LSQ-HX STEEL VALVE LOCKING TYPE PNEUMATIC QUICK COUPLING(STEEL AND BRASS)
Features: single hand operation. it use difference color to distinguish the medium. color plated is used for air and warter, Red coupling is used for acetylene, Green coupling is used for oxygen, blue couplings is used for carbon dioxide. it is widely used in Germany market.
Advantages: Single hand operation. Steel valve locking system. 
Application: Shipping manufacturing, repairing and other industry system need to avoid wrong connecting.
Working Pressure: 1.0Mpa
Working Temperature: -20degree to +120degree.