Belimo ZoneTight™ Zone Valves


Belimo ZoneTight Zone ValveBelimo ZoneTight™ Zone Valves are efficient in every way:

  • Compact Size
  • Low Power Consumption
  • Zero Leakage

Using Belimo ball valve design offers zero leakage, ensures tight closing, eliminating energy losses and resistant to clogging. The low power consumption is up to 95% less than conventional zone valves. They come with adjustable cV value to meet your design needs.

  • Forged brass body
  • Chrome-plated ballBelimo 3W Zonetight Zone Valve
  • Brass stem
  • Teflon PTFE Seats
  • EPDM(lubricated) O-Rings
  • NPT female ends
  • Chilled or hot water, 60% glycol
  • 3 ft. cable w/1/2” fitting screw terminals
  • Max ∆P 40 psi

ZoneTight™ Zone Valves with Non-Spring Return Actuators

Part # Size Cv Signal Power Set-Up Type  
Z3075Q-J+CQBUP-3 3/4" 5.9 On/Off Floating 110-240VAC - 3-Way Call... Add to Order
Z3075Q-J+CQB24-3 3/4" 5.9 On/Off Floating 24V - 3-Way Call... Add to Order
Z3050Q-H+CQBUP-3 1/2" 2.7 On/Off Floating 110-240VAC - 3-Way Call... Add to Order
Z3050Q-H+CQB24-3 1/2" 2.7 On/Off Floating 24V - 3-Way Call... Add to Order
Z3050Q-E+CQBUP-3 1/2" 1 On/Off Floating 110-240VAC - 3-Way Call... Add to Order
Z3050Q-E+CQB24-3 1/2" 1 On/Off Floating 24V - 3-Way Call... Add to Order
Z2075Q-K+CQBUP-3 3/4" 9.8 On/Off Floating 110-240VAC - 2-Way Call... Add to Order
Z2075Q-K+CQB24-SR-R 3/4" 9.8 Proportional, 2-10VDC 24V NC 2-Way Call... Add to Order
Z2075Q-K+CQB24-SR-L 3/4" 9.8 Proportional, 2-10VDC 24V NO 2-Way Call... Add to Order
Z2075Q-K+CQB24-3 3/4" 9.8 On/Off Floating 24V - 2-Way Call... Add to Order
Z2050Q-J+CQBUP-3 1/2" 5.9 On/Off Floating 110-240VAC - 2-Way Call... Add to Order
Z2050Q-J+CQB24-SR-R 1/2" 5.9 Proportional, 2-10VDC 24V NC 2-Way Call... Add to Order
Z2050Q-J+CQB24-SR-L 1/2" 5.9 Proportional, 2-10VDC 24V NO 2-Way Call... Add to Order
Z2050Q-J+CQB24-3 1/2" 5.9 On/Off Floating 24V - 2-Way Call... Add to Order

Belimo ZoneTight™ Zone Valves with Fail-Safe Actuators

The fail-safe actuators are all powered with 24V. Select the correct normal position (NO for Open, NC for Closed) and the appropriate fail-safe (FO for fail Open, FC for fail Closed) position for your application.

