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Periodical Maintenance Scheme: To ensure the duration in time, it is necessary to verify periodically the pre-loading pressure inside of the vessel. This should be carried out at least every 3 months.

Pre-Loading: Depressurize vessel by switching of control to system and opening outlet valve until system pressure has completely dispersed. Through the pre-loading air valve located on the top or inside of the plastic protection cover verify the pre-loading pressure of the vessel with the help of a pressure gauge. In case there is insufficient pressure, bring back the pre-loading pressure using a air compressor to its initial value indicated on the label or at least 0.3 Bar below the cut in pressure of the pump.

ESPA Pumps (UK) Ltd, 15 Riverside Avenue West, Lawford, Manningtree, Essex CO11 1UN TEL: 01206 391291 FAX: 01206 391239 E-mail:

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