{"title":"9Barista Mk.1 O Rings","description":"","products":[{"product_id":"boiler-o-ring-seal-9barista-mk1","title":"Boiler O-ring Seal | 9Barista Mk.1","description":"\u003cp data-start=\"322\" data-end=\"547\"\u003eThis is a replacement boiler O-ring seal for the 9Barista Mk.1 espresso machine. It’s a key part of the machine’s pressure system, designed to maintain a tight seal between the boiler and upper chamber during brewing.\u003c\/p\u003e\n\u003cp data-start=\"549\" data-end=\"892\"\u003eMade from high-quality, food-grade silicone rubber, the O-ring is durable, heat-resistant, and safe for long-term use in high-pressure environments. Under normal operation, the original seal should last for years. However, if it becomes damaged due to overheating, wear, or accidental pinching during assembly, a replacement may be needed.\u003c\/p\u003e\n\u003cp data-start=\"894\" data-end=\"1084\"\u003eInstalling a new boiler O-ring helps ensure your machine stays leak-free and delivers consistent pressure for perfect espresso shots. It’s easy to replace and does not require special tools.\u003c\/p\u003e\n\u003cp\u003eMaterial: Silicone rubber\u003c\/p\u003e\n\u003cp\u003eInternal diameter: 55mm\u003c\/p\u003e\n\u003cp\u003eCross section: 2mm\u003c\/p\u003e\n\u003cp\u003eCompatibility: \u003c\/p\u003e\n\u003ctable style=\"width: 100%;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 48.5006%;\"\u003e9Barista Mk.1\u003c\/td\u003e\n\u003ctd style=\"width: 51.1416%;\"\u003e9Barista Mk.2 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 48.5006%;\"\u003eYes\u003c\/td\u003e\n\u003ctd style=\"width: 51.1416%;\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"9Barista","offers":[{"title":"Default Title","offer_id":43319208018107,"sku":"boiler-o-ring","price":1.35,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0626\/0611\/5003\/products\/Shop-Boiler-O-ring-pdf.jpg?v=1762435999"},{"product_id":"safety-ring-and-seals-9barista","title":"Safety Ring and Seals for 9Barista Espresso Machine","description":"\u003cp data-start=\"531\" data-end=\"684\"\u003eThis Safety Ring and Seals set is a vital replacement part for all 9Barista espresso machines, compatible with both the Mk.1 and Mk.2 models.\u003c\/p\u003e\n\u003cp data-start=\"686\" data-end=\"971\"\u003eThe safety ring is a built-in fail-safe designed to safely depressurise the machine in the event of overheating. If you notice water leaking from a small hole on the side of the ring, this indicates the safety ring has activated and must be replaced to maintain safe operation.\u003c\/p\u003e\n\u003cp data-start=\"973\" data-end=\"1167\"\u003eThis kit includes a replacement safety ring and a set of O-ring seals, manufactured from high-quality silicone rubber. These seals ensure a tight, pressure-safe fit during operation.\u003c\/p\u003e\n\u003cp\u003eInstructions on how to fit the replacement safety ring can be found \u003ca title=\"Replacing the safety ring\" href=\"https:\/\/9barista.com\/a\/knowledge-base\/instructions\/replacing-the-safety-ring\" target=\"_blank\" rel=\"noopener noreferrer\"\u003ehere\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eO-ring seals:\u003c\/p\u003e\n\u003cp\u003eMaterial: Silicone rubber\u003c\/p\u003e\n\u003cp\u003eInternal diameter: 9.5mm\u003c\/p\u003e\n\u003cp\u003eCross section: 1.5mm\u003c\/p\u003e\n\u003cp\u003eCompatibility: \u003c\/p\u003e\n\u003ctable style=\"width: 100%;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 45.7733%;\"\u003e9Barista Mk.1\u003c\/td\u003e\n\u003ctd style=\"width: 53.869%;\"\u003e9Barista Mk.2 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 45.7733%;\"\u003eYes\u003c\/td\u003e\n\u003ctd style=\"width: 53.869%;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"9Barista","offers":[{"title":"Default Title","offer_id":43319208280251,"sku":"safety-ring-and-seals","price":4.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0626\/0611\/5003\/products\/Shop-Safety-Ring-3-pdf.jpg?v=1762435999"},{"product_id":"upper-chamber-o-ring-9barista","title":"Upper Chamber O-ring Seal for 9Barista Espresso Machine","description":"\u003cp data-start=\"503\" data-end=\"653\"\u003eThis Upper Chamber O-ring Seal is a genuine replacement part for the 9Barista espresso machine, compatible with both Mk.1 and Mk.2 models.\u003c\/p\u003e\n\u003cp data-start=\"655\" data-end=\"928\"\u003eThe O-ring forms a tight seal between the upper and lower chambers, helping maintain pressure during the brewing process. While the original seals included with your 9Barista are designed to last for years, accidental damage or wear over time may require a replacement.