INOXPA HLR, Installation, Service And Maintenance Instructions

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14 5.Start-up (A) 2021/11
5.2.1. External Assembly
When installing a pressure relief valve, some points shall be considered:
• To avoid dead legs
• Drainability of the pump and pipeline
Please see figure below where recommended installation is shown:
Wrong Installation Correct installation
Example of standard Pressure Relief Valve installation.
This arrangement creates a dead leg with a large amount
of product.
Example of Hygienic NCS Pressure Relief Valve installation, with
air actuated rising.
It allows pump and pipeline to drain, avoiding dead areas.
When checking the relief valve also make sure the pump's pressure will NEVER exceed the pressure
s 2 bar.
When the relief valve does not work properly, the pump must be taken out of service immediately.
The valve must be inspected by an INOXPA service technician.