{"product_id":"zilmet-hydro-pro-250-litre-potable-expansion-vessel","title":"Zilmet Hydro Pro 250L Potable Expansion Vessel","description":"\u003cp\u003eThe \u003cstrong\u003eZilmet Hydro Pro 250L Potable Expansion Vessel\u003c\/strong\u003e is designed for high-capacity domestic hot water, potable water and pressurised water systems. Its 250 litre capacity provides substantial expansion volume to accommodate changes in water volume as it is heated, helping maintain controlled system pressure.\u003c\/p\u003e\n\u003cp\u003eThe Hydro Pro combines a fixed potable-water-rated butyl membrane with a robust carbon steel shell. Its MIG-welded construction is designed to provide a smooth internal surface, while the membrane configuration helps minimise areas where water can stagnate. The durable epoxy-coated finish and floor-standing design make this vessel suitable for larger commercial and domestic water heating installations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note: Vessel shape may differ slightly from the product image.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e250 litre capacity\u003c\/strong\u003e for high-volume potable water systems\u003c\/li\u003e\n\u003cli\u003eDesigned for \u003cstrong\u003edomestic hot water and potable water applications\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eFixed \u003cstrong\u003ebutyl membrane\u003c\/strong\u003e designed to minimise water stagnation\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e10 bar maximum working pressure\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e2 bar factory pre-charge\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eRobust \u003cstrong\u003eMIG-welded carbon steel construction\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eDurable \u003cstrong\u003eepoxy-coated\u003c\/strong\u003e finish\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e1¼\" BSP connection\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eFloor-standing configuration for larger installations\u003c\/li\u003e\n\u003cli\u003eSuitable for \u003cstrong\u003ewater heaters, boilers and pump systems\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eHelps accommodate \u003cstrong\u003ethermal expansion\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSuitable for applications requiring \u003cstrong\u003ewater hammer control\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eCertified according to \u003cstrong\u003ePED 2014\/68\/EU\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e5-year warranty\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLarge domestic hot water systems\u003c\/li\u003e\n\u003cli\u003eCommercial hot water installations\u003c\/li\u003e\n\u003cli\u003eHigh-capacity water heating systems\u003c\/li\u003e\n\u003cli\u003eHot water cylinders and water heaters\u003c\/li\u003e\n\u003cli\u003eBoiler and pressurised water systems\u003c\/li\u003e\n\u003cli\u003ePotable water installations\u003c\/li\u003e\n\u003cli\u003ePump and boosted water systems\u003c\/li\u003e\n\u003cli\u003eThermal expansion control\u003c\/li\u003e\n\u003cli\u003eWater hammer reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePotable Water Expansion Vessel\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRange\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eZilmet Hydro Pro\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCapacity\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e250 Litres\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct Code\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e11A0025000\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInstallation\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFloor Standing\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDiameter\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e630mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHeight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e957mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eConnection Height\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e245mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eConnection\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1¼\" BSP (1¼\"G)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMaximum Working Pressure\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10 bar\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eFactory Pre-Charge\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2 bar\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOperating Temperature\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-10°C to 99°C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShell Material\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCarbon steel\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMembrane\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFixed Butyl\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eConnection Material\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eStainless 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