{"product_id":"caleffi-autofill-553542a-pre-adjustable-automatic-filling-valve-1-2-in-nominal-mnpt-x-fnpt-end-style-230-psi-pressure-brass-body-import","title":"Caleffi AutoFill™ 553542A Pre-Adjustable Automatic Filling Valve, 1\/2 in Nominal, MNPT x FNPT End Style, 230 psi Pressure, Brass Body, Import","description":"\u003cp\u003eThe automatic filling unit is a device consisting of a pressure reducing valve with compensating seat, an inlet filter, a shut-off valve and a check valve. It is installed on the water inlet piping in sealed heating systems, and its main function is to maintain the pressure of the system stable at a set value, automatically filling up with water as required. This product has the characteristic of being pre-adjustable, which means that it can be adjusted at the required pressure value before the system charging phase. After installation, during the filling or topping-off phase, the water feed will stop when the set pressure is reached. A pre-assembled version is also available, complete with upstream backflow preventer.\u003c\/p\u003e","brand":"CALEFFI","offers":[{"title":"Default Title","offer_id":53406240407841,"sku":"553542A","price":128.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/1905\/1041\/files\/Caleffi_553542A.jpg?v=1787907747","url":"https:\/\/standardvmi.com\/products\/caleffi-autofill-553542a-pre-adjustable-automatic-filling-valve-1-2-in-nominal-mnpt-x-fnpt-end-style-230-psi-pressure-brass-body-import","provider":"Standard Plumbing Supply","version":"1.0","type":"link"}