Gascat HORUS - User Manual

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Installation Manual, Maintenance and Operation

Pressure Regulating Valve

Model HORUS Spring to Close

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Questions and Answers

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smcknightAug 2, 2025
What to do if Gascat Control Unit feedthrough or regulator is locked in the open position?
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  William SmithAug 2, 2025
  If the Gascat Control Unit's feedthrough or regulator is locked open, several issues could be the cause. It might be due to a locked shutter of the main regulator. Try adjusting the unloading valve (needle) and inspect the shutter and anti-friction rings, replacing or cleaning them as needed, applying minimal grease, preferably bi-molybdenum sulfide, during assembly. Alternatively, a broken or damaged impulse line could be the culprit, so check its condition and replace it if necessary. Another possibility is damage to the headquarters or particulate matter between the shutter and seat, which requires cleaning and inspection of the headquarters for damage, replacing if necessary. Finally, a disruption of the main diaphragm of the FA valve could be the cause, requiring replacement.
C
Christopher MorrisAug 17, 2025
Why Gascat HORUS Control Unit outlet pressure oscillate?
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  Richard CooperAug 17, 2025
  If your Gascat Control Unit is malfunctioning with outlet pressure oscillation, it could be due to several reasons. One potential cause is low flow, specifically less than 5% of the maximum flow. In this case, check the operating conditions and restore the flow conditions to meet the equipment's design standards. Another reason might be poorly localized impulse. To resolve this, adjust the position of the pulse taken as reported in this manual, or contact GASCAT for engineering analysis. Finally, the issue might stem from the regulator's response speed being incompatible with the system. If this is the case, adjust the unloading valve (needle).