{"product_id":"champion-big-lock-plug-cap","title":"Champion Big-Lock Plug Cap - Plain and 1\/2 in FNPT Ported (73mm to 220mm)","description":"\u003cp\u003eA \u003cstrong\u003eChampion Big-Lock plug cap\u003c\/strong\u003e closes off the end of a grooved aluminum main. It comes in two forms: \u003cstrong\u003eplain\u003c\/strong\u003e, which simply terminates the run, and \u003cstrong\u003eported\u003c\/strong\u003e, with a 1\/2 in female NPT tapping in the face.\u003c\/p\u003e\u003cp\u003eThe ported version is the more useful of the two more often than people expect. That 1\/2 in port is where a pressure gauge goes at the far end of a main, or a drain at the bottom of a riser, or a future take-off that costs nothing to leave in place today.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eChoose your size and port 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\u003eNominal\u003c\/th\u003e\n\u003cth\u003ePort\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXCBL-PC-73\u003c\/td\u003e\n\u003ctd\u003e73mm\u003c\/td\u003e\n\u003ctd\u003e2-1\/2 in\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXCBL-PC-90\u003c\/td\u003e\n\u003ctd\u003e90mm\u003c\/td\u003e\n\u003ctd\u003e3 in\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXCBL-PC-115\u003c\/td\u003e\n\u003ctd\u003e115mm\u003c\/td\u003e\n\u003ctd\u003e4 in\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXCBL-PC-168\u003c\/td\u003e\n\u003ctd\u003e168mm\u003c\/td\u003e\n\u003ctd\u003e6 in\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXCBL-PC-220\u003c\/td\u003e\n\u003ctd\u003e220mm\u003c\/td\u003e\n\u003ctd\u003e8 in\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXCBL-PC-73-0.5N\u003c\/td\u003e\n\u003ctd\u003e73mm\u003c\/td\u003e\n\u003ctd\u003e2-1\/2 in\u003c\/td\u003e\n\u003ctd\u003e1\/2 in FNPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXCBL-PC-90-0.5N\u003c\/td\u003e\n\u003ctd\u003e90mm\u003c\/td\u003e\n\u003ctd\u003e3 in\u003c\/td\u003e\n\u003ctd\u003e1\/2 in FNPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXCBL-PC-115-0.5N\u003c\/td\u003e\n\u003ctd\u003e115mm\u003c\/td\u003e\n\u003ctd\u003e4 in\u003c\/td\u003e\n\u003ctd\u003e1\/2 in FNPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXCBL-PC-168-0.5N\u003c\/td\u003e\n\u003ctd\u003e168mm\u003c\/td\u003e\n\u003ctd\u003e6 in\u003c\/td\u003e\n\u003ctd\u003e1\/2 in FNPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eXCBL-PC-220-0.5N\u003c\/td\u003e\n\u003ctd\u003e220mm\u003c\/td\u003e\n\u003ctd\u003e8 in\u003c\/td\u003e\n\u003ctd\u003e1\/2 in FNPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eA plug cap seats on a grooved pipe end, so it needs a \u003ca href=\"https:\/\/aircompressorstore.com\/products\/champion-big-lock-straight-union-coupling\"\u003estraight union coupling\u003c\/a\u003e to hold it on. Order one per cap.\u003c\/p\u003e\u003ch2\u003eSpend the Extra and Take the Port\u003c\/h2\u003e\u003cp\u003eThe ported cap costs between $19 and $67 more than the plain one at list depending on size. For that you get a permanent 1\/2 in NPT tapping at the end of the run, which is worth having for three reasons.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eA gauge at the far end of the main.\u003c\/strong\u003e The pressure at the compressor tells you almost nothing. The gap between the compressor gauge and a gauge at the end of the header is your real distribution loss, and it is invisible without this.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA drain at a low point.\u003c\/strong\u003e If the capped end is the bottom of a riser or the low point of a pitched main, that is exactly where condensate collects, and the port takes a \u003ca href=\"https:\/\/aircompressorstore.com\/collections\/condensate-drains\"\u003edrain valve\u003c\/a\u003e directly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA future take-off.\u003c\/strong\u003e Plug it today, use it in three years when something gets added at that end of the building.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePlan the Main to Grow\u003c\/h2\u003e\u003cp\u003eNobody has ever regretted leaving a capped stub in a compressed air main. What plants regret is an undersized header with nowhere to tie in, because adding a branch later means isolating, draining, cutting and re-grooving a live main.\u003c\/p\u003e\u003cp\u003eWhen we lay out a Big-Lock system we normally put a capped tee wherever the floor plan looks likely to change: the end of a bay, the edge of an area earmarked for a cell, the point where a second compressor or receiver might land. A plug cap is $65 to $207. A shutdown to cut into a 6 in header is not.\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\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eMarine-grade aluminum\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\u003ePort Option\u003c\/td\u003e\n\u003ctd\u003ePlain, or 1\/2 in female NPT tapping\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoupling\u003c\/td\u003e\n\u003ctd\u003eNot included. One straight union coupling required per cap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eChampion Lifetime Warranty on Quick-Lock and Big-Lock pipe and fittings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eSpecification note.