{"product_id":"champion-big-lock-stainless-flange-kit","title":"Champion Big-Lock Stainless Flange Kit - Standard and High Temperature (73mm to 220mm)","description":"\u003cp\u003eSooner or later an aluminum main has to meet something flanged: a dryer, a receiver, a filter housing, a compressor discharge. \u003cstrong\u003eChampion Big-Lock stainless steel flange kits\u003c\/strong\u003e make that connection properly, supplied complete with gasket and bolts, 73mm through 220mm, in standard and high temperature.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eChoose your size and temperature grade from the dropdowns 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\u003eFlange\u003c\/th\u003e\n\u003cth\u003eGrade\u003c\/th\u003e\n\u003cth\u003eSupplied With\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXCBL-SF-73-2.5ADP\u003c\/td\u003e\n\u003ctd\u003e73mm\u003c\/td\u003e\n\u003ctd\u003e2-1\/2 in\u003c\/td\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eAdapter, gasket, bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXCBL-SF-90-3.0ADP\u003c\/td\u003e\n\u003ctd\u003e90mm\u003c\/td\u003e\n\u003ctd\u003e3 in\u003c\/td\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eAdapter, gasket, bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXCBL-SF-115-4.0ADP\u003c\/td\u003e\n\u003ctd\u003e115mm\u003c\/td\u003e\n\u003ctd\u003e4 in\u003c\/td\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eAdapter, gasket, bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXCBL-SF-168-6.0GSK\u003c\/td\u003e\n\u003ctd\u003e168mm\u003c\/td\u003e\n\u003ctd\u003e6 in\u003c\/td\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eGasket, bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXCBL-SF-220-8.0GSK\u003c\/td\u003e\n\u003ctd\u003e220mm\u003c\/td\u003e\n\u003ctd\u003e8 in\u003c\/td\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eGasket, bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXCBL-HF-73-2.5ADP\u003c\/td\u003e\n\u003ctd\u003e73mm\u003c\/td\u003e\n\u003ctd\u003e2-1\/2 in\u003c\/td\u003e\n\u003ctd\u003eHigh Temperature\u003c\/td\u003e\n\u003ctd\u003eAdapter, gasket, bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXCBL-HF-90-3.0ADP\u003c\/td\u003e\n\u003ctd\u003e90mm\u003c\/td\u003e\n\u003ctd\u003e3 in\u003c\/td\u003e\n\u003ctd\u003eHigh Temperature\u003c\/td\u003e\n\u003ctd\u003eAdapter, gasket, bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXCBL-HF-115-4.0ADP\u003c\/td\u003e\n\u003ctd\u003e115mm\u003c\/td\u003e\n\u003ctd\u003e4 in\u003c\/td\u003e\n\u003ctd\u003eHigh Temperature\u003c\/td\u003e\n\u003ctd\u003eAdapter, gasket, bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXCBL-HF-168-6.0GSK\u003c\/td\u003e\n\u003ctd\u003e168mm\u003c\/td\u003e\n\u003ctd\u003e6 in\u003c\/td\u003e\n\u003ctd\u003eHigh Temperature\u003c\/td\u003e\n\u003ctd\u003eGasket, bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXCBL-HF-220-8.0GSK\u003c\/td\u003e\n\u003ctd\u003e220mm\u003c\/td\u003e\n\u003ctd\u003e8 in\u003c\/td\u003e\n\u003ctd\u003eHigh Temperature\u003c\/td\u003e\n\u003ctd\u003eGasket, bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eTwo Different Kits, Not One Kit in Five Sizes\u003c\/h2\u003e\u003cp\u003eRead the Supplied With column before you order. The 73mm, 90mm and 115mm kits include a \u003cstrong\u003ethreaded adapter\u003c\/strong\u003e, because at those sizes the transition goes grooved pipe to threaded adapter to flange. The 168mm and 220mm kits are \u003cstrong\u003egasket and bolts only\u003c\/strong\u003e, because at those sizes the flange lands on the pipe differently and no adapter is in the path.\u003c\/p\u003e\u003cp\u003eThis matters when you are building a bill of material from a drawing. A 6 in flanged connection is not a 4 in flanged connection with bigger parts in it, and if you order on that assumption you will be a component short on install day.