The Red Valve Hawse pipe valve is a specially modified Type A pinch valve that provides a seal around the mooring lines, cable or chain, that anchor the platform to the sea floor.

• 美国红阀公司的锚链夹管阀是一种经过特殊改进的A型夹管阀，为那些将钻井平台锚定在海底的线缆、索或链提供环绕密封。