Agrify PRECISION HDU Operational Manual - Page 7

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Section 3 – Pressure Testing
The HDU comes factory tested and inspected for sustained pressure holding capabilities. However, shipping and moving of the unit may cause
pressure leaks and/or equipment exposure to drastic changes in temperature. It is the operator's responsibility to check for pressure leaks prior
to operation.
3.1.
Checking System for Leaks
3.1.1.
Attach all the components and hose assemblies.
3.1.2.
With all valves on the system open, bring the system pressure to 150 psig using a nitrogen cylinder.
3.1.3.
Note the actual readings of the pressure gauge by taking a photo for later comparison.
3.1.4.
Allow the system to sit under 150 psig for one hour if this is a primary test (first pressure test).
3.1.5.
Take note of any difference in pressure. This indicates a leak, and that the system is unsafe to operate.
3.2.
Identifying Leaks
3.2.1.
Fill a spray bottle with soapy water. Spray the area of the unit where a leak is suspected. The presence of bubbles
confirms a leak.
3.2.2.
The most common areas for leaks are the tri-clamp gasket sealing joints.
3.2.2.1.
Before adjusting any pieces on the unit, vent the system down to 0 psig.
Model HDU Operational Manual – For Hazardous Environments
Precision® Extraction Solutions
©2022 PX2 Holdings, LLC. All rights reserved. Rev. 04/24/23
Model HDU Operational Manual – For Hazardous Environments
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