Part # Size Cv Signal Set-Up Aux Switch Type  
Z3075Q-J+CQKB24-S-RR 1/2" 5.9 Proportional, 2-10VDC NO/FO - 2-Way Call... Add to Order
Z3075Q-J+CQKB24-S-LL 3/4" 5.9 On/Off NO/FO 1 SPDT 3-Way Call... Add to Order
Z3075Q-J+CQKB24-RR 3/4" 5.9 On/Off NC/FC - 3-Way Call... Add to Order
Z3075Q-J+CQKB24-LL 3/4" 5.9 On/Off NO/FO - 3-Way Call... Add to Order
Z3050Q-H+CQKB24-S-RR 1/2" 2.7 On/Off NC/FC 1 SPDT 3-Way Call... Add to Order
Z3050Q-H+CQKB24-S-LL 1/2" 2.7 On/Off NO/FO 1 SPDT 3-Way Call... Add to Order
Z3050Q-H+CQKB24-RR 1/2" 2.7 On/Off NC/FC - 3-Way Call... Add to Order
Z3050Q-H+CQKB24-LL 1/2" 2.7 On/Off NO/FO - 3-Way Call... Add to Order
Z3050Q-E+CQKB24-S-RR 1/2" 1 On/Off NC/FC 1 SPDT 3-Way Call... Add to Order
Z3050Q-E+CQKB24-S-LL 1/2" 1 On/Off NO/FO 1 SPDT 3-Way Call... Add to Order
Z3050Q-E+CQKB24-RR 1/2" 1 On/Off NC/FC - 3-Way Call... Add to Order
Z3050Q-E+CQKB24-LL 1/2" 1 On/Off NO/FO - 3-Way Call... Add to Order
Z2075Q-K+CQKB24-SR-RR 3/4" 9.8 Proportional, 2-10VDC NC/FC - 2-Way Call... Add to Order
Z2075Q-K+CQKB24-SR-RL 3/4" 9.8 Proportional, 2-10VDC NO/FO - 2-Way Call... Add to Order
Z2075Q-K+CQKB24-SR-LR 3/4" 9.8 Proportional, 2-10VDC NC/FC - 2-Way Call... Add to Order
Z2075Q-K+CQKB24-SR-LL 3/4" 9.8 Proportional, 2-10VDC NO/FO - 2-Way Call... Add to Order
Z2075Q-K+CQKB24-S-RR 3/4" 9.8 On/Off NC/FC 1 SPDT 2-Way Call... Add to Order
Z2075Q-K+CQKB24-S-LL 3/4" 9.8 On/Off NO/FO 1 SPDT 2-Way Call... Add to Order
Z2075Q-K+CQKB24-RR 3/4" 9.8 On/Off NC/FC - 2-Way Call... Add to Order
Z2075Q-K+CQKB24-LL 3/4" 9.8 On/Off NO/FO - 2-Way Call... Add to Order
Z2050Q-J+CQKB24-SR-RR 3/4" 5.9 Proportional, 2-10VDC NC/FC - 2-Way Call... Add to Order
Z2050Q-J+CQKB24-SR-RL 1/2" 5.9 Proportional, 2-10VDC NO/FO - 2-Way Call... Add to Order
Z2050Q-J+CQKB24-SR-LR 1/2" 5.9 Proportional, 2-10VDC NC/FC - 2-Way Call... Add to Order
Z2050Q-J+CQKB24-S-RR 1/2" 5.9 On/Off NC/FC 1 SPDT 2-Way Call... Add to Order
Z2050Q-J+CQKB24-S-LL 1/2" 5.9 On/Off NO/FO 1 SPDT 2-Way Call... Add to Order
Z2050Q-J+CQKB24-RR 1/2" 5.9 On/Off NC/FC - 2-Way Call... Add to Order
Z2050Q-J+CQKB24-LL 1/2" 5.9 On/Off NO/FO - 2-Way Call... Add to Order

Belimo’s ZoneTight™ Pressure Independent Zone Valve (PIQCV)ZoneTight™ Pressure Independent Zone Valves With Non-Spring Return Actuators

Belimo’s ZoneTight™ Pressure Independent Zone Valve (PIQCV) is a two-way ½” valve which combines the functionality of a control valve and a pressure regulating valve, creating one precise appliance that is unaffected by pressure variances in a system.

