{"product_id":"champion-big-lock-flange-bolt-kit","title":"Champion Big-Lock Flange Bolt and Gasket Kit (73mm to 220mm)","description":"\u003cp\u003eWhen a flanged joint comes apart for service, the bolts have been loaded and the gasket has taken a set. \u003cstrong\u003eChampion Big-Lock flange bolt kits\u003c\/strong\u003e put both back as a matched set, 73mm through 220mm, one part number per size.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eChoose your size from the dropdown above.\u003c\/strong\u003e\u003c\/p\u003e\u003ch2\u003eModel Selection Chart\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eNominal\u003c\/th\u003e\n\u003cth\u003eContents\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXCBL-FB-73-BLTKT\u003c\/td\u003e\n\u003ctd\u003e73mm\u003c\/td\u003e\n\u003ctd\u003e2-1\/2 in\u003c\/td\u003e\n\u003ctd\u003eFlange bolts, gasket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXCBL-FB-90-BLTKT\u003c\/td\u003e\n\u003ctd\u003e90mm\u003c\/td\u003e\n\u003ctd\u003e3 in\u003c\/td\u003e\n\u003ctd\u003eFlange bolts, gasket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXCBL-FB-115-BLTK\u003c\/td\u003e\n\u003ctd\u003e115mm\u003c\/td\u003e\n\u003ctd\u003e4 in\u003c\/td\u003e\n\u003ctd\u003eFlange bolts, gasket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXCBL-FB-168-BLTK\u003c\/td\u003e\n\u003ctd\u003e168mm\u003c\/td\u003e\n\u003ctd\u003e6 in\u003c\/td\u003e\n\u003ctd\u003eFlange bolts, gasket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXCBL-FB-220-BLTK\u003c\/td\u003e\n\u003ctd\u003e220mm\u003c\/td\u003e\n\u003ctd\u003e8 in\u003c\/td\u003e\n\u003ctd\u003eFlange bolts, gasket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eWhy Not Just Buy Bolts\u003c\/h2\u003e\u003cp\u003eBecause the bolts are not the hard part. The hard part is having the right bolts, in the right length, in the right quantity, with the matching gasket, at the moment the joint is open and the line is isolated. A trip to the fastener bin produces something that threads in and does not produce a correctly specified flange joint.\u003c\/p\u003e\u003cp\u003eAt $57 to $242 at list this is a maintenance consumable, not a capital item. One kit per flange size in the plant, on the shelf, is the right answer.\u003c\/p\u003e\u003ch2\u003eReassembly, Briefly\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean both flange faces.\u003c\/strong\u003e Old gasket material left on the face is the most common cause of a joint that will not seal on the second attempt.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNew gasket, every time.\u003c\/strong\u003e It is in the kit for a reason.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePull the bolts up in a star pattern\u003c\/strong\u003e, in stages, not one bolt at a time to full load. Uneven loading cocks the flange and the joint weeps on the light side.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBring the system up in steps\u003c\/strong\u003e and inspect at each step rather than going straight to working pressure.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eShared Technical Specifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem\u003c\/td\u003e\n\u003ctd\u003eChampion Big-Lock grooved mechanical coupling for aluminum pipe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContents\u003c\/td\u003e\n\u003ctd\u003eFlange bolts and gasket, matched to the size\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSizes\u003c\/td\u003e\n\u003ctd\u003e73mm (2-1\/2 in) through 220mm (8 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange\u003c\/td\u003e\n\u003ctd\u003eNot included. For the complete flange see the stainless flange kits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eSpecification note.\u003c\/strong\u003e Champion's August 2026 price list publishes description, part number and list price for the Big-Lock range and nothing else: no bolt size, grade, length or count, no gasket material, no torque figure, no weights and no dimensions. We have not found a Big-Lock datasheet that supplies them. Rather than publish figures we cannot evidence, this listing states only what Champion publishes. If you need the bolt specification or a torque value before you order, ask us and we will get it from the factory.\u003c\/p\u003e\u003ch2\u003eIdeal Applications\u003c\/h2\u003e\u003cp\u003eScheduled maintenance on flanged connections to dryers, receivers and filter housings, reassembling a flange after a equipment swap, recommissioning an isolated section, and stocked spares for any plant running Big-Lock flanges.