{"product_id":"qty-1-new-for-hydac-0660d020on-filter-element-0660-d-020-on-1260889","title":"HYDAC 0660D020ON Replacement Filter Element - High Performance","description":"\u003cdiv class=\"koeed-container\"\u003e\n    \u003c!-- SEO Introduction --\u003e\n    \u003ch2 class=\"koeed-heading\"\u003ePremium Replacement Filter Element for HYDAC 0660D020ON\u003c\/h2\u003e\n    \u003cp\u003eThe \u003cstrong\u003e0660D020ON Replacement Filter Element\u003c\/strong\u003e is a high-performance, industrial-grade hydraulic pressure filter designed to meet or exceed the original HYDAC specifications. Engineered for critical fluid power systems, this element utilizes advanced micro-glass fiber technology to deliver exceptional dirt-holding capacity, low initial pressure drop, and a reliable 20-micron absolute filtration rating. It effectively protects sensitive hydraulic components like servo valves and high-pressure pumps from particulate contamination.\u003c\/p\u003e\n    \u003cp\u003eAt Koeed, we provide verified and cost-effective hydraulic filtration solutions to keep your industrial machinery operating at peak efficiency. \u003cem\u003eKeywords: HYDAC 0660D020ON Replacement, 20 Micron Hydraulic Filter, Pressure Filter Element, 0660 D Series, Glass Fiber Filter.\u003c\/em\u003e\u003c\/p\u003e\n\n    \u003c!-- Technical Specifications --\u003e\n    \u003ch2 class=\"koeed-heading\"\u003eTechnical Specifications \u0026amp; Performance Data\u003c\/h2\u003e\n    \u003cp\u003e\u003cem\u003eCritical FAE Note: The specifications below reflect the standard parameters for the \"0660 D 020 ON\" nomenclature. When crossing over to a replacement element, please verify the required collapse pressure (Delta P) of your housing. The standard \"ON\" series is typically designed for a 20 bar (290 psi) collapse rating.\u003c\/em\u003e\u003c\/p\u003e\n    \n    \u003cdiv style=\"overflow-x: auto;\"\u003e\n        \u003ctable class=\"koeed-table\"\u003e\n            \u003cthead\u003e\n                \u003ctr\u003e\n                    \u003cth\u003eSpecification Category\u003c\/th\u003e\n                    \u003cth\u003eDetail \/ Parameter\u003c\/th\u003e\n                \u003c\/tr\u003e\n            \u003c\/thead\u003e\n            \u003ctbody\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003e\u003cstrong\u003eForm Factor \/ Series\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd\u003e0660 D (High-Pressure Line Filter Element)\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003e\u003cstrong\u003eFiltration Rating\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd\u003e20 µm (Microns)\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003e\u003cstrong\u003eFilter Media Type\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd\u003eMulti-layered Micro-glass Fiber (Equivalent to Optimicron® 'ON')\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003e\u003cstrong\u003eFluid Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd\u003eStandard mineral oils, lubrication oils, and synthetic hydraulic fluids (HLP, HLPD, HVLP)\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003e\u003cstrong\u003eSeal Material\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd\u003eNBR (Buna-N) standard. \u003cem\u003eFKM\/Viton available for high-temp\/special fluids.\u003c\/em\u003e\n\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003e\u003cstrong\u003eFlow Direction\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd\u003eOutside-to-Inside\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003e\u003cstrong\u003eCollapse Pressure Rating\u003c\/strong\u003e\u003c\/td\u003e\n                    \u003ctd\u003eTypically 20 bar (290 psi) for standard 'ON' series elements.\u003c\/td\u003e\n                \u003c\/tr\u003e\n            \u003c\/tbody\u003e\n        \u003c\/table\u003e\n    \u003c\/div\u003e\n\n    \u003c!