\u003c\/p\u003e\n\u003cp data-start=\"930\" data-end=\"1165\"\u003eMade from high-quality silicone rubber, this O-ring offers durability, heat resistance, and a secure fit. Replacing a worn or damaged seal helps restore your machine's performance and prevents pressure loss or leaks during brewing.\u003c\/p\u003e\n\u003cp data-start=\"1167\" data-end=\"1264\"\u003eIt’s easy to install and ensures continued reliability of your 9Barista with minimal maintenance.\u003c\/p\u003e\n\u003cp\u003eMaterial: Silicone rubber\u003c\/p\u003e\n\u003cp\u003eInternal diameter: 60mm\u003c\/p\u003e\n\u003cp\u003eCross section: 2mm\u003c\/p\u003e\n\u003cp\u003eCompatibility: \u003c\/p\u003e\n\u003ctable style=\"width: 100%;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 46.7307%;\"\u003e9Barista Mk.1\u003c\/td\u003e\n\u003ctd style=\"width: 52.9115%;\"\u003e9Barista Mk.2 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 46.7307%;\"\u003eYes\u003c\/td\u003e\n\u003ctd style=\"width: 52.9115%;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"9Barista","offers":[{"title":"Default Title","offer_id":43319208444091,"sku":"upper-chamber-o-ring","price":1.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0626\/0611\/5003\/products\/Shop-Upper-Chamber-O-ring-pdf.jpg?v=1762435998"},{"product_id":"grouphead-o-ring-9barista","title":"Grouphead O-ring for 9Barista Espresso Machine","description":"\u003cp data-start=\"354\" data-end=\"487\"\u003eThis is a replacement Grouphead O-ring seal for the 9Barista espresso machine, compatible with both Mk.1 and Mk.2 models.\u003c\/p\u003e\n\u003cp data-start=\"489\" data-end=\"736\"\u003eThe Grouphead O-ring helps form a tight, heat- and pressure-resistant seal between the upper and lower sections of the espresso machine. It's made from high-quality silicone rubber designed to withstand high temperatures and prolonged use.\u003c\/p\u003e\n\u003cp data-start=\"738\" data-end=\"945\"\u003eWhile this seal is engineered to last for many years under normal operation, and typically won't need replacing, we’ve made it available as a spare part just in case of accidental damage or wear over time.\u003c\/p\u003e\n\u003cp data-start=\"947\" data-end=\"1132\"\u003eReplacing a damaged or leaking grouphead seal helps maintain optimal pressure during brewing and ensures consistent espresso quality. It’s easy to install and requires no special tools.\u003c\/p\u003e\n\u003cp data-start=\"1139\" data-end=\"1172\"\u003eMaterial:\u003cbr data-start=\"1152\" data-end=\"1155\"\u003e– Silicone rubber\u003c\/p\u003e\n\u003cp data-start=\"1174\" data-end=\"1240\"\u003eDimensions:\u003cbr data-start=\"1189\" data-end=\"1192\"\u003e– Internal diameter: 50mm\u003cbr data-start=\"1217\" data-end=\"1220\"\u003e– Cross section: 4mm\u003c\/p\u003e\n\u003cp\u003eCompatibility: \u003c\/p\u003e\n\u003ctable style=\"width: 100%;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 52.3944%;\"\u003e9Barista Mk.1\u003c\/td\u003e\n\u003ctd style=\"width: 47.2478%;\"\u003e9Barista Mk.2 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 52.3944%;\"\u003eYes\u003c\/td\u003e\n\u003ctd style=\"width: 47.2478%;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"9Barista","offers":[{"title":"Default Title","offer_id":43319208837307,"sku":"Grouphead-O-ring","price":2.7,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0626\/0611\/5003\/products\/Shop-Grouphead-o-ring-pdf.jpg?v=1696512493"},{"product_id":"valve-pin-and-seal-9barista","title":"Valve Pin and Seal for 9Barista Espresso Machine","description":"\u003cp data-end=\"473\" data-start=\"336\"\u003eThis is a replacement valve pin and O-ring seal for the 9Barista espresso machine, compatible with both Mk.1 and Mk.2 models.\u003c\/p\u003e\n\u003cp data-end=\"725\" data-start=\"475\"\u003eThe valve pin, made from PTFE, is designed for durability and heat resistance. PTFE provides a smooth, low-friction surface that helps ensure consistent valve movement and pressure regulation during espresso brewing.\u003c\/p\u003e\n\u003cp data-end=\"934\" data-start=\"727\"\u003eThe included O-ring is made from food-grade silicone rubber, forming a tight seal around the valve pin. This prevents leaks and maintains the correct brewing pressure for optimal espresso extraction.\u003c\/p\u003e\n\u003cp data-end=\"1224\" data-start=\"936\"\u003eThese parts rarely require replacement under normal conditions, but can become worn or damaged with heavy use or overheating. If you’re experiencing issues with pressure stability, leaks, or inconsistent shots, replacing the valve pin and seal can help restore your machine’s performance.