Adopting a non porous closed diaphragm design, the risk of gap leakage is eliminated from the root, and the force is evenly distributed, greatly improving the fatigue strength of the diaphragm Innovative convex valve seat, leak proof and strong sealing Imported air valve, wear-resistant and anti-aging, long service life Alloy high-pressure chamber, sturdy and sturdy The air valve adopts a refined and simplified design, without the need to disassemble the pipeline. Simply open the external cover plate to complete the maintenance or replacement of internal components within a few seconds