OBL XL Hydraulic Diaphragm Pumps – Robust and Flexible for Any Application

XL series pumps are hydraulic diaphragm positive displacement pumps, with fixed stroke length. Fluid end flow adjustment is by controlled bypass of hydraulic oil. This design incorporates a built in relief valve and mechanically actuated oil replenishing system, in full compliance with API Standard 675. Guaranteed no flow when pump adjustment is set to zero even without back pressure. Diaphragm has working life on in excess of 50 000 hours.

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