{"title":"CF Vacuum Hardware","description":"","products":[{"product_id":"cf-fixed-blank-flanges-in-304l-stainless-steel","title":"CF fixed blank flanges in 304L stainless steel","description":"\u003cp\u003eCF fixed blank flanges in 304L stainless steel.\u003c\/p\u003e","brand":"4VISA","offers":[{"title":"CF16 (NW16) 34mm diameter; 27mm PCD; 21mm gasket recess; 4.3mm bolt hole (x6)","offer_id":55308308513093,"sku":"1","price":7.12,"currency_code":"GBP","in_stock":true},{"title":"CF35 (NW35) 70mm diameter; 58mm PCD; 48mm gasket recess; 6.7mm bolt hole (x6)","offer_id":55308308545861,"sku":"1","price":8.84,"currency_code":"GBP","in_stock":true},{"title":"CF63 (NW63) 114mm diameter; 92mm PCD; 82mm gasket recess; 8.3mm bolt hole (x8)","offer_id":55308308578629,"sku":"1","price":33.58,"currency_code":"GBP","in_stock":true},{"title":"CF100 (NW100) 152mm diameter; 130mm PCD; 120mm gasket recess; 8.3mm bolt hole (x16)","offer_id":55308310610245,"sku":"1","price":48.79,"currency_code":"GBP","in_stock":true},{"title":"CF150 (NW150) 203mm diameter; 181mm PCD; 171mm gasket recess; 8.3mm bolt hole (x20)","offer_id":55308330041669,"sku":"1","price":74.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0937\/3492\/8709\/files\/F16.png?v=1754333666"},{"product_id":"el35r","title":"EL35R CF35 90 deg SS rotatable elbow","description":"\u003cp\u003eCF35 90 degree mitred stainless steel (304L) rotatable elbow.\u003c\/p\u003e\n\u003cp\u003e38mm throughbore.\u003c\/p\u003e\n\u003cp\u003e63mm from flange face to centre of adjacent flange.\u003c\/p\u003e","brand":"4VISA","offers":[{"title":"Default Title","offer_id":56542247551301,"sku":"1","price":75.17,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0937\/3492\/8709\/files\/EL35R.png?v=1764794704"},{"product_id":"cf-fixed-bored-double-sided-flanges-in-304l-stainless-steel","title":"CF fixed bored double-sided flanges in 304L stainless steel","description":"\u003cp\u003eCF fixed bored double-sided flanges in 304L stainless steel.\u003c\/p\u003e","brand":"4VISA","offers":[{"title":"CF35 (NW35) 70mm diameter; 38mm bore; 12.7mm thick; 58mm PCD; 48mm gasket recess; 6 x 6.7mm bolt holes (partcode F35D38)","offer_id":57697732428101,"sku":"1","price":24.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0937\/3492\/8709\/files\/F35D38_904982cf-5c24-441a-bcd2-cf4dcfcdbd20.png?v=1776284921"},{"product_id":"el35r-cf35-90-deg-ss-rotatable-elbow-copy","title":"KA3525 CF35 to NW25 stainless steel adaptor","description":"\u003cp\u003eKA3525 CF35 to NW25 (KF25) stainless steel adaptor.\u003c\/p\u003e\n\u003cp\u003e24mm throughbore.\u003c\/p\u003e\n\u003cp\u003e36mm overall length.\u003c\/p\u003e","brand":"4VISA","offers":[{"title":"Default Title","offer_id":57697756578117,"sku":"1","price":39.64,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0937\/3492\/8709\/files\/ka3525.png?v=1776285514"},{"product_id":"iso63fx25-iso63k-flexible-hose-copy","title":"DN16CF Edge-Welded Bellows","description":"\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eMaterial: 304L Flanges \/ 316L Bellows\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eExcellent corrosion resistance. Not recommended for use with hydrochlorides or halides.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eHelium (He) Leak Rate \u0026lt;1x10^-10 mbar L\/s\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eRated for UHV\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003e10,000 cycles service life\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003e2x DN16CF Rotatable Flange with Clearance Bolt Holes\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eLength: 110mm-375mm.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eAxial stroke: 265mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eMin ID: 16mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eMax OD: 34mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eOperational Temperature: 20°C\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eMax Bakeout: 80°C\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003e--------\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eEdge-welded bellows are used to provide \u003cb\u003eflexible, leak-tight motion \u003c\/b\u003ein demanding vacuum and pressure environments. They are particularly suited to \u003cb\u003eultra-high vacuum (UHV) systems\u003c\/b\u003e where minimal outgassing, high cleanliness, and long fatigue life are essential. Typical applications include linear motion feedthroughs, thermal expansion compensation, vibration isolation, pressure boundary sealing, and alignment mechanisms in vacuum chambers.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eThese bellows are manufactured from \u003cb\u003eprecision-stamped AISI 316L diaphragms\u003c\/b\u003e, edge-welded to form a robust yet highly flexible assembly. They are also fitted with \u003cb\u003eAISI 304L rotatable CF16 flanges (clearance bolt holes)\u003c\/b\u003e and incorporate \u003cb\u003einternal AISI 304 support rings\u003c\/b\u003e, allowing the use of a \u003cb\u003ecentral shaft up to Ø15 mm\u003c\/b\u003e while maintaining stability and preventing buckling under vacuum or differential pressure.\u003cb\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eThe use of 300 series low-carbon stainless steels ensures \u003cb\u003eexcellent corrosion resistance and weld integrity\u003c\/b\u003e, as well as low magnetic permeability and suitability for clean vacuum environments. However, these bellows are not recommended for use with hydrochlorides or halides.