  • Constant flow regardless of pressure variations in the system at set degrees of ball opening.
  • Maximizes chiller ∆P, preventing energizing additional chillers due to low ∆T.
  • No cV calculations necessary for sizing. ½” NPT female connections.
  • 3’ cable with ½” conduit fitting screw terminals.
Part # GPM Signal Power Set-Up  
Z2050QPT-F+CQBUP-3 4 On/Off FLTG 110-230VAC - Call... Add to Order
Z2050QPT-F+CQB24-SR-R 4 Proportional, 2-10VDC 24V NC Call... Add to Order
Z2050QPT-F+CQB24-SR-L 4 Proportional, 2-10VDC 24V NO Call... Add to Order
Z2050QPT-F+CQB24-3 4 On/Off FLTG 24V - Call... Add to Order
Z2050QPT-D+CQBUP-3 1.9 On/Off FLTG 110-230VAC - Call... Add to Order
Z2050QPT-D+CQB24-SR-R 1.9 Proportional, 2-10VDC 24V NC Call... Add to Order
Z2050QPT-D+CQB24-SR-L 1.9 Proportional, 2-10VDC 24V NO Call... Add to Order
Z2050QPT-D+CQB24-3 1.9 On/Off FLTG 24V - Call... Add to Order
Z2050QPT-B+CQBUP-3 0.9 On/Off FLTG 110-230VAC - Call... Add to Order
Z2050QPT-B+CQB24-SR-R 0.9 Proportional, 2-10VDC 24V NC Call... Add to Order
Z2050QPT-B+CQB24-SR-L 0.9 Proportional, 2-10VDC 24V NO Call... Add to Order
Z2050QPT-B+CQB24-3 0.9 On/Off FLTG 24V - Call... Add to Order

ZoneTight™ Pressure Independent Zone Valves With Fail-Safe Actuators

Part # GPM Signal Set-Up Aux Switch  
Z2050QPT-F+CQKB24-SR-RR 4 Proportional, 2-10VDC NC/FC - Call... Add to Order
Z2050QPT-F+CQKB24-SR-RL 4 Proportional, 2-10VDC NO/FO - Call... Add to Order
Z2050QPT-F+CQKB24-SR-LR 4 Proportional, 2-10VDC NC/FC - Call... Add to Order
Z2050QPT-F+CQKB24-SR-LL 4 Proportional, 2-10VDC NO/FO - Call... Add to Order
Z2050QPT-F+CQKB24-S-RR 4 On/Off NC/FC 1-SPDT Call... Add to Order
Z2050QPT-F+CQKB24-S-LL 4 On/Off NO/FO 1-SPDT Call... Add to Order
Z2050QPT-F+CQKB24-RR 4 On/Off NC/FC - Call... Add to Order
Z2050QPT-F+CQKB24-LL 4 On/Off NO/FO - Call... Add to Order
Z2050QPT-D+CQKB24-SR-RR 1.9 Proportional, 2-10VDC NC/FC - Call... Add to Order
Z2050QPT-D+CQKB24-SR-RL 1.9 Proportional, 2-10VDC NO/FO - Call... Add to Order
Z2050QPT-D+CQKB24-SR-LR 1.9 Proportional, 2-10VDC NC/FC - Call... Add to Order
Z2050QPT-D+CQKB24-SR-LL 1.9 Proportional, 2-10VDC NO/FO - Call... Add to Order
Z2050QPT-D+CQKB24-S-RR 1.9 On/Off NC/FC 1-SPDT Call... Add to Order
Z2050QPT-D+CQKB24-S-LL 1.9 On/Off NO/FO 1-SPDT Call... Add to Order
Z2050QPT-D+CQKB24-RR 1.9 On/Off NC/FC - Call... Add to Order
Z2050QPT-D+CQKB24-LL 1.9 On/Off NO/FO - Call... Add to Order
Z2050QPT-B+CQKB24-SR-RR 0.9 Proportional, 2-10VDC NC/FC - Call... Add to Order
Z2050QPT-B+CQKB24-SR-RL 0.9 Proportional, 2-10VDC NO/FO - Call... Add to Order
Z2050QPT-B+CQKB24-SR-LR 0.9 Proportional, 2-10VDC NC/FC - Call... Add to Order
Z2050QPT-B+CQKB24-SR-LL 0.9 Proportional, 2-10VDC NO/FO - Call... Add to Order
Z2050QPT-B+CQKB24-S-RR 0.9 On/Off NC/FC 1-SPDT Call... Add to Order
Z2050QPT-B+CQKB24-S-LL 0.9 On/Off NO/FO 1-SPDT Call... Add to Order
Z2050QPT-B+CQKB24-RR 0.9 On/Off NC/FC - Call... Add to Order
Z2050QPT-B+CQKB24-LL 0.9 On/Off NO/FO - Call... Add to Order