SBO Gravity Circulation Check Valves

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Prevent gravity circulation in heating and hot water systems

SBO gravity circulation check valves are installed downstream or upstream in heating and hot water installations to prevent gravity circulation. This ensures that the heating system works correctly, reliably, and at highest efficiency, reducing costs.

What are the features?

  • Ideal for sanitation and heating applications
  • Pump change without draining your system
  • Flow-optimized cone ensures reliable operation
  • Minimal pressure losses
Gravity circulation check valves

Sales brochures (PRO)

Document Language Reference number Download
Non-return (check) valves for HVAC systems, sanitary applications and industrial technology English PRO_810107 Download PDF
A - B product overview English PRO_810815 Download PDF
Programme court French PRO_818821 Download PDF
GESTRA product range - technical information English PRO_850128 Download PDF

Data sheets (DBL)


Gravity Circulation Checks SBO 11, SBO 21, SBO 31 PN 6 DN ¾", 1", 1¼"



Reference number



Download PDF

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