Leak testing regularly assesses seal performance. Following repair, replacement, or as part of periodic maintenance, sealing heads are subjected to pressure tests simulating worst-case well conditions. Any signs of leakage or pressure loss prompt immediate investigation and corrective action, ensuring the integrity and continuity of well barrier elements.​ https://globalsealstech.com/product-category/oil-gas-seals/oil-free-lubricated-pump-seals/