{"product_id":"raccord-union-inox-femelle-femelle-316l-pn40","title":"Stainless steel union, female\/female 316L, PN 40, BSP threaded","description":"\u003cp\u003e\u003cstrong\u003eStainless steel union, female\/female 316L, PN 40\u003c\/strong\u003e, tapped \u003cstrong\u003eBSP\u003c\/strong\u003e (Rp to ISO 7-1) at both ends, from 1\/2\" to 2\" (DN15 to DN50). This machined conical (taper) seat union provides a point of disconnection on threaded pipework. PN 40, drinking water compliant, for all fluids compatible with stainless steel.\u003c\/p\u003e\n\u003ch2\u003eDescription of the machined stainless steel union 316L PN 40\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003e3-piece stainless steel union\u003c\/strong\u003e consists of two \u003cstrong\u003e316L\u003c\/strong\u003e stainless steel ends and a \u003cstrong\u003eCF8M\u003c\/strong\u003e stainless steel nut. 316L is the low-carbon version of 316. At the conical seat, the seal is metal to metal between the two ends. Undoing the nut opens the joint without unscrewing the connected pipework.\u003c\/p\u003e\n\u003cp\u003eOne end is 6-sided; the other is cylindrical on the outside, with spanner flats. \u003cstrong\u003eBoth ends are Rp tapped\u003c\/strong\u003e: the cylindrical side is not a weld end.\u003c\/p\u003e\n\u003cp\u003eDoes your working pressure stay within the PN 20 limits? See the \u003ca href=\"\/products\/stainless-steel-union-female-female-316-pn20\"\u003estainless steel union 316 PN 20\u003c\/a\u003e, from 1\/4\" to 4\".\u003c\/p\u003e\n\u003ch3\u003eStainless steel union 316L PN 40: technical specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch;margin:.8em 0\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;font-size:.92rem;margin:0\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd style=\"border:1px solid #ddd;padding:8px 12px;font-weight:700;text-align:left;background:#f5f0e6;white-space:nowrap\"\u003eMaterial\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:8px 12px;text-align:left\"\u003e316L stainless steel ends, CF8M stainless steel nut\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd style=\"border:1px solid #ddd;padding:8px 12px;font-weight:700;text-align:left;background:#f5f0e6;white-space:nowrap\"\u003eManufacture\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:8px 12px;text-align:left\"\u003eMachined conical (taper) seat union\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd style=\"border:1px solid #ddd;padding:8px 12px;font-weight:700;text-align:left;background:#f5f0e6;white-space:nowrap\"\u003eStandard\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:8px 12px;text-align:left\"\u003eISO 4144\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd style=\"border:1px solid #ddd;padding:8px 12px;font-weight:700;text-align:left;background:#f5f0e6;white-space:nowrap\"\u003eType\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:8px 12px;text-align:left\"\u003e3-piece: two ends and a nut\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd style=\"border:1px solid #ddd;padding:8px 12px;font-weight:700;text-align:left;background:#f5f0e6;white-space:nowrap\"\u003eSeal at the seat\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:8px 12px;text-align:left\"\u003eMetal to metal\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd style=\"border:1px solid #ddd;padding:8px 12px;font-weight:700;text-align:left;background:#f5f0e6;white-space:nowrap\"\u003eShape\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:8px 12px;text-align:left\"\u003eOne end 6-sided, the other cylindrical with spanner flats\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd style=\"border:1px solid #ddd;padding:8px 12px;font-weight:700;text-align:left;background:#f5f0e6;white-space:nowrap\"\u003eThread\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:8px 12px;text-align:left\"\u003eRp tapped (parallel) at both ends, to ISO 7-1 (BSP). Mates with an R male thread (taper). Not compatible with NPT\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd style=\"border:1px solid #ddd;padding:8px 12px;font-weight:700;text-align:left;background:#f5f0e6;white-space:nowrap\"\u003eConnection\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:8px 12px;text-align:left\"\u003eFemale\/female\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd style=\"border:1px solid #ddd;padding:8px 12px;font-weight:700;text-align:left;background:#f5f0e6;white-space:nowrap\"\u003eNominal pressure\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:8px 12px;text-align:left\"\u003ePN 40. Permissible pressure falls as temperature rises\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd style=\"border:1px solid #ddd;padding:8px 12px;font-weight:700;text-align:left;background:#f5f0e6;white-space:nowrap\"\u003eTemperature\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:8px 12px;text-align:left\"\u003eStated range −20\/+220 °C, with no