\u003c\/p\u003e\n\u003cp data-end=\"1351\" data-start=\"1231\"\u003eMaterials:\u003cbr data-end=\"1248\" data-start=\"1245\"\u003e– Valve pin: PTFE\u003cbr data-end=\"1268\" data-start=\"1265\"\u003e– O-ring: Silicone rubber\u003cbr data-end=\"1296\" data-start=\"1293\"\u003e– O-ring size: 6mm internal diameter, 2mm cross section\u003c\/p\u003e\n\u003cp\u003eCompatibility: \u003c\/p\u003e\n\u003ctable width=\"100%\" style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 49.3856%;\"\u003e9Barista Mk.1\u003c\/td\u003e\n\u003ctd style=\"width: 50.2566%;\"\u003e9Barista Mk.2 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 49.3856%;\"\u003eYes\u003c\/td\u003e\n\u003ctd style=\"width: 50.2566%;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"9Barista","offers":[{"title":"Default Title","offer_id":43319208902843,"sku":"Valve pin and seal","price":4.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0626\/0611\/5003\/products\/Shop-Valve-pin-and-seal-pdf.jpg?v=1762435998"},{"product_id":"valve-chamber-seal-9barista","title":"Valve Chamber Seal for 9Barista Espresso Machine","description":"\u003cp data-start=\"337\" data-end=\"467\"\u003eThis is a replacement valve chamber seal for the 9Barista espresso machine, compatible with both Mk.1 and Mk.2 models.\u003c\/p\u003e\n\u003cp data-start=\"469\" data-end=\"736\"\u003eThe valve chamber seal plays a vital role in maintaining a pressure-tight environment inside your 9Barista. Located within the valve assembly, this small but essential component helps prevent leaks and ensures consistent pressure and flow during espresso brewing.\u003c\/p\u003e\n\u003cp data-start=\"738\" data-end=\"947\"\u003eMade from food-grade silicone rubber, the seal is highly resistant to heat, pressure, and wear. It is precision-molded to match factory specifications and delivers long-lasting performance under daily use.\u003c\/p\u003e\n\u003cp data-start=\"949\" data-end=\"1181\"\u003eIf you notice changes in brew time or pressure stability, a worn or damaged valve chamber seal could be the cause. Replacing it is straightforward and can help restore optimal function.\u003c\/p\u003e\n\u003cp\u003eMaterial: Silicone rubber\u003c\/p\u003e\n\u003cp\u003eInternal diameter: 8mm\u003c\/p\u003e\n\u003cp\u003eCross section: 2mm\u003c\/p\u003e\n\u003cp\u003eCompatibility:\u003c\/p\u003e\n\u003ctable style=\"width: 100%; height: 19.5938px;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 51.886%; height: 19.5938px;\"\u003e 9Barista Mk.1\u003c\/td\u003e\n\u003ctd style=\"width: 47.7563%; height: 19.5938px;\"\u003e9Barista Mk.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 51.886%;\"\u003eYes\u003c\/td\u003e\n\u003ctd style=\"width: 47.7563%;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"9Barista","offers":[{"title":"Default Title","offer_id":43319208968379,"sku":"Valve chamber seal","price":0.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0626\/0611\/5003\/products\/Shop-Valve-chamber-seal-pdf.jpg?v=1696512865"},{"product_id":"valve-body-seal-9barista","title":"Valve Body Seal for 9Barista Espresso Machine","description":"\u003cp data-start=\"343\" data-end=\"470\"\u003eThis is a replacement Valve Body Seal for the 9Barista espresso machine, compatible with both Mk.1 and Mk.2 models.\u003c\/p\u003e\n\u003cp data-start=\"472\" data-end=\"734\"\u003eThe valve body seal is responsible for creating a secure, pressure-tight connection within the valve assembly. Made from food-grade silicone rubber, it is designed to withstand the high temperatures and pressures required for consistent espresso brewing.\u003c\/p\u003e\n\u003cp data-start=\"736\" data-end=\"1064\"\u003eOver time, seals can degrade due to heat cycles, cleaning agents, or mechanical wear. Replacing a worn valve body seal helps prevent steam or water leakage and ensures your machine continues operating at peak performance. If you're experiencing inconsistent brew pressure or visible leaks, this small part could be the solution.\u003c\/p\u003e\n\u003cp data-start=\"1066\" data-end=\"1189\"\u003eInstallation is simple and doesn’t require specialist tools—ideal for home users performing routine maintenance or repairs.\u003c\/p\u003e\n\u003cp\u003eMaterial: Silicone rubber\u003c\/p\u003e\n\u003cp\u003eInternal diameter: 21mm\u003c\/p\u003e\n\u003cp\u003eCross section: 2mm\u003c\/p\u003e","brand":"9Barista","offers":[{"title":"Default Title","offer_id":43319209033915,"sku":"Valve body seal","price":0.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0626\/0611\/5003\/products\/Shop-Valve-body-seal-pdf.jpg?v=1696512850"}],"url":"https:\/\/9barista.com\/en-cv\/collections\/9barista-mk-1-spares.oembed","provider":"9Barista","version":"1.0","type":"link"}