\u003c\/p\u003e\u003ch2\u003eStandard or High Temperature\u003c\/h2\u003e\u003cp\u003eStandard is correct for air that has been through an aftercooler, which is nearly every flange in a distribution system. High temperature is for the discharge side, between the compressor and the cooler, where air can leave a rotary screw airend well above 180 F.\u003c\/p\u003e\u003cp\u003eAt 73mm, 90mm and 115mm the high temperature kit costs about four percent more than standard, which is small enough that if there is any doubt about the duty it is worth taking. At 168mm and 220mm the gap widens sharply, 48 and 31 percent, so at those sizes it is worth establishing the actual temperature first. Send us the layout and we will tell you which flanges sit upstream of the cooler.\u003c\/p\u003e\u003ch2\u003eWhat a Flange Kit Replaces\u003c\/h2\u003e\u003cp\u003eThe alternative to a proper flange kit is an improvised transition: a threaded adapter, a nipple, a reducing bushing and a companion flange sourced separately, each with its own leak path and its own tolerance stack. It usually costs about the same by the time it is all on the bench, and it is the joint that gets blamed every time the system loses pressure overnight.\u003c\/p\u003e\u003cp\u003eOne part number, one gasket, one torque sequence, done.\u003c\/p\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\u003eFlange Material\u003c\/td\u003e\n\u003ctd\u003eStainless steel\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\u003eGrades\u003c\/td\u003e\n\u003ctd\u003eStandard, High Temperature\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e73 \/ 90 \/ 115mm Kits\u003c\/td\u003e\n\u003ctd\u003eFlange, threaded adapter, gasket, bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e168 \/ 220mm Kits\u003c\/td\u003e\n\u003ctd\u003eFlange, gasket, bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoupling\u003c\/td\u003e\n\u003ctd\u003eNot included. Order a straight union coupling where the kit joins grooved pipe\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 flange standard or drilling pattern, no stainless grade, no pressure or temperature rating, no bolt torque, no weights and no dimensions. We have not found a Big-Lock flange datasheet. Rather than publish an ANSI class or a bolt pattern we cannot evidence, this listing states only what Champion publishes. If the drilling has to match a specific companion flange, tell us what it is and we will have the factory confirm before you order.\u003c\/p\u003e\u003ch2\u003eIdeal Applications\u003c\/h2\u003e\u003cp\u003eConnecting a Big-Lock main to refrigerated or desiccant dryers, receiver tank inlets and outlets, coalescing filter and separator housings, compressor discharge piping, aftercoolers and heat exchangers, and any packaged skid that arrives with flanged connections.\u003c\/p\u003e\u003ch2\u003eBuilding a Complete Big-Lock System\u003c\/h2\u003e\u003cul\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\n\u003ca href=\"https:\/\/aircompressorstore.com\/products\/champion-big-lock-flange-gasket\"\u003eReplacement flange gaskets\u003c\/a\u003e, standard and high temperature\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/aircompressorstore.com\/products\/champion-big-lock-flange-bolt-kit\"\u003eFlange bolt and gasket kits\u003c\/a\u003e for reassembly\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/aircompressorstore.com\/products\/champion-big-lock-straight-union-coupling\"\u003eStraight union couplings\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/aircompressorstore.com\/products\/champion-big-lock-butterfly-valve\"\u003eButterfly valves and valve kits\u003c\/a\u003e, which bolt between flanges\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/aircompressorstore.com\/collections\/air-dryers\"\u003eAir dryers\u003c\/a\u003e and \u003ca href=\"https:\/\/aircompressorstore.com\/collections\/air-filters\"\u003eair filters\u003c\/a\u003e, the usual thing on the other side\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 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 and we sell the pipe, the fittings and the dryers and filters on the other side of the flange. Send us the equipment list and the floor plan and we will tell you how many flange kits you need, in which grade, and what else the transition wants.