Hydrostatic testing is considered to be the industry standard in pressure testing, as it uses a nearly incompressible liquid such as water and can be used safely in high-pressure applications. Hydrostatic testing is significant for checking the strength and stability of valves when operating under pressure. This technique is normally utilized under common industry standards (API 598 or API 6D,Testing Standards: Valve Leakage & Ratings) or using customers’ requests or specifications.