{"product_id":"weil-mclain-590-317-628","title":"Weil McLain 590-317-628 Gasket","description":"\u003cp\u003eThe \u003cstrong\u003eWeil McLain 590-317-628 Inspection Port Gasket\u003c\/strong\u003e seals the \u003cstrong\u003einspection port cover\u003c\/strong\u003e on the \u003cstrong\u003eWeil-McLain GV\u003c\/strong\u003e gas boiler. The \u003cstrong\u003eGV Series 3\u003c\/strong\u003e and \u003cstrong\u003eGV Series 4\u003c\/strong\u003e parts lists both show it as an \"Inspection Port Gasket,\" in the \u003cstrong\u003esection assembly\u003c\/strong\u003e figures (Figs. 11\/12) and again in the later assembly figures (Figs. 18\/19), marked for all boilers on the list. It is a flat \u003cstrong\u003ered rectangular gasket\u003c\/strong\u003e with \u003cstrong\u003etwo mounting holes\u003c\/strong\u003e, one at each end, shown in the photo against a ruler. It sits between the boiler and the \u003cstrong\u003e560-907-629\u003c\/strong\u003e \u003cstrong\u003einspection port cover\u003c\/strong\u003e, which \u003cstrong\u003eWeil-McLain\u003c\/strong\u003e lists for the same \u003cstrong\u003eGV Series 3 and 4\u003c\/strong\u003e boilers.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003einspection port\u003c\/strong\u003e is how a tech sees into the \u003cstrong\u003ecombustion side\u003c\/strong\u003e of the boiler, so it has to be \u003cstrong\u003egas-tight\u003c\/strong\u003e every time the cover goes back on. A \u003cstrong\u003egasket\u003c\/strong\u003e that is hardened, cracked or flattened by an earlier service lets \u003cstrong\u003eflue gas\u003c\/strong\u003e escape into the room or lets \u003cstrong\u003eroom air\u003c\/strong\u003e in, and either one affects combustion and safety. A \u003cstrong\u003egasket\u003c\/strong\u003e also takes a \u003cstrong\u003ecompression set\u003c\/strong\u003e the first time the cover is tightened, and it rarely seals as well the second time, so it is a one-time-use item.\u003c\/p\u003e\n\n\u003cp\u003eAlways fit a \u003cstrong\u003enew gasket\u003c\/strong\u003e when the cover has been removed. Clean the sealing surface, line up the two holes, set the cover and tighten evenly so the \u003cstrong\u003egasket\u003c\/strong\u003e seats without being crushed. Check the finished joint with a \u003cstrong\u003ecombustion analyzer\u003c\/strong\u003e for \u003cstrong\u003ecarbon monoxide\u003c\/strong\u003e after the boiler fires, and look for staining at the edges at the next service. If you are also opening the vent connection, replace the \u003cstrong\u003e590-317-629\u003c\/strong\u003e \u003cstrong\u003estarter tee gasket\u003c\/strong\u003e at the same time, since both are listed together on the parts lists. This \u003cstrong\u003egasket\u003c\/strong\u003e is not listed on the \u003cstrong\u003eGV Series 1 and 2\u003c\/strong\u003e parts list, so confirm your series before you order. A few minutes of work and one inexpensive \u003cstrong\u003egasket\u003c\/strong\u003e keep the \u003cstrong\u003einspection port\u003c\/strong\u003e from becoming a leak path.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKey Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSeals the Inspection Port:\u003c\/strong\u003e Keeps \u003cstrong\u003eflue gas\u003c\/strong\u003e inside the boiler when the \u003cstrong\u003einspection port cover\u003c\/strong\u003e is installed.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eListed for GV Series 3 and 4:\u003c\/strong\u003e Shown on the \u003cstrong\u003eWeil-McLain GV\u003c\/strong\u003e Series 3 and \u003cstrong\u003eGV Series 4\u003c\/strong\u003e parts lists.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTwo-Hole Rectangular Shape:\u003c\/strong\u003e The flat \u003cstrong\u003etwo-hole gasket\u003c\/strong\u003e is shown against a ruler so you can compare it to your old one.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePairs With the Starter Tee Gasket:\u003c\/strong\u003e Order the \u003cstrong\u003e590-317-629\u003c\/strong\u003e at the same time when the vent connection is also being opened.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eCommon Questions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWhich boilers list the 590-317-628?\u003c\/strong\u003e The \u003cstrong\u003eWeil-McLain GV\u003c\/strong\u003e Series 3 and \u003cstrong\u003eGV Series 4\u003c\/strong\u003e parts lists.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCan I reuse the old gasket?\u003c\/strong\u003e It is best not to. A used \u003cstrong\u003egasket\u003c\/strong\u003e has taken a \u003cstrong\u003ecompression set\u003c\/strong\u003e, so fit a new \u003cstrong\u003e590-317-628\u003c\/strong\u003e whenever the \u003cstrong\u003einspection port cover\u003c\/strong\u003e has been removed.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDoes the cover come with it?\u003c\/strong\u003e No. The \u003cstrong\u003e560-907-629\u003c\/strong\u003e is the cover and is a separate part. This is the \u003cstrong\u003egasket\u003c\/strong\u003e only.\u003c\/li\u003e\n\u003c\/ul\u003e\n\nDisclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.","brand":"Weil McLain","offers":[{"title":"Default Title","offer_id":68025748652210,"sku":"590-317-628","price":40.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1838\/2375\/files\/590-317-628.jpg?v=1794598707","url":"https:\/\/www.gsistore.com\/en-ca\/products\/weil-mclain-590-317-628","provider":"GSIstore","version":"1.0","type":"link"}