high-temperature pressure values: consult us for hot applications\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd style=\"border:1px solid #ddd;padding:8px 12px;font-weight:700;text-align:left;background:#f5f0e6;white-space:nowrap\"\u003eFluids\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:8px 12px;text-align:left\"\u003eAll fluids compatible with stainless steel\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd style=\"border:1px solid #ddd;padding:8px 12px;font-weight:700;text-align:left;background:#f5f0e6;white-space:nowrap\"\u003eSizes\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:8px 12px;text-align:left\"\u003e6 sizes, from 1\/2\" to 2\"\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd style=\"border:1px solid #ddd;padding:8px 12px;font-weight:700;text-align:left;background:#f5f0e6;white-space:nowrap\"\u003eCompliance\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:8px 12px;text-align:left\"\u003e4MS; drinking water: French order of 25 June 2020\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003ch3\u003ePressure and temperature\u003c\/h3\u003e\n\u003cp\u003eThis union is rated \u003cstrong\u003ePN 40\u003c\/strong\u003e. The permissible pressure falls as temperature rises, and we have no high-temperature pressure curve for this part. The stated range of −20 to +220 °C therefore does not mean PN 40 across the whole range. For hot applications, \u003ca href=\"\/pages\/contact\"\u003econtact us\u003c\/a\u003e before choosing.\u003c\/p\u003e\n\u003ch3\u003eCertification and compliance\u003c\/h3\u003e\u003cp\u003eAccording to the technical data sheet for the series:\u003c\/p\u003e\u003cul\u003e\u003cli\u003e\u003cstrong\u003e4MS\u003c\/strong\u003e: compliant with the 4MS requirements, the harmonized European rules for materials and products in contact with drinking water.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eDrinking water\u003c\/strong\u003e: compliant with the French order (arrêté) of 25 June 2020 on metallic materials and products in contact with water intended for human consumption.\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eUses and installation advice\u003c\/h3\u003e\n\u003cp\u003eThis union is used on drinking water systems and on circuits carrying fluids compatible with stainless steel, wherever a component must stay removable. Check the fluid’s compatibility with 316L and CF8M.\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003e\u003cstrong\u003eThread sealing\u003c\/strong\u003e: an Rp\/R joint seals on the threads, using PTFE or jointing compound suited to the fluid and the working temperature.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eConical seat\u003c\/strong\u003e: it seals metal to metal. Keep it clean on assembly and at every reassembly.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eGalling\u003c\/strong\u003e: with stainless steel on stainless steel, the thread can gall. Screw in gradually, without forcing.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eTightening\u003c\/strong\u003e: hold the end with an open-ended or adjustable spanner on its hexagon or spanner flats and tighten the nut the same way, not with pipe grips or pliers, which mark stainless steel.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eDissimilar metals\u003c\/strong\u003e: on a water system, stainless steel forms a galvanic couple with galvanized steel or cast iron. Allow for this when choosing the connected components.\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eTechnical drawing\u003c\/h3\u003e\n\u003cfigure style=\"margin:1.2em 0;text-align:center;padding:0\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2439\/6099\/files\/dessin-technique-raccord-union-inox-femelle-femelle-pn40-bsp.png\" alt=\"Technical drawing of the stainless steel female\/female BSP threaded 316L union PN 40, dimensions M1, M2 and L\" loading=\"lazy\" decoding=\"async\" width=\"1178\" height=\"1115\" fetchpriority=\"low\" style=\"max-width:100%;height:auto;display:block;margin:0 auto;border:1px solid #eee;border-radius:4px;background:#fff\"\u003e\u003cfigcaption style=\"font-size:.85rem;color:#666;margin-top:.4em;font-style:italic\"\u003eDimensioned drawing – dimensions in millimetres\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003ch3\u003eDimensions (mm)\u003c\/h3\u003e\n\u003cp\u003eDimensions in millimetres, PN in bar, weight in kilograms.