{"product_id":"la-marzocco-o-ring-2-62x12-37-ptfe-kugelkopf-dampfventil","title":"La Marzocco O-ring PTFE 2.62 × 12.37 mm – steam valve ball head","description":"\u003cdiv class=\"ccc-mobile-wrapper\"\u003e\n\u003cstyle\u003e.ccc-mobile-wrapper{max-width:880px;margin:0 auto;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;color:#1d1d1f;line-height:1.65;font-size:17px}.ccc-mobile-wrapper h2{font-size:1.7em;line-height:1.25;margin:0 0 .6em;font-weight:700}.ccc-mobile-wrapper h3{font-size:1.3em;line-height:1.3;margin:1.8em 0 .5em;font-weight:700}.ccc-mobile-wrapper h4{font-size:1.05em;margin:1.1em 0 .2em}.ccc-mobile-wrapper p{margin:0 0 1em}.ccc-mobile-wrapper a{color:#0b6b5f;text-decoration:underline}.ccc-compare-table{width:100%;border-collapse:collapse;margin:1em 0;font-size:.97em}.ccc-compare-table th,.ccc-compare-table td{text-align:left;padding:10px 12px;border-bottom:1px solid #e3e3e6;vertical-align:top}.ccc-compare-table th{width:42%;font-weight:600;color:#3a3a3c}.ccc-roastery-tip{background:#eff6f4;border-left:4px solid #0b6b5f;border-radius:10px;padding:16px 18px;margin:1.6em 0}.ccc-return-note{background:#fdf3ef;border-left:4px solid #b4532a;border-radius:10px;padding:16px 18px;margin:1.6em 0}.ccc-faq h4{font-weight:700;margin:1.2em 0 .2em}@media(max-width:600px){.ccc-mobile-wrapper{font-size:16px}.ccc-mobile-wrapper h2{font-size:1.45em}.ccc-mobile-wrapper h3{font-size:1.18em}}\u003c\/style\u003e\n\u003ch2\u003ePTFE at the hottest point: the seal on the steam valve ball head\u003c\/h2\u003e\n\u003cp\u003eA steam valve is opened, closed, opened again – hundreds of times a week, and at steam temperature. This is exactly where the ball head sits, and it needs a seal that can do two things at once: seal and glide. Rubber would drag here and burn out quickly. PTFE does both better: it is unaffected by heat and glides without sticking.\u003c\/p\u003e\n\u003cp\u003eThe price for this is stiffness. PTFE doesn't deform like a rubber ring; it takes on its shape permanently. That's why a PTFE ring that has been installed once is no longer a usable spare part when it comes to reassembly – it no longer seals the way it should. If you open the valve, plan for this ring as well.\u003c\/p\u003e\n\u003ch3\u003eWhen it's due\u003c\/h3\u003e\n\u003cp\u003eThe steam valve drips or hisses even when fully closed. The steam tap turns unpleasantly stiffly or noticeably loosely. A limescale trace shows at the valve outlet. Or the valve is being overhauled anyway – in which case this ring belongs on the parts list.\u003c\/p\u003e\n\u003ch3\u003eAt a glance\u003c\/h3\u003e\n\u003ctable class=\"ccc-compare-table\"\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003ePTFE O-ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLocation\u003c\/th\u003e\n\u003ctd\u003eBall head of the steam valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003ctd\u003eOrder by part number; our documentation does not name a specific model\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eScope of delivery\u003c\/th\u003e\n\u003ctd\u003e1 O-ring, without ball head and without valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eH.1.044\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVersion\u003c\/th\u003e\n\u003ctd\u003eCross-section 2.62 mm, inner diameter 12.37 mm, PTFE. According to the documentation, replaces the older part H.1.003\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInstallation\u003c\/th\u003e\n\u003ctd\u003eInstallation by a qualified technician recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eLa Marzocco\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eImportant for installation\u003c\/h3\u003e\n\u003cp\u003eA steam valve carries steam under pressure – the machine must have cooled down and be depressurised before any work is done on it. We deliberately don't give step-by-step instructions here. PTFE rings should never be forced over edges: they tend to tear rather than give. After installation, the valve is operated several times and checked for leaks during operation. If you're unsure, this job belongs in a workshop.\u003c\/p\u003e\n\u003ch3\u003eWho it's for\u003c\/h3\u003e\n\u003cp\u003eFor service companies that overhaul steam valves, and for cafés where the steam tap is the most-used part of the machine. Anyone who has dealt with a dripping steam valve knows you can't just sit it out – it never gets better, only louder.\u003c\/p\u003e\n\u003ch3\u003eWhat goes with it\u003c\/h3\u003e\n\u003cp\u003eWe continue to stock the predecessor part as the \u003ca href=\"\/en\/products\/la-marzocco-o-ring-2-62x13-1-kugelkopf-dampfventil\"\u003eO-ring 2.62 × 13.1 mm for the steam valve ball head\u003c\/a\u003e – compare the number in your documentation before ordering. Complete assemblies are the \u003ca href=\"\/en\/products\/la-marzocco-dampfventil-kb90-e16-h15\"\u003eKB90 steam valve in version E16 H15\u003c\/a\u003e and the \u003ca href=\"\/en\/products\/la-marzocco-dampf-armatur-komplett-gb5\"\u003ecomplete steam assembly for the GB5\u003c\/a\u003e. More seals can be found in the \u003ca href=\"\/en\/collections\/serviceteile\"\u003eOriginal spare parts\u003c\/a\u003e section.