WELLMATE HYDROPNEUMATIC STORAGE TANK Polyethylene tank reinforced with glass fiber and epoxy resin. • Valve and protective cap to ensure safety. • Polyurethane membrane with joints double welded to ensure strength. • Replaceable membrane: facilitates the maintenance operations. • Easy to carry, easy installation. • Higher extraction factor than steel tanks of similar size, to optimize efficiency. • Lack of oxidation in corrosive environments, which is particularly important in agricultural. and livestock applications and in coastal regions.