\u003c\/p\u003e\n\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch;margin:.8em 0\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;font-size:.88rem;margin:0\"\u003e\u003cthead\u003e\u003ctr\u003e\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap;background:#f5f0e6;font-weight:700\"\u003eRp size\u003c\/th\u003e\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap;background:#f5f0e6;font-weight:700\"\u003eFrench size\u003c\/th\u003e\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap;background:#f5f0e6;font-weight:700\"\u003eM1\u003c\/th\u003e\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap;background:#f5f0e6;font-weight:700\"\u003eM2\u003c\/th\u003e\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap;background:#f5f0e6;font-weight:700\"\u003eL\u003c\/th\u003e\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap;background:#f5f0e6;font-weight:700\"\u003ePN (bar)\u003c\/th\u003e\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap;background:#f5f0e6;font-weight:700\"\u003eWeight (kg)\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e1\/2\"\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e15x21\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e16\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e9\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e37\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e40\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e0.151\u003c\/td\u003e\u003c\/tr\u003e\u003ctr style=\"background:#fafafa\"\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e3\/4\"\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e20x27\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e17\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e9\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e38\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e40\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e0.194\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e1\"\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e26x34\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e18\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e9\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e44\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e40\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e0.332\u003c\/td\u003e\u003c\/tr\u003e\u003ctr style=\"background:#fafafa\"\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e1\"1\/4\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e33x42\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e18\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e10\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e46\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e40\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e0.410\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e1\"1\/2\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e40x49\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e18\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e10\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e50.5\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e40\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e0.768\u003c\/td\u003e\u003c\/tr\u003e\u003ctr style=\"background:#fafafa\"\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e2\"\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e50x60\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e20\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e12\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e54\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e40\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e0.964\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003ch3\u003eSize conversion\u003c\/h3\u003e\n\u003cp\u003eConversion between the French size designation, inches, DN and the outside diameter stated in the designation (a rounded value, not a pipe dimension).\u003c\/p\u003e\n\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch;margin:.8em 0\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;font-size:.88rem;margin:0\"\u003e\u003cthead\u003e\u003ctr\u003e\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap;background:#f5f0e6;font-weight:700\"\u003eFrench size\u003c\/th\u003e\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap;background:#f5f0e6;font-weight:700\"\u003e15x21\u003c\/th\u003e\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap;background:#f5f0e6;font-weight:700\"\u003e20x27\u003c\/th\u003e\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap;background:#f5f0e6;font-weight:700\"\u003e26x34\u003c\/th\u003e\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap;background:#f5f0e6;font-weight:700\"\u003e33x42\u003c\/th\u003e\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap;background:#f5f0e6;font-weight:700\"\u003e40x49\u003c\/th\u003e\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap;background:#f5f0e6;font-weight:700\"\u003e50x60\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap;font-weight:700\"\u003eInches\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e1\/2\"\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e3\/4\"\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e1\"\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e1\"1\/4\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e1\"1\/2\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e2\"\u003c\/td\u003e\u003c\/tr\u003e\u003ctr