{"product_id":"hengsen-standard-wall-copper-straight-couplings","title":"HENGSEN Standard-Wall Copper Straight Couplings | 6.35–133 mm","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eHENGSEN Standard-Wall Copper Straight Couplings join two compatible copper tubes of the same size in a straight line. Their equal-size socket connections are designed for refrigeration and air-conditioning pipework where an inline connection is required.\u003c\/p\u003e\n\u003cp\u003eThis range includes 29 size options from 6.35 to 133 mm, with wall thicknesses from 0.8 to 3.0 mm depending on the selected size. Each variant pairs a listed connection size with its corresponding wall thickness for straightforward selection during installation, pipe extensions and replacement work.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStraight inline connection:\u003c\/strong\u003e Joins two aligned copper tube ends.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEqual-size sockets:\u003c\/strong\u003e The same listed connection size at both ends.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCopper construction:\u003c\/strong\u003e For connection to compatible copper tubing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e29 size options:\u003c\/strong\u003e Sizes from 6.35 to 133 mm in one product range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearly specified wall thickness:\u003c\/strong\u003e Each variant identifies its size and corresponding wall thickness.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eItem\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHENGSEN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eCopper Straight Coupling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eStandard Wall\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eCopper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitting Configuration\u003c\/td\u003e\n\u003ctd\u003eEqual Straight Coupling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection Style\u003c\/td\u003e\n\u003ctd\u003eSocket × Socket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eListed Connection Size Range\u003c\/td\u003e\n\u003ctd\u003e6.35–133 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWall Thickness Range\u003c\/td\u003e\n\u003ctd\u003e0.8–3.0 mm, depending on size\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAvailable Variants\u003c\/td\u003e\n\u003ctd\u003e29\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecification Format\u003c\/td\u003e\n\u003ctd\u003eConnection Size × Wall Thickness\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eAvailable Sizes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSize × Wall Thickness\u003c\/th\u003e\n\u003cth\u003eListed Connection Size (mm)\u003c\/th\u003e\n\u003cth\u003eWall Thickness (mm)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e6.35 × 0.8 mm\u003c\/td\u003e\n\u003ctd\u003e6.35\u003c\/td\u003e\n\u003ctd\u003e0.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8 × 0.9 mm\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e0.9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10 × 0.9 mm\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e0.9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12 × 0.9 mm\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003ctd\u003e0.9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12.7 × 0.9 mm\u003c\/td\u003e\n\u003ctd\u003e12.7\u003c\/td\u003e\n\u003ctd\u003e0.9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e15.88 × 0.9 mm\u003c\/td\u003e\n\u003ctd\u003e15.88\u003c\/td\u003e\n\u003ctd\u003e0.9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e16 × 0.9 mm\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003ctd\u003e0.9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e19 × 0.9 mm\u003c\/td\u003e\n\u003ctd\u003e19\u003c\/td\u003e\n\u003ctd\u003e0.9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e22 × 1.0 mm\u003c\/td\u003e\n\u003ctd\u003e22\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e22.23 × 1.0 mm\u003c\/td\u003e\n\u003ctd\u003e22.23\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e25 × 1.0 mm\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e25.4 × 1.0 mm\u003c\/td\u003e\n\u003ctd\u003e25.4\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e28 × 1.0 mm\u003c\/td\u003e\n\u003ctd\u003e28\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e28.58 × 1.0 mm\u003c\/td\u003e\n\u003ctd\u003e28.58\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e32 × 1.3 mm\u003c\/td\u003e\n\u003ctd\u003e32\u003c\/td\u003e\n\u003ctd\u003e1.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e35 × 1.3 mm\u003c\/td\u003e\n\u003ctd\u003e35\u003c\/td\u003e\n\u003ctd\u003e1.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e38 × 1.4 mm\u003c\/td\u003e\n\u003ctd\u003e38\u003c\/td\u003e\n\u003ctd\u003e1.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e41.28 × 1.4 mm\u003c\/td\u003e\n\u003ctd\u003e41.28\u003c\/td\u003e\n\u003ctd\u003e1.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e42 × 1.4 mm\u003c\/td\u003e\n\u003ctd\u003e42\u003c\/td\u003e\n\u003ctd\u003e1.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e45 × 1.5 mm\u003c\/td\u003e\n\u003ctd\u003e45\u003c\/td\u003e\n\u003ctd\u003e1.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e50 × 1.7 mm\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003ctd\u003e1.7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e51 × 1.7 mm\u003c\/td\u003e\n\u003ctd\u003e51\u003c\/td\u003e\n\u003ctd\u003e1.7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e54 × 1.8 mm\u003c\/td\u003e\n\u003ctd\u003e54\u003c\/td\u003e\n\u003ctd\u003e1.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e67 × 1.8 mm\u003c\/td\u003e\n\u003ctd\u003e67\u003c\/td\u003e\n\u003ctd\u003e1.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e76 × 1.8 mm\u003c\/td\u003e\n\u003ctd\u003e76\u003c\/td\u003e\n\u003ctd\u003e1.