Estabrook’s mechanical leak detector testing equipment employs STP (Standard Temperature and Pressure) line pressure to ensure accurate and reliable results. Through manual simulation of a 3.0 gallon per hour line leak and assessment of factors such as opening time, resiliency, operating pressure, and STP check valve holding pressure, our testing procedure ensures the proper functioning of your leak detector. Testing requirements are typically associated with line testing and necessitate access to STP and dispenser shear valve for thorough evaluation.