style=\"background:#fafafa\"\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap;font-weight:700\"\u003eDN\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003eDN15\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003eDN20\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003eDN25\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003eDN32\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003eDN40\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003eDN50\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap;font-weight:700\"\u003eOD (French size)\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e21 mm\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e27 mm\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e34 mm\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e42 mm\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e49 mm\u003c\/td\u003e\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;text-align:center;white-space:nowrap\"\u003e60 mm\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003ch3\u003eStainless steel union 316L PN 40: frequently asked questions\u003c\/h3\u003e\n\u003ch4\u003ePN 40 or PN 20?\u003c\/h4\u003e\u003cp\u003eThe choice depends on the working pressure at the working temperature. A PN 20 union is not suitable if your installation requires PN 40. The \u003ca href=\"\/products\/stainless-steel-union-female-female-316-pn20\"\u003ePN 20 union\u003c\/a\u003e covers 1\/4\" to 4\", with published high-temperature values. This PN 40 union covers 1\/2\" to 2\".\u003c\/p\u003e\n\u003ch4\u003eWhat is the pressure rating at high temperature?\u003c\/h4\u003e\u003cp\u003eWe have no figure for this part. The permissible pressure falls as temperature rises. \u003ca href=\"\/pages\/contact\"\u003eContact us\u003c\/a\u003e with the size, fluid, temperature and working pressure.\u003c\/p\u003e\n\u003ch4\u003eIs the cylindrical side a weld end?\u003c\/h4\u003e\u003cp\u003eNo. Both ends are Rp tapped. This side is simply cylindrical on the outside, with spanner flats.\u003c\/p\u003e\n\u003ch4\u003eBSP or NPT thread?\u003c\/h4\u003e\u003cp\u003eBSP to ISO 7-1: Rp parallel tapped thread, for use with an R taper male thread. This union is not compatible with NPT.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe appearance of the part may vary depending on the batch in stock. \u003ca href=\"\/pages\/contact\"\u003eContact us\u003c\/a\u003e for confirmation.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eSee also\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eFull range:\u003c\/strong\u003e \u003ca href=\"\/collections\/stainless-steel-bsp-pipe-fittings\"\u003eall stainless steel BSP fittings\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOther stainless steel fittings:\u003c\/strong\u003e \u003ca href=\"\/products\/stainless-steel-union-female-female-316-pn20\"\u003estainless steel union 316 PN 20\u003c\/a\u003e, \u003ca href=\"\/products\/stainless-steel-90-degree-elbow-female-female-316\"\u003estainless steel 90° female\/female elbow\u003c\/a\u003e, \u003ca href=\"\/products\/stainless-steel-coupling-female-female-316\"\u003estainless steel female\/female coupling\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOther materials:\u003c\/strong\u003e \u003ca href=\"\/collections\/brass-fittings\"\u003ebrass fittings\u003c\/a\u003e, \u003ca href=\"\/collections\/black-unions\"\u003eblack malleable iron unions\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUseful guides:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"\/blogs\/tutorials-1\/plumbing-threads-guide-complete-bspt-bspp-npt\"\u003eGuide to plumbing threads\u003c\/a\u003e\u003c\/li\u003e\u003cli\u003e\u003ca href=\"\/blogs\/tutorials-1\/how-to-screw-threaded-plumbing-fittings-and-pipes\"\u003eHow to screw fittings and pipes together\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e","brand":"Home Invasion","offers":[{"title":"1\/2\"","offer_id":55695974793543,"sku":"8004400001500","price":45.0,"currency_code":"USD","in_stock":true},{"title":"3\/4\"","offer_id":55695974826311,"sku":"8004400002000","price":53.0,"currency_code":"USD","in_stock":true},{"title":"1\"","offer_id":55695974859079,"sku":"8004400002600","price":78.0,"currency_code":"USD","in_stock":true},{"title":"1\"1\/4","offer_id":55695974891847,"sku":"8004400003300","price":85.0,"currency_code":"USD","in_stock":true},{"title":"1\"1\/2","offer_id":55695974924615,"sku":"8004400004000","price":125.0,"currency_code":"USD","in_stock":true},{"title":"2\"","offer_id":55695974957383,"sku":"8004400005000","price":163.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2439\/6099\/files\/raccord-union-inox-femelle-femelle-316l-pn40-bsp-1.jpg?v=1793771635","url":"https:\/\/home-invasion.com\/products\/stainless-steel-union-female-female-316l-pn40","provider":"Home Invasion","version":"1.0","type":"link"}