Municipal drainage projects impose rigorous requirements on the long-term pressure resistance of underground pipeline products. The plastic pipe hydrostatic pressure testing machine serves as core laboratory apparatus for evaluating PVC sewage pipes, underground drainage pipelines and other waste-water conveyance tubing. The equipment conducts sustained internal pressure assessment under constant temperature conditions, capturing failure time and burst pressure indicators. Test data helps manufacturers eliminate defective pipes prone to leakage or rupture after burial, standardizing production quality for residential sewerage and municipal rainwater drainage systems.