{"title":"FOR DAF SCR\/ASC","description":null,"products":[{"product_id":"9aa087-330x310mm-for-daf-scr-asc","title":"9AA087 330x310mm For DAF DAF CF\/XF (till 2018) VDL Futura SCR\/ASC","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n    vertical-align: middle;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 – SCR是由什么组成？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What does the SCR system consist of?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur SCR catalyst system consists of the following components:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCopper‑based zeolite SCR catalyst (Cu‑SCR)\u003c\/strong\u003e – the primary catalyst that reduces NO\u003csub\u003ex\u003c\/sub\u003e emissions using ammonia (from urea).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e2‑inch Ammonia Slip Catalyst (ASC)\u003c\/strong\u003e – installed downstream of the main SCR to oxidise any excess NH₃ that passes through, preventing ammonia slip into the atmosphere.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAdvantages of this configuration:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eHigh NO\u003csub\u003ex\u003c\/sub\u003e conversion efficiency:\u003c\/strong\u003e The Cu‑SCR provides excellent low‑temperature activity (active from 180°C) and maintains high performance across a wide temperature range.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eEliminates ammonia slip:\u003c\/strong\u003e The 2‑inch ASC ensures that even during transient conditions (cold starts, sudden load changes), any unused ammonia is converted into nitrogen (N₂) before leaving the exhaust.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSystem durability:\u003c\/strong\u003e The combination of Cu‑SCR and ASC allows for higher urea dosing without environmental penalties, ensuring the SCR can operate at peak efficiency for longer.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSpace‑saving design:\u003c\/strong\u003e Integrating the ASC directly into the SCR canister (close‑coupled) eliminates the need for a separate after‑treatment device, saving space and weight.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCompliance with Euro 6d standards:\u003c\/strong\u003e This configuration ensures that the vehicle meets the strictest NO\u003csub\u003ex\u003c\/sub\u003e and ammonia emission limits, even under real‑world driving conditions (RDE).\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 – 铜基SCR的工作原理？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Working principle of copper‑based SCR\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eCopper‑based zeolite SCR (Cu‑SCR) operates through a series of catalytic reduction reactions. The process can be summarised as follows:\u003c\/p\u003e\n      \u003col\u003e\n        \u003cli\u003e\n\u003cstrong\u003eUrea injection:\u003c\/strong\u003e A urea‑water solution (AdBlue \/ DEF) is sprayed into the exhaust stream upstream of the SCR catalyst. The exhaust heat causes urea to decompose into ammonia (NH₃) and carbon dioxide (CO₂):\u003cbr\u003e\n        CO(NH₂)₂ + H₂O → 2 NH₃ + CO₂\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eNO\u003csub\u003ex\u003c\/sub\u003e reduction over Cu‑zeolite:\u003c\/strong\u003e The released NH₃ reacts with nitrogen oxides (NO and NO₂) on the active copper sites within the zeolite channels. The main reactions are:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003eStandard SCR:\u003c\/strong\u003e 4 NO + 4 NH₃ + O₂ → 4 N₂ + 6 H₂O\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eFast SCR:\u003c\/strong\u003e NO + NO₂ + 2 NH₃ → 2 N₂ + 3 H₂O\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eSlow SCR:\u003c\/strong\u003e 6 NO₂ + 8 NH₃ → 7 N₂ + 12 H₂O\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eHigh selectivity:\u003c\/strong\u003e The copper‑zeolite structure is highly selective, meaning it preferentially reduces NO\u003csub\u003ex\u003c\/sub\u003e rather than oxidising NH₃ (which would waste urea). This results in \u0026gt; 95% NO\u003csub\u003ex\u003c\/sub\u003e conversion efficiency under optimal conditions.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eLow‑temperature activity:\u003c\/strong\u003e Cu‑SCR becomes active at temperatures as low as \u003cstrong\u003e180°C\u003c\/strong\u003e, significantly lower than vanadium‑based SCR. This makes it ideal for cold‑start and low‑load applications.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eHydrothermal durability:\u003c\/strong\u003e The copper‑zeolite structure is stable up to 650°C, resisting thermal degradation during active DPF regeneration.\u003c\/li\u003e\n      \u003c\/ol\u003e\n      \u003cp\u003eAfter the main SCR, any remaining NH₃ is removed by the downstream ASC, ensuring zero ammonia slip.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 – SCR是多少目数？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e What is the cell density (CPSI) of the SCR?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur SCR catalyst features a cell density of \u003cstrong\u003e400 CPSI\u003c\/strong\u003e (cells per square inch).