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ZT 44 RF ⁄ ZT 40 RF
Double valve flow adjustment device for regulating gate opening and closing speeds. Compensates for the unbalanced loads created by wind and out of plumb installation of very light and medium heavy gates.
Double valve flow adjustment device for regulating gate opening and closing speeds. Compensates for the unbalanced loads created by wind and out of plumb installation of very light and medium heavy gates.