4'' Bottom Loading Valve API adaptor

API Bottom Loading Adaptor installed at the bottom of tanker,to unload safely and conveniently. When unloading oil,the valve can connect with coupler quite firmly,that can effectively resist the pulling force. It has AL alloy structure and can fit for various coupler. Its design and structure can increase the service life and improve the operation ability Material: Body: AL alloy API valve head: hard AL Lift valve: AL alloy Seal: VITON / NBR Operate shaft: SS Feature: Casting