\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eWhy 400 CPSI is optimal:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eBalanced flow and efficiency:\u003c\/strong\u003e 400 CPSI provides a high geometric surface area for catalytic reactions while maintaining low exhaust backpressure, ensuring minimal impact on engine performance.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eDurability:\u003c\/strong\u003e The cell walls are thick enough to withstand thermal cycling and mechanical stress, yet thin enough to allow for efficient gas diffusion into the washcoat.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCoating retention:\u003c\/strong\u003e This cell density ensures that the copper‑zeolite washcoat adheres well and remains stable under high‑temperature operation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIndustry standard:\u003c\/strong\u003e 400 CPSI is the most common specification for heavy‑duty and light‑duty SCR applications, offering proven performance and reliability.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eIf you require a different cell density for a specific application, please contact our technical team for custom solutions.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 – 产品对应的车型以及零件号 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e Vehicle applications and part number\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 9AA087\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eCompatible Vehicles:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eDAF CF \/ XF (up to year 2018)\u003c\/li\u003e\n        \u003cli\u003eVDL Futura\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003ePlease verify compatibility with your vehicle's specific engine code and emission standard (Euro 5 \/ Euro 6) before purchasing. If you are unsure, please contact our sales team with your VIN for confirmation.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 – 质保一年 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e Warranty policy: 1 year\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur copper‑based SCR catalysts are covered by a \u003cstrong\u003e1‑year warranty\u003c\/strong\u003e from the date of purchase against manufacturing defects. This warranty covers the ceramic substrate structure, the copper‑zeolite coating integrity, and the ASC coating under normal use conditions.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eWhat is covered:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eManufacturing defects in the ceramic substrate (e.g., cracks, broken walls, or structural failures).\u003c\/li\u003e\n        \u003cli\u003eCoating integrity – flaking or detachment of the washcoat due to poor manufacturing quality.\u003c\/li\u003e\n        \u003cli\u003eDefects in the ASC coating that affect ammonia slip control.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eWhat is NOT covered:\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eUrea quality issues:\u003c\/strong\u003e Damage caused by using non‑ISO 22241‑compliant urea (impurities, high‑aldehydes, or incorrect concentration).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFuel contamination:\u003c\/strong\u003e Use of high‑sulfur diesel (\u0026gt; 500 ppm), leaded fuel, or biodiesel that does not meet EN 590 standards.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eEngine‑related issues:\u003c\/strong\u003e Engine misfires, excessive oil consumption, faulty injectors, or incorrect air‑fuel ratio that lead to overheating (\u0026gt; 650°C) or soot loading.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003ePhysical damage:\u003c\/strong\u003e Cracks or breakage caused by improper handling, installation damage, or impact from road debris.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eChemical poisoning:\u003c\/strong\u003e Contamination from phosphorus (engine oil additives), sulfur (fuel), alkali metals (Na, K), or heavy metals (Cu, Zn, Cr) that deactivate the catalyst.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eImproper installation:\u003c\/strong\u003e Incorrect orientation, insufficient mounting support, or exhaust leaks that cause operational issues.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eNormal wear and tear:\u003c\/strong\u003e Gradual loss of efficiency due to normal ageing, ash accumulation, or mileage beyond typical service intervals.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eWarranty claim procedure:\u003c\/strong\u003e To make a warranty claim, please contact our support team with your order number, vehicle details, installation records, and clear photos of the defect. We will review each case individually and determine whether the issue qualifies for warranty coverage.\u003c\/p\u003e\n      \u003cp\u003eWe recommend professional installation and regular maintenance to ensure the SCR operates within its design parameters.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 – 如何联系我们？ --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, compatibility, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"330 x 310mm \/ Euro 6","offer_id":54468767318362,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/1_f3f6f540-1b62-4c7c-a523-db45f11e68ff.jpg?v=1784875339"}],"url":"https:\/\/www.svipcat.com\/collections\/for-daf-scr-asc.oembed","provider":"SVIPCAT Store","version":"1.0","type":"link"}