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eAll bellows are \u003cb\u003esupplied UHV-clean\u003c\/b\u003e, with plastic protective caps fitted to the flanges and sealed in a clean bag to prevent contamination prior to installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eKey Features\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cul style=\"margin-top: 0cm;\" type=\"disc\"\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo1; tab-stops: list 36.0pt;\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eEdge-welded construction for high flexibility and long cycle life\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo1; tab-stops: list 36.0pt;\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eSuitable for ultra-high vacuum (UHV) and high-purity applications\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo1; tab-stops: list 36.0pt;\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eInternal support rings for guided shafts up to Ø15 mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo1; tab-stops: list 36.0pt;\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eExcellent corrosion resistance (material-dependent)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo1; tab-stops: list 36.0pt;\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eLow outgassing, vacuum-compatible materials\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l0 level1 lfo1; tab-stops: list 36.0pt;\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eSupplied clean, capped, and sealed for immediate use\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eTypical Applications\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cul style=\"margin-top: 0cm;\" type=\"disc\"\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l3 level1 lfo2; tab-stops: list 36.0pt;\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eUHV linear and rotary motion systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l3 level1 lfo2; tab-stops: list 36.0pt;\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eVacuum feedthroughs and manipulators\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l3 level1 lfo2; tab-stops: list 36.0pt;\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eThermal expansion compensation in vacuum lines\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l3 level1 lfo2; tab-stops: list 36.0pt;\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003ePrecision instrumentation and research equipment\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l3 level1 lfo2; tab-stops: list 36.0pt;\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eSemiconductor, surface science, and accelerator systems\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003e--------\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eMaterials Available\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eBellows can be supplied in the following materials to suit specific mechanical, thermal, or corrosion requirements:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul style=\"margin-top: 0cm;\" type=\"disc\"\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l1 level1 lfo3; tab-stops: list 36.0pt;\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eAISI 304L\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l1 level1 lfo3; tab-stops: list 36.0pt;\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eAISI 316L\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l1 level1 lfo3; tab-stops: list 36.0pt;\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eAM350\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l1 level1 lfo3; tab-stops: list 36.0pt;\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eInconel® 625\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l1 level1 lfo3; tab-stops: list 36.0pt;\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eInconel® 718\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l1 level1 lfo3; tab-stops: list 36.0pt;\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eHastelloy® C-276\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eSizes and Availability\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cul style=\"margin-top: 0cm;\" type=\"disc\"\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l2 level1 lfo4; tab-stops: list 36.0pt;\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eVarious \u003cb\u003eflange sizes (nominal bores)\u003c\/b\u003e and \u003cb\u003eoverall lengths\u003c\/b\u003e are available\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l2 level1 lfo4; tab-stops: list 36.0pt;\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eCustom configurations available on request\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-list: l2 level1 lfo4; tab-stops: list 36.0pt;\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003eItems not held in stock we can typically supply within \u003cb\u003e6 weeks\u003c\/b\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: 'DIN Next LT Arabic Medium',sans-serif;\"\u003ePlease \u003cb\u003eenquire for availability, custom dimensions, or material options\u003c\/b\u003e, and our technical team will be happy to assist with selection for your application.\u003c\/span\u003e\u003c\/p\u003e","brand":"4VISA","offers":[{"title":"Default Title","offer_id":57769065840965,"sku":"1","price":1200.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0937\/3492\/8709\/files\/ISO63FX25.png?v=1764795802"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0937\/3492\/8709\/collections\/F35D38_904982cf-5c24-441a-bcd2-cf4dcfcdbd20.png?v=1781288144","url":"https:\/\/www.4visa.co.uk\/collections\/cf-vacuum-hardware.oembed","provider":"4VISA","version":"1.0","type":"link"}