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e80 × 2.2 mm\u003c\/td\u003e\n\u003ctd\u003e80\u003c\/td\u003e\n\u003ctd\u003e2.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e89 × 2.3 mm\u003c\/td\u003e\n\u003ctd\u003e89\u003c\/td\u003e\n\u003ctd\u003e2.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e108 × 2.4 mm\u003c\/td\u003e\n\u003ctd\u003e108\u003c\/td\u003e\n\u003ctd\u003e2.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e133 × 3.0 mm\u003c\/td\u003e\n\u003ctd\u003e133\u003c\/td\u003e\n\u003ctd\u003e3.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eAll measurements are in millimeters. The first number identifies the listed connection size, and the second identifies the wall thickness. These values do not indicate the coupling’s overall length or socket depth.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRefrigeration and air-conditioning copper pipework.\u003c\/li\u003e\n\u003cli\u003eCold room and commercial refrigeration installations.\u003c\/li\u003e\n\u003cli\u003eStraight connections between copper tubes of the same size.\u003c\/li\u003e\n\u003cli\u003ePipe extensions and replacement of matching inline fittings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eChoosing the Correct Coupling\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSelect the exact connection size and wall thickness required by your piping specification. Sizes such as 15.88 and 16 mm, 22 and 22.23 mm, 41.28 and 42 mm, or 50 and 51 mm are separate variants and should not be treated as interchangeable without checking the fit.\u003c\/p\u003e\n\u003cp\u003eConfirm socket fit, insertion depth and overall length for the selected coupling, especially when working between fixed pipe ends. This standard-wall range uses different wall thicknesses according to size; refer to the table for the individual specification.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eHave a qualified installer confirm the jointing method and suitability for the system’s pressure, temperature and refrigerant. Prepare and join the tubing according to the installation procedure, then test the completed pipework before commissioning.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRequest a Quote\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSend your required size × wall thickness, quantity and delivery destination. Include any overall length, socket depth or installation requirements so the correct coupling can be checked.\u003c\/p\u003e","brand":"HENGSEN","offers":[{"title":"6.35 × 0.8 mm","offer_id":44263981547579,"sku":null,"price":1.0,"currency_code":"USD","in_stock":true},{"title":"8 × 0.9 mm","offer_id":44263981580347,"sku":null,"price":1.0,"currency_code":"USD","in_stock":true},{"title":"10 × 0.9 mm","offer_id":44263981613115,"sku":null,"price":1.0,"currency_code":"USD","in_stock":true},{"title":"12 × 0.9 mm","offer_id":44263981645883,"sku":null,"price":1.0,"currency_code":"USD","in_stock":true},{"title":"12.7 × 0.9 mm","offer_id":44263981678651,"sku":null,"price":1.0,"currency_code":"USD","in_stock":true},{"title":"15.88 × 0.9 mm","offer_id":44263981711419,"sku":null,"price":1.0,"currency_code":"USD","in_stock":true},{"title":"16 × 0.9 mm","offer_id":44263981744187,"sku":null,"price":1.0,"currency_code":"USD","in_stock":true},{"title":"19 × 0.9 mm","offer_id":44263981776955,"sku":null,"price":1.0,"currency_code":"USD","in_stock":true},{"title":"22 × 1.0 mm","offer_id":44263981809723,"sku":null,"price":1.0,"currency_code":"USD","in_stock":true},{"title":"22.23 × 1.0 mm","offer_id":44263981842491,"sku":null,"price":1.0,"currency_code":"USD","in_stock":true},{"title":"25 × 1.0 mm","offer_id":44263981875259,"sku":null,"price":1.0,"currency_code":"USD","in_stock":true},{"title":"25.4 × 1.0 mm","offer_id":44263981908027,"sku":null,"price":1.0,"currency_code":"USD","in_stock":true},{"title":"28 × 1.0 mm","offer_id":44263981940795,"sku":null,"price":2.0,"currency_code":"USD","in_stock":true},{"title":"28.58 × 1.0 mm","offer_id":44263981973563,"sku":null,"price":2.0,"currency_code":"USD","in_stock":true},{"title":"32 × 1.3 mm","offer_id":44263982006331,"sku":null,"price":2.0,"currency_code":"USD","in_stock":true},{"title":"35 × 1.3 mm","offer_id":44263982039099,"sku":null,"price":2.0,"currency_code":"USD","in_stock":true},{"title":"38 × 1.4 mm","offer_id":44263982071867,"sku":null,"price":3.0,"currency_code":"USD","in_stock":true},{"title":"41.28 × 1.4 mm","offer_id":44263982104635,"sku":null,"price":3.0,"currency_code":"USD","in_stock":true},{"title":"42 × 1.4 mm","offer_id":44263982137403,"sku":null,"price":3.0,"currency_code":"USD","in_stock":true},{"title":"45 × 1.5 mm","offer_id":44263982170171,"sku":null,"price":4.0,"currency_code":"USD","in_stock":true},{"title":"50 × 1.7 mm","offer_id":44263982202939,"sku":null,"price":5.0,"currency_code":"USD","in_stock":true},{"title":"51 × 1.7 mm","offer_id":44263982235707,"sku":null,"price":5.0,"currency_code":"USD","in_stock":true},{"title":"54 × 1.8 mm","offer_id":44263982268475,"sku":null,"price":6.0,"currency_code":"USD","in_stock":true},{"title":"67 × 1.8 mm","offer_id":44263982301243,"sku":null,"price":7.0,"currency_code":"USD","in_stock":true},{"title":"76 × 1.8 mm","offer_id":44263982334011,"sku":null,"price":9.0,"currency_code":"USD","in_stock":true},{"title":"80 × 2.2 mm","offer_id":44263982366779,"sku":null,"price":12.0,"currency_code":"USD","in_stock":true},{"title":"89 × 2.3 mm","offer_id":44263982399547,"sku":null,"price":15.0,"currency_code":"USD","in_stock":true},{"title":"108 × 2.4 mm","offer_id":44263982432315,"sku":null,"price":23.0,"currency_code":"USD","in_stock":true},{"title":"133 × 3.0 mm","offer_id":44263982465083,"sku":null,"price":46.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/8920\/8123\/files\/Codex_2026_9_22_14_24_41.png?v=1790058347","url":"https:\/\/xiaxuecoldroom.com\/products\/hengsen-standard-wall-copper-straight-couplings","provider":"XIAXUE Refrigeration","version":"1.0","type":"link"}