{"product_id":"seaflo-vaso-di-espansione-8-lt-per-autoclave","title":"Seaflo 8 Lt Expansion Tank for Pressure Pump","description":"\u003cp\u003eThe \u003cstrong\u003eSeaflo 8-litre Expansion Tank\u003c\/strong\u003e is the \u003cstrong\u003ediaphragm accumulator for pressurised water systems\u003c\/strong\u003e with large capacity, designed for boats, yachts and vessels with more complex water installations. Thanks to its generous volume, it ensures \u003cstrong\u003estable, continuous water pressure\u003c\/strong\u003e across multiple simultaneous outlets, eliminating the pressure fluctuations typical of systems relying solely on a pressure pump.\u003c\/p\u003e\n\n\u003ch2\u003eWhy an 8-litre tank on board\u003c\/h2\u003e\n\u003cp\u003eCompared to compact models, the 8-litre tank stands out for its ability to \u003cstrong\u003esupply multiple outlets simultaneously\u003c\/strong\u003e — shower, washbasin, galley sink — maintaining constant pressure without the pump having to restart every time a tap is opened. The result is \u003cstrong\u003esmooth flow comparable to a domestic water supply\u003c\/strong\u003e, even on cruising yachts or larger vessels.\u003c\/p\u003e\n\n\u003ch2\u003eInternal diaphragm and water hammer absorption\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003einternal rubber diaphragm\u003c\/strong\u003e separates the air chamber from the water chamber, absorbing pressure fluctuations and \u003cstrong\u003ewater hammer\u003c\/strong\u003e caused by the rapid opening and closing of valves and taps. This results in a quieter, less wear-prone system with a \u003cstrong\u003esignificantly extended pump service life\u003c\/strong\u003e. The diaphragm requires no routine maintenance and allows universal mounting in any orientation.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation and pre-charge adjustment\u003c\/h2\u003e\n\u003cp\u003eThe tank features a \u003cstrong\u003eSchrader valve\u003c\/strong\u003e — the same type found on bicycle and car tyres — allowing the pre-charge pressure to be adjusted with any compressor or hand pump. The practical rule is to set the pre-charge to \u003cstrong\u003e5 PSI below the pump’s cut-in pressure\u003c\/strong\u003e, to maximise the volume of water delivered before the pump reactivates. The \u003cstrong\u003e¾″ MNPT fitting\u003c\/strong\u003e ensures compatibility with the main marine fittings and pipework.\u003c\/p\u003e\n\n\u003ch2\u003eReduced consumption and system protection\u003c\/h2\u003e\n\u003cp\u003eEvery pump restart causes an electrical current spike. By drastically reducing the frequency of start-stop cycles, the 8 Lt expansion tank \u003cstrong\u003elowers onboard power consumption\u003c\/strong\u003e, helps protect the battery and ensures more efficient management of energy resources — particularly important on passages or when at anchor without shore power.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eModel:\u003c\/strong\u003e SFAT-087-021-01\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCapacity:\u003c\/strong\u003e 8 Lt (2 gallons)\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMax. pressure:\u003c\/strong\u003e 87 PSI \/ 6 bar\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFittings:\u003c\/strong\u003e ¾″ MNPT\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePre-charge valve:\u003c\/strong\u003e Schrader (bicycle pump compatible)\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDiaphragm:\u003c\/strong\u003e Internal rubber, maintenance-free\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 6 kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Seaflo","offers":[{"title":"Default Title","offer_id":57654622323019,"sku":"SF600995","price":56.5,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0861\/8121\/6587\/files\/seaflo-vaso-espansione-8-lt_105111.jpg?v=1782203239","url":"https:\/\/mareshop.eu\/en\/products\/seaflo-8-lt-expansion-tank-pressure-pump","provider":"Mareshop","version":"1.0","type":"link"}