Corrosion prevention inside and outside the transmission box

1. The inside and outside of the valve body (including the gearbox) should first be shot blasted and rust removed, striving to electrostatic spray powder non-toxic epoxy resin with a thickness of over 0.3mm. When it is difficult to electrostatic spray non-toxic epoxy resin on oversized valves, similar non-toxic epoxy paint should also be brushed and sprayed.
2. The interior of the valve body and various parts of the valve plate require comprehensive anti-corrosion. On the one hand, immersion in water will not rust, and electrochemical corrosion will not occur between two metals; On the other hand, the smooth surface reduces the water resistance.
3. The hygiene requirements for anti-corrosion epoxy resin or paint inside the valve body should be reported by the corresponding testing agency. The chemical and physical properties should also meet relevant requirements.