Quality Assurance refers to administrative and procedural activities implemented in a quality system so that requirements and goals for a product, service or activity will be fulfilled. It is the systematic measurement, comparison with a standard, monitoring of processes and an associated feedback loop that confers error prevention.
Fittings which are placed on the ends of hoses and tubes (typically hydraulic or pneumatic) to allow them to be joined together quickly without twisting, turning, or wrenching.
Special “no leak” versions are available which have a non-return valve to prevent any liquid escaping when disconnected.
A machined solution to allow two pipes to be joined together quickly and without the need for special tools.