VCI one way valve flange and vlave leaks cover with drain tube protect flange and vlave assets from corrosion and leakage during gas or liquid transmission pipeline. Soft Flange band protectors made of PVC ,VCI ,FEP ,Neoprene, silicone prevent flange sealing problems, preventing VOCs, atmospheric ,corrosion and maintaining the integrity of the pipeline. SUS 316L Flange band protectors with expanded PTFE gasket tape for sealing. For chemicals, LNG, cryogenic temperature.Self adhesive flange rubber protector Before sandblasting and/or painting, you simply peel off and toss away the shieldVCI Magnet Guard Flange Protectors cover the raised face portion of your carbon steel valves and flanges and protect from abrasion.ReusableSelf Adhesive Pressboard Flange Face Protectors with Vapor Based Corrosion Protection,also can produce VCI soft PVC flange protectors,but Pressboard is hard then PVC.more good then Soft PVC,used for shipping and storage