Tubephragm Technology Explained

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A tubephragm pump utilizes a hydraulically actuated flexible tubular diaphragm clamped at both ends. In operation, the plunger moves rearward and through hydraulic coupling expands the tube admitting liquid into the tube’s cavity through the suction check valve. As the plunger moves forward, the hydraulic fluid constricts the tube moving the process liquid through the discharge check valve. A disc diaphragm constrained by contour plates may be used in series hydraulically. This disc diaphragm is used to ensure that the tube operates within its elastic limits.