Pneumatic valves help create proper air pressure and flow rates within air-powered systems. Air-cylinder speed controls adjust the stroke speed of air cylinders and actuators. Manual air control valves manage air pressure within a system. Piloted non-return valves stop air cylinder movement as needed and maintain loads when systems lose pressure or suddenly shut down. Pneumatic actuating arms work with a pneumatic controller or electro-pneumatic transducer to operate ventilating dampers. Pneumatic flow control and needle valves regulate the flow of compressed air. Pneumatic threshold sensors detect the end of an air cylinder stroke and signal when pressure drops. Solenoid air control valves rely on electromagnetic levers for controlling air flow and release to achieve proper compressor function. Solenoid valve manifolds direct and distribute airflow to support multiple solenoid valves in a minimal space.