Schrader valves, commonly known as "American valves," are widely used in various pneumatic systems, including automotive tires, air conditioning systems, and SCUBA equipment. These valves consist of a valve stem and a replaceable core with a spring-loaded pin that opens to allow air or fluid in and closes to seal the system.

In low-pressure applications, Schrader valves are designed to operate effectively at pressures typically below 50 psi (approximately 3.4 bar). Specialized low-pressure Schrader valves are engineered to minimize leakage and ensure reliable performance in such conditions.