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eDoes the kit include the gasket and bolts?\u003c\/h3\u003e\u003cp\u003eYes, both, in every size. The 73mm, 90mm and 115mm kits also include a threaded adapter. The 168mm and 220mm kits do not, because the connection is made differently at those sizes.\u003c\/p\u003e\u003ch3\u003eDo I still need a coupling?\u003c\/h3\u003e\u003cp\u003eWhere the kit joins grooved aluminum pipe, yes, order a straight union coupling for that joint. The flange kit covers the transition to the flanged equipment, not the grooved joint behind it.\u003c\/p\u003e\u003ch3\u003eWhat flange standard is it drilled to?\u003c\/h3\u003e\u003cp\u003eChampion does not publish it in the price list and we have not found a datasheet that states it. If your companion flange is a known standard, tell us which and we will have the factory confirm the match in writing before the order goes in. These are no-return items, so it is worth the phone call.\u003c\/p\u003e\u003ch3\u003eWhat torque do the flange bolts take?\u003c\/h3\u003e\u003cp\u003eNot published for the Big-Lock range. Champion publishes a torque ladder for the Quick-Lock range but we are not going to transfer those figures onto a different product and present them as Champion's. Ask us and we will get the Big-Lock figures from the factory.\u003c\/p\u003e\u003ch3\u003eCan I reuse the kit if I move the equipment?\u003c\/h3\u003e\u003cp\u003eThe flange and bolts yes, the gasket no. Order a replacement gasket in the matching size and grade.\u003c\/p\u003e\u003ch3\u003eIs there a 273mm flange kit?\u003c\/h3\u003e\u003cp\u003eNot in the current price list. Most of the 273mm Big-Lock range is consult factory. Ask us and we will have it quoted.\u003c\/p\u003e","brand":"Champion","offers":[{"title":"73mm \/ 2.5 in \/ Standard","offer_id":67579452260627,"sku":"XCBL-SF-73-2.5ADP","price":294.03,"currency_code":"USD","in_stock":true},{"title":"73mm \/ 2.5 in \/ High Temperature","offer_id":67579452293395,"sku":"XCBL-HF-73-2.5ADP","price":306.18,"currency_code":"USD","in_stock":true},{"title":"90mm \/ 3 in \/ Standard","offer_id":67579452326163,"sku":"XCBL-SF-90-3.0ADP","price":322.38,"currency_code":"USD","in_stock":true},{"title":"90mm \/ 3 in \/ High Temperature","offer_id":67579452358931,"sku":"XCBL-HF-90-3.0ADP","price":336.15,"currency_code":"USD","in_stock":true},{"title":"115mm \/ 4 in \/ Standard","offer_id":67579452391699,"sku":"XCBL-SF-115-4.0ADP","price":431.73,"currency_code":"USD","in_stock":true},{"title":"115mm \/ 4 in \/ High Temperature","offer_id":67579452424467,"sku":"XCBL-HF-115-4.0ADP","price":449.55,"currency_code":"USD","in_stock":true},{"title":"168mm \/ 6 in \/ Standard","offer_id":67579452457235,"sku":"XCBL-SF-168-6.0GSK","price":744.39,"currency_code":"USD","in_stock":true},{"title":"168mm \/ 6 in \/ High Temperature","offer_id":67579452490003,"sku":"XCBL-HF-168-6.0GSK","price":1103.22,"currency_code":"USD","in_stock":true},{"title":"220mm \/ 8 in \/ Standard","offer_id":67579452522771,"sku":"XCBL-SF-220-8.0GSK","price":1325.97,"currency_code":"USD","in_stock":true},{"title":"220mm \/ 8 in \/ High Temperature","offer_id":67579452555539,"sku":"XCBL-HF-220-8.0GSK","price":1737.45,"currency_code":"USD","in_stock":true}],"url":"https:\/\/aircompressorstore.com\/products\/champion-big-lock-stainless-flange-kit","provider":"Warthog Air Compressor Store","version":"1.0","type":"link"}