\u003c\/strong\u003e Champion's price list publishes description, part number and list price for the Big-Lock range and nothing else: no pressure rating, no temperature band, no weights and no dimensions, and we have not found a Big-Lock datasheet that supplies them. This listing states only what Champion publishes. Ask us and we will source anything further from the factory before you order.\u003c\/p\u003e\u003ch2\u003eIdeal Applications\u003c\/h2\u003e\u003cp\u003eTerminating a plant main at the far wall, capping the spare leg of a junction tee left in for future expansion, closing a stub during a phased install so the rest of the plant can run, blanking a branch taken out of service, and, in the ported version, fitting a gauge or a drain exactly where the system needs one.\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-straight-union-coupling\"\u003eStraight union couplings\u003c\/a\u003e, one per plug cap\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/aircompressorstore.com\/products\/champion-big-lock-union-tee\"\u003eJunction tees and reduction tees\u003c\/a\u003e, the usual thing a capped stub hangs off\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/aircompressorstore.com\/products\/champion-big-lock-union-elbow\"\u003e90 and 45 degree elbows and street elbows\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/aircompressorstore.com\/products\/champion-big-lock-adapter-and-reducer\"\u003eThreaded adapters and reducers\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/aircompressorstore.com\/products\/champion-quick-lock-npt-adapter-plug-and-gauge\"\u003eQuick-Lock 2.5 in liquid filled gauges\u003c\/a\u003e, which fit the 1\/2 in port on the ported caps\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 plug caps, 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. We will tell you where to leave capped stubs before the system goes in rather than after, and which of them should be ported. Send us the floor plan and we will quote the whole bill of material at no charge.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eDoes the cap include a coupling?\u003c\/h3\u003e\u003cp\u003eNo. The plug cap seats on a grooved pipe end and a straight union coupling holds it there. Order one coupling per cap. In the Big-Lock range only the elbows and tees include their couplings.\u003c\/p\u003e\u003ch3\u003eCan I remove a cap later to extend the run?\u003c\/h3\u003e\u003cp\u003eYes, and that is the point of leaving one. Isolate and depressurize the section, undo the coupling bolts, pull the cap off and carry on with pipe. No cutting, no re-grooving, no hot work. Inspect the gasket before it goes back into service.\u003c\/p\u003e\u003ch3\u003eIs there a 273mm plug cap?\u003c\/h3\u003e\u003cp\u003eNot in the current price list. The 273mm Big-Lock range is largely consult factory. Call or email and we will get it quoted.\u003c\/p\u003e\u003ch3\u003eWhat goes in the 1\/2 in port?\u003c\/h3\u003e\u003cp\u003eMost often a liquid filled pressure gauge, a drain valve, or a plug until you need it. Champion's 2.5 in liquid filled gauges in the Quick-Lock accessory range take a 1\/2 in male NPT and fit straight in.\u003c\/p\u003e\u003ch3\u003eCan I pressure test with caps fitted?\u003c\/h3\u003e\u003cp\u003eYes, and that is the normal way to commission a main before the branches are finished. Bring the pressure up in stages, inspect the joints at each step and hold at working pressure before signing it off. Champion publishes a 15 psig incremental procedure for Quick-Lock; apply the same discipline here and ask us if you want the Big-Lock figures confirmed by the factory first.\u003c\/p\u003e\u003ch3\u003eWhy is the 220mm cap so much more than the 168mm?\u003c\/h3\u003e\u003cp\u003e$207 against $112 at list. An 8 in cap is a considerably heavier casting and has to hold full system pressure against the whole bore area. Both are shown at Champion's list price.\u003c\/p\u003e","brand":"Champion","offers":[{"title":"73mm \/ 2.5 in \/ Plain","offer_id":67579388657939,"sku":"XCBL-PC-73","price":52.65,"currency_code":"USD","in_stock":true},{"title":"90mm \/ 3 in \/ Plain","offer_id":67579388690707,"sku":"XCBL-PC-90","price":52.65,"currency_code":"USD","in_stock":true},{"title":"115mm \/ 4 in \/ Plain","offer_id":67579388723475,"sku":"XCBL-PC-115","price":68.04,"currency_code":"USD","in_stock":true},{"title":"168mm \/ 6 in \/ Plain","offer_id":67579388756243,"sku":"XCBL-PC-168","price":90.72,"currency_code":"USD","in_stock":true},{"title":"220mm \/ 8 in \/ Plain","offer_id":67579388789011,"sku":"XCBL-PC-220","price":167.67,"currency_code":"USD","in_stock":true},{"title":"73mm \/ 2.5 in \/ 1\/2 in FNPT Port","offer_id":67579388821779,"sku":"XCBL-PC-73-0.5N","price":68.04,"currency_code":"USD","in_stock":true},{"title":"90mm \/ 3 in \/ 1\/2 in FNPT Port","offer_id":67579388854547,"sku":"XCBL-PC-90-0.5N","price":72.09,"currency_code":"USD","in_stock":true},{"title":"115mm \/ 4 in \/ 1\/2 in FNPT Port","offer_id":67579388887315,"sku":"XCBL-PC-115-0.5N","price":89.91,"currency_code":"USD","in_stock":true},{"title":"168mm \/ 6 in \/ 1\/2 in FNPT Port","offer_id":67579388920083,"sku":"XCBL-PC-168-0.5N","price":121.5,"currency_code":"USD","in_stock":true},{"title":"220mm \/ 8 in \/ 1\/2 in FNPT Port","offer_id":67579388952851,"sku":"XCBL-PC-220-0.5N","price":221.94,"currency_code":"USD","in_stock":true}],"url":"https:\/\/aircompressorstore.com\/products\/champion-big-lock-plug-cap","provider":"Warthog Air Compressor Store","version":"1.0","type":"link"}