\u003c\/p\u003e\n\u003cdiv class=\"ccc-roastery-tip\"\u003e\u003cp\u003e\u003cstrong\u003eFrom our workshop in Bern and Zurich:\u003c\/strong\u003e We briefly warm PTFE rings in warm water before fitting them. This makes them a little more pliable, so they can be slid over the edge instead of tearing. And after reassembly we operate the valve a dozen times before applying pressure – this lets the ring settle evenly. This is our own routine, not a manufacturer requirement. Once the steam tap closes cleanly again, our cappuccino test is done with \u003ca href=\"\/en\/products\/nutty-delight-kaffee-blend-brasilien-indien\"\u003eNutty Delight\u003c\/a\u003e, which works particularly well with milk. Alternatively \u003ca href=\"\/en\/products\/cozy-chocolate-natural-brasilien-kaffeebohnen\"\u003eCozy Chocolate\u003c\/a\u003e; everything else is in \u003ca href=\"\/en\/collections\/kaffeebohnen\"\u003eCoffee beans\u003c\/a\u003e.\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv class=\"ccc-return-note\"\u003e\u003cp\u003e\u003cstrong\u003eNo returns\u003c\/strong\u003e\u003cbr\u003eOriginal spare parts are excluded from exchange and return. They are sourced specifically for each order and cannot be resold once they have been installed or test-fitted on a machine. So before ordering, check your machine's model, year of manufacture and serial number – or drop us a quick message and we'll clarify the fit together. Your rights in the case of defective goods remain unaffected.\u003c\/p\u003e\u003c\/div\u003e\n\u003cdiv class=\"ccc-faq\"\u003e\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003ch4\u003e\u003cstrong\u003eIs this the successor to H.1.003?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eAccording to our documentation, this part replaces the older number H.1.003. We continue to stock the old part separately. Before ordering, compare which number appears in your service documentation.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCan I use a rubber ring instead?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eNot in this position. PTFE was chosen here because of the temperature and its sliding properties. A rubber ring drags, hardens and fails sooner.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eIs the valve included?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eNo. Only the O-ring is supplied, without ball head and without valve.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eMy steam tap drips. Is the ring enough?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eOften, yes. If the valve seat is damaged by limescale, more is needed. Send us a photo or bring the valve in, and we'll tell you honestly what it needs.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCan I see the part at your place?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eYes. Come to our showroom in Bern at Gerberngasse 44 or in Zurich at Hagenholzstrasse 50b. Bring the old ring with you and we'll compare it directly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003eNot sure which of the two numbers you need? Write to us at \u003ca href=\"mailto:office@coffeecoachingclub.ch\"\u003eoffice@coffeecoachingclub.ch\u003c\/a\u003e. We deliver across Switzerland and to Liechtenstein in 2-4 working days.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Is this the successor to H.1.003?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"According to our documentation, this part replaces the older number H.1.003. We continue to stock the old part separately. Before ordering, compare which number appears in your service documentation.\"}},{\"@type\":\"Question\",\"name\":\"Can I use a rubber ring instead?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Not in this position. PTFE was chosen here because of the temperature and its sliding properties. A rubber ring drags, hardens and fails sooner.\"}},{\"@type\":\"Question\",\"name\":\"Is the valve included?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. Only the O-ring is supplied, without ball head and without valve.\"}},{\"@type\":\"Question\",\"name\":\"My steam tap drips. Is the ring enough?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Often, yes. If the valve seat is damaged by limescale, more is needed. Send us a photo or bring the valve in, and we'll tell you honestly what it needs.\"}},{\"@type\":\"Question\",\"name\":\"Can I see the part at your place?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. Come to our showroom in Bern at Gerberngasse 44 or in Zurich at Hagenholzstrasse 50b. Bring the old ring with you and we'll compare it directly.\"}}]}\u003c\/script\u003e\n\u003c\/div\u003e","brand":"La Marzocco","offers":[{"title":"Default Title","offer_id":56307473056129,"sku":"A03633","price":14.3,"currency_code":"CHF","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/2265\/2931\/files\/A03633_1.jpg?v=1790080978","url":"https:\/\/coffeecoachingclub.ch\/en\/products\/la-marzocco-o-ring-2-62x12-37-ptfe-kugelkopf-dampfventil","provider":"Coffee Coaching Club GmbH","version":"1.0","type":"link"}