Our products conform to the ISO16028 standard. Precautions for Using Quick Couplings When using quick couplings, please be sure to follow the precautions below. If you have any questions, please consult the dealer from whom you purchased this product or contact our company. • Do not use quick couplings with fluids other than the specified applicable fluids. • Ensure that the fluid used is clean and has been filtered through a proper filter. • Do not exceed the maximum working pressure during use. • Avoid using the couplings outside the applicable temperature range to prevent wear or leakage of the sealing material. • Do not subject the couplings to impact, bending, or stretching to prevent damage. • Do not use in environments containing metal dust or sand, as this may cause malfunction or leakage. • Remove any debris on the coupling to prevent malfunction or leakage. • Do not disassemble quick couplings. • Avoid over-bending the hose near the end of the quick couplings. • During installation, do not apply torque exceeding the maximum torque to prevent damage. • Do not use quick couplings as hinge joints. • Using quick couplings on machines subject to vibration or impact may reduce their durability. Welcome to RIO-REAL-RAOD Shop ！ We have a strong supply chain to guarantee the lowest or very low prices. So if there's something you need that we don't have on the shelves, you can contact us. We will be more than happy to find the goods for you and give you a good price and high quality products.Shop from our store to ensure that you save as much time & money as possible. Contact us ： If any problems occur with this item, or you are not satisfied with our service, please contact us , we will reply to you within 24 hours.We will do anything possible to make the situation right. We are looking forward to your positive feedback.