\u003c\/p\u003e\u003ch2\u003eBuilding a Complete Big-Lock System\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/aircompressorstore.com\/products\/champion-big-lock-stainless-flange-kit\"\u003eStainless flange kits\u003c\/a\u003e, standard and high temperature, for the complete connection\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/aircompressorstore.com\/products\/champion-big-lock-flange-gasket\"\u003eFlange gaskets on their own\u003c\/a\u003e, if the bolts are still good\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/aircompressorstore.com\/products\/champion-big-lock-coupling-seal\"\u003eReplacement coupling seals\u003c\/a\u003e for the grooved joints\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/aircompressorstore.com\/products\/champion-big-lock-series-aluminum-compressed-air-pipe\"\u003eBig-Lock aluminum pipe, 73mm to 273mm\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/aircompressorstore.com\/products\/champion-big-lock-butterfly-valve\"\u003eButterfly valves and valve kits\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eOrdering Notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAll Big-Lock products and accessories are NO CANCEL \/ NO RETURN\u003c\/strong\u003e, per Champion's current price list.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreight:\u003c\/strong\u003e freight collect from Huntersville, NC 28078 or Las Vegas, NV 89113.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping weights:\u003c\/strong\u003e Champion publishes no weight for any Big-Lock fitting, so no catalog weight is carried on these variants.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhotography:\u003c\/strong\u003e Champion publishes no photograph of the Big-Lock flange bolt kits, so this listing is deliberately shown without an image rather than with a stand-in from another manufacturer's grooved range.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy Buy from Air Compressor Store\u003c\/h2\u003e\u003cp\u003eAir Compressor Store is an authorized Champion Pneumatic distributor. Tell us which flange sizes your plant runs and we will put the matching bolt kits and gaskets on one quote so the spares shelf is right before anything is opened.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eIs the flange in the kit?\u003c\/h3\u003e\u003cp\u003eNo. This is the bolts and the gasket, for reassembling a flange you already have. For the flange itself, with its adapter where applicable, see the stainless flange kits.\u003c\/p\u003e\u003ch3\u003eHow many bolts are in a kit?\u003c\/h3\u003e\u003cp\u003eChampion does not publish the count in the price list and we are not going to guess it. The kit is sized to the flange, so it is the correct quantity for one joint. Ask us if you need the figure confirmed before ordering.\u003c\/p\u003e\u003ch3\u003eWhy do the part numbers end differently?\u003c\/h3\u003e\u003cp\u003eThe 73mm and 90mm kits print as BLTKT and the 115mm, 168mm and 220mm as BLTK in Champion's current price list. We have carried the part numbers exactly as printed. If the factory corrects them we will update the listing.\u003c\/p\u003e\u003ch3\u003eWhat torque do the bolts take?\u003c\/h3\u003e\u003cp\u003eNot published for Big-Lock. Champion publishes a torque ladder for the Quick-Lock range but those are different fasteners on a different joint and we will not transfer the figures across. Pull up in a star pattern, in stages, and ask us if you need a specified value.\u003c\/p\u003e\u003ch3\u003eCan I buy just the gasket?\u003c\/h3\u003e\u003cp\u003eYes. The flange gaskets are listed separately in standard and high temperature grades.\u003c\/p\u003e","brand":"Champion","offers":[{"title":"73mm \/ 2.5 in","offer_id":67579458257171,"sku":"XCBL-FB-73-BLTKT","price":46.17,"currency_code":"USD","in_stock":true},{"title":"90mm \/ 3 in","offer_id":67579458289939,"sku":"XCBL-FB-90-BLTKT","price":47.79,"currency_code":"USD","in_stock":true},{"title":"115mm \/ 4 in","offer_id":67579458322707,"sku":"XCBL-FB-115-BLTK","price":81.81,"currency_code":"USD","in_stock":true},{"title":"168mm \/ 6 in","offer_id":67579458355475,"sku":"XCBL-FB-168-BLTK","price":165.24,"currency_code":"USD","in_stock":true},{"title":"220mm \/ 8 in","offer_id":67579458388243,"sku":"XCBL-FB-220-BLTK","price":196.02,"currency_code":"USD","in_stock":true}],"url":"https:\/\/aircompressorstore.com\/products\/champion-big-lock-flange-bolt-kit","provider":"Warthog Air Compressor Store","version":"1.0","type":"link"}