{"product_id":"rocket-unterlagsscheibe-drehgriff-dampf-wasser-evo-pp","title":"Rocket Washer for Steam and Water Knob – Evoluzione and Premium Plus, A829904375","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\u003eThe small washer that keeps the knob snug and free of play\u003c\/h2\u003e\n\u003cp\u003eBetween the steam and water knob and the housing panel of your Rocket Evoluzione or Premium Plus sits a flat washer. It keeps the knob at a distance from the panel, spreads the force over a larger area when opening and closing, and prevents the knob and the panel from rubbing directly against each other. The part number is A829904375.\u003c\/p\u003e\n\u003cp\u003eYou only notice this part when it is missing or worn. Then the knob suddenly has play, sits lower than usual, scrapes audibly against the panel when turned, or a bare ring appears on the surface. Anyone who has taken the steam and water valve apart during a service sometimes finds the washer bent or cannot find it at all – then it should be replaced before the knob is refitted.\u003c\/p\u003e\n\u003ch3\u003eWhen it is due\u003c\/h3\u003e\n\u003cp\u003eThese signs point to a new washer:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe knob wobbles sideways or can be pushed back and forth.\u003c\/li\u003e\n\u003cli\u003eWhen turning, there is scratching or grinding between the knob and the housing panel.\u003c\/li\u003e\n\u003cli\u003eThe knob sits visibly lower than the one on the other side of the machine.\u003c\/li\u003e\n\u003cli\u003eA bare friction ring has formed on the panel.\u003c\/li\u003e\n\u003cli\u003eAfter a service, the old washer is bent, worn or can no longer be found.\u003c\/li\u003e\n\u003c\/ul\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\u003eWasher, flat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLocation\u003c\/th\u003e\n\u003ctd\u003eBetween the steam\/water knob and the housing panel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003ctd\u003eRocket Evoluzione and Premium Plus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eScope of delivery\u003c\/th\u003e\n\u003ctd\u003eOne washer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003eA829904375\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDesign\u003c\/th\u003e\n\u003ctd\u003eDimensions and material are not specified in the documentation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInstallation\u003c\/th\u003e\n\u003ctd\u003eFitting by a professional recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eRocket Espresso\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWho it is for\u003c\/h3\u003e\n\u003cp\u003eFor anyone who is overhauling the steam or water valve of their Evoluzione or Premium Plus anyway and wants to renew the small parts at the same time. A wobbly knob is not a cosmetic problem: the play is transferred to the shaft and, over time, works its way into the seal. If you replace it together with the shaft and the seals, you will have the valve back under control for many years.\u003c\/p\u003e\n\u003ch3\u003eImportant for installation\u003c\/h3\u003e\n\u003cp\u003eThe knob sits directly on the steam and water valve, and behind it is a boiler under pressure. Before any work, the machine must therefore be switched off, disconnected from the mains, completely cooled down and depressurised. We deliberately do not provide step-by-step instructions for this part – the work belongs in experienced hands. If you are unsure whether the washer fits your serial number, send us the number and we will check the fit.\u003c\/p\u003e\n\u003ch3\u003eWhat goes with it\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/en\/products\/rocket-platte-dampf-wasserhahn-evo-pp\"\u003ePlate for the steam and water valve, Evoluzione and Premium Plus\u003c\/a\u003e – the direct counterpart, part number A829904376.\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en\/products\/rocket-achse-dampf-wasserhahn-pp-evo\"\u003eShaft for the steam and water valve, Premium Plus and Evoluzione\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en\/products\/rocket-dampf-wasserhahn-pp-evo-ab-d1224\"\u003eSteam and water valve Premium Plus and Evoluzione, from serial number D1224\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en\/collections\/zubehor-und-ersatzteile-rocket\"\u003eAll Rocket spare parts\u003c\/a\u003e and \u003ca href=\"\/en\/collections\/serviceteile\"\u003eall service parts\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"ccc-roastery-tip\"\u003e\u003cp\u003e\u003cstrong\u003eFrom our workshop in Bern and Zürich\u003c\/strong\u003e\u003cbr\u003eWhen we open a steam valve, we lay out the small parts on a light-coloured cloth in the order they were removed – washer, plate, clip, shaft. That way nothing gets lost during reassembly and nothing ends up the wrong way round. This is our routine, not a manufacturer's specification. Afterwards we pull an espresso as a check, usually with \u003ca href=\"\/en\/products\/nutty-delight-kaffee-blend-brasilien-indien\"\u003eNutty Delight\u003c\/a\u003e or \u003ca href=\"\/en\/products\/cozy-chocolate-natural-brasilien-kaffeebohnen\"\u003eCozy Chocolate\u003c\/a\u003e; if you like it stronger, take \u003ca href=\"\/en\/products\/very-nutty-kraftiger-robusta-aus-indien\"\u003eVery Nutty\u003c\/a\u003e. The full selection is under \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\u003eReturns excluded\u003c\/strong\u003e\u003cbr\u003eOriginal spare parts are excluded from exchange and return. They are procured specifically for each order and cannot be resold after installation or a trial fitting on the machine. Therefore, check the model, year of manufacture and serial number of your machine before ordering – or drop us a quick message and we will clarify the fit together. Your rights in the event 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\u003eWhat are the dimensions of the washer?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe documentation for A829904375 does not say, and we do not make up a number. If you still have the old washer, measure the inner and outer diameter and send us the values – then we will compare before you order.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eIs this an electrical part?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eNo. The washer is a purely mechanical small part without any electrical function. However, it sits on an assembly with pressure and heat behind it – hence the note on installation.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eDo I need one or two washers?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eOne washer is supplied. Machines with separate steam and water valves have two knobs; if you overhaul both sides, order it twice accordingly.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eDoes it also fit the Appartamento or the R58?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThese model series use different knobs and different small parts. According to the documentation, the number A829904375 is assigned to the Evoluzione and the Premium Plus. For other models, send us the serial number and we will find the right part.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCan I see the part in your showroom?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eYes, of course. You will find us in Bern at Gerberngasse 44 and in Zürich at Hagenholzstrasse 50b. Bring your serial number or the old part along, and we will compare right there on site.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003eQuestions about the fit? 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\":\"What are the dimensions of the washer?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The documentation for number A829904375 does not state any dimensions. Measure the inner and outer diameter of the old washer and send us the values, then we will compare.\"}},{\"@type\":\"Question\",\"name\":\"Is this an electrical part?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. The washer is a purely mechanical small part without electrical function. It sits on an assembly with pressure and heat, hence the note on installation.\"}},{\"@type\":\"Question\",\"name\":\"Do I need one or two washers?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"One washer is supplied. If you overhaul both the steam and the water valve, order it twice.\"}},{\"@type\":\"Question\",\"name\":\"Does it also fit the Appartamento or the R58?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"These model series use different knobs and small parts. The number A829904375 is assigned to the Evoluzione and the Premium Plus. Send us the serial number for other models.\"}},{\"@type\":\"Question\",\"name\":\"Can I see the part in the showroom?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. We are in Bern at Gerberngasse 44 and in Zürich at Hagenholzstrasse 50b.\"}}]}\u003c\/script\u003e\n\u003c\/div\u003e","brand":"Rocket","offers":[{"title":"Default Title","offer_id":56310627893633,"sku":"A01934","price":1.98,"currency_code":"CHF","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/2265\/2931\/files\/A01934_1.jpg?v=1790157868","url":"https:\/\/coffeecoachingclub.ch\/en\/products\/rocket-unterlagsscheibe-drehgriff-dampf-wasser-evo-pp","provider":"Coffee Coaching Club GmbH","version":"1.0","type":"link"}