check for leaks, then restore power and test control response.