Mainline High Pressure Protection

Updated August 14, 2025 1 min read

Learn how to protect a mainline and close a master valve with a BL-5406-kit pressure biCoder.


Scenario 

  • Commerical site. 
  • Normally open Master Valve (mainline is always pressurized).
  • Moderate pressure can occasionally experience spikes from the supply (domestic or pump), which may damage components.

Goal

  • To prevent pressure spikes from damaging mainlines and components by automatically closing the master valve when pressure exceeds 150 psi.

Required Hardware

  • ¼” connection to mainline.
  • BL-5406-kit pressure biCoder. 
  • BL-CP PFS-100 control points and pressure. 

Bringing it Together 

  • BaseManager Flow Setup Control Points (we want to influence downstream of that master valve). 
  • Set a High Pressure Limit 150 psi.
  • Enable Shutdown
  • Under Devices:
    • Add Pressure Sensor, Flow Meter and Master Valve.
    • Enable Normally Open.
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