Free 3-Way 3/4" NPT

Belimo 3-way diverting Valve;

3/4 inch NPT Female; Cv=5.0;

120 VAC NC+Spring Back

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Free 3-Way 1" NPT

Belimo 3-way diverting Valve; 

1 inch NPT Female; Cv=8.0;

120 VAC NC+Spring Back

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Free 3-Way 3/4" Sweat

Belimo 3-way diverting Valve;

3/4 inch Sweat; Cv=5.0;

120 VAC NC+Sprinc Back


The 3-way motorized valve ZONE-3 is used in solar and hydronic heating systems, in which different loads/zones of systems can be separately controlled or additional equipment can be switched on or off.

This high-quality valve is used where fail safe operation or 2-wire control is required.

pdf Belimo Zone Valve General Introduction (272 KB)

Belimo Zone Valve Series - Technical Product Brief

pdf Belimo Zone Valve Series - User Manual (135 KB)

Compact size, modern design, insulated actuator housing. Simple manual override for commissioning or emergency operation. Simple 120 VAC.electrical wiring.

The built-in end switch (dry contact) can be used for additional control purposes (max. 5A). The actuator can be quickly replaced without disassembly of the valve using Push button for quick removal.

Product Features:

  • Push button for quick removal of actuator
  • Easy manual open lever with automatic return
  • Up to 75 psi (5.2 bar) close-off
  • Built-In dry contact end switch
  • Spring return normally closed or normally open
  • Quiet operation

Note on Product Availability:

Solarnetix Inc. offers the ZONE-3 the 3-Way Diverting Valves from Belimo  with 3/4" Sweat, and a 1" NPT Female connections. For larger size valves, please contact us..

Valve Specifications:

  • Service:  Chilled or hot water, 50% glycol
  • Flow Characteristic: Three-way on/off, diverting
  • Sizes:   3/4 and 1 inch
  • Type of End Fitting:  NPT Female or Sweat


  • Body: Forged Brass
  • Stem: Stainless Steel
  • Seals:  EPDM
  • Pressure Rating: 300 psi (20.7 bar)
  • Media temp. range: 32°F to 240°F [0°C to 115°C]
  • Close off pressure: 20 - 75 psi (1.4 - 5.2 bar)
  • Leakage: Class III 0.1%
  • Cv Rating: 1.0 - 8.0
  • U.S. & Foreign Patent Pending


  • Control: On/off
  • Nominal voltage:  120 VAC 50/60 Hz ± 10%
  • Power Consumption: 6.5 W
  • Electrical Connection Wire lead length, 120V:  6"  (15.2 cm)
  • Position Indication: Integrated into lever (NC only)
  • Running Time Motor: 20-40 seconds
  • Spring: 5 seconds
  • Humidity: 5 to 95% non-condensing
  • Ambient Temperature: 32°F to 104°F (0°C to + 40°C)
  • Storage Temperature: -40°F to 176°F (-40°C to +80°C)
  • Housing Rating: UL94-5V(B)
  • Agency Listing: CE, cULus
  • Noise Level max.: 35 db (A)
  • Quality Standard: ISO 9001
  • Built-in Auxiliary Switch: 1 x SPST, 5A @ 120 VAC

* If you need Belimo vavles other than the 3-way valves above, please contact us for device selection help.

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