-- Application \u0026 Reliability --\u003e\n    \u003ch2 class=\"koeed-heading\"\u003eIndustrial Applications \u0026amp; Fluid Reliability\u003c\/h2\u003e\n    \u003cp\u003eParticulate contamination is the leading cause of hydraulic system failure. The \u003cstrong\u003e0660D020ON\u003c\/strong\u003e is specifically utilized in the pressure lines of CNC machinery, plastic injection molding equipment, steel mill hydraulics, and power generation turbines. The 20-micron rating provides an excellent balance—fine enough to protect proportional directional valves, yet offering a higher flow rate and longer service life compared to highly restrictive 3-micron or 5-micron elements. Always monitor your filter housing's differential pressure (Δp) indicator to ensure timely replacement before the internal bypass valve opens.\u003c\/p\u003e\n\n    \u003c!-- Koeed B2B Tool: Filter Beta Ratio Calculator --\u003e\n    \u003ch2 class=\"koeed-heading\"\u003e🛠️ Koeed Engineer's Tool: Filter Beta Ratio \u0026amp; Efficiency Calculator\u003c\/h2\u003e\n    \u003cp\u003eIndustrial filter elements are scientifically rated using the Multi-Pass Test (ISO 16889), which assigns a \u003cstrong\u003eBeta Ratio (β)\u003c\/strong\u003e to represent its effectiveness at a specific micron size. Use our frontend calculator to convert an OEM's Beta Ratio into a real-world Efficiency Percentage and calculate how many particles pass through the media.\u003c\/p\u003e\n    \n    \u003cnoscript\u003e\n        \u003cp\u003e\u003cstrong\u003eSEO Content Note:\u003c\/strong\u003e The Koeed Beta Ratio Calculator utilizes the industry-standard formula: \u003cem\u003eEfficiency (%) = ((Beta - 1) \/ Beta) × 100\u003c\/em\u003e. For example, a Beta ratio of 1000 equals 99.9% efficiency. A JavaScript-enabled browser is required for real-time calculation.\u003c\/p\u003e\n    \u003c\/noscript\u003e\n\n    \u003cdiv class=\"koeed-tool-card\"\u003e\n        \u003clabel for=\"koeed-beta-value\"\u003e\u003cstrong\u003eEnter Filter Beta Ratio (β):\u003c\/strong\u003e\u003c\/label\u003e\n        \u003cinput type=\"number\" id=\"koeed-beta-value\" class=\"koeed-input\" placeholder=\"e.g., 200, 1000\" min=\"2\"\u003e\n        \u003csmall style=\"color: #666; display: block; margin-bottom: 10px;\"\u003e*Modern high-performance glass fiber elements typically boast a Beta ratio of 200 or 1000.\u003c\/small\u003e\n        \n        \u003clabel for=\"koeed-particles-in\" style=\"margin-top: 10px; display: block;\"\u003e\u003cstrong\u003eUpstream Particles (Simulated count before filter):\u003c\/strong\u003e\u003c\/label\u003e\n        \u003cinput type=\"number\" id=\"koeed-particles-in\" class=\"koeed-input\" value=\"100000\" min=\"1000\"\u003e\n        \n        \u003cbutton class=\"koeed-btn\" onclick=\"koeedCalculateBeta()\" style=\"margin-top: 15px;\"\u003eCalculate Efficiency\u003c\/button\u003e\n        \n        \u003cdiv id=\"koeed-result-box\" style=\"margin-top: 20px; display: none; background: #fff; padding: 15px; border-left: 4px solid #16c8c8;\"\u003e\n            \u003cp style=\"margin: 0; font-size: 1.1em;\"\u003e\u003cstrong\u003eCapture Efficiency:\u003c\/strong\u003e \u003cspan id=\"koeed-result-eff\" style=\"color: #0056b3; font-weight: bold; font-size: 1.2em;\"\u003e0\u003c\/span\u003e%\u003c\/p\u003e\n            \u003chr style=\"border: 0; border-top: 1px solid #eee; margin: 10px 0;\"\u003e\n            \u003cp style=\"margin: 0;\"\u003e\u003cstrong\u003eParticles Blocked:\u003c\/strong\u003e \u003cspan id=\"koeed-result-blocked\" style=\"color: #28a745; font-weight: bold;\"\u003e0\u003c\/span\u003e\u003c\/p\u003e\n            \u003cp style=\"margin: 5px 0;\"\u003e\u003cstrong\u003eParticles Passed (Downstream):\u003c\/strong\u003e \u003cspan id=\"koeed-result-passed\" style=\"color: #d9534f; font-weight: bold;\"\u003e0\u003c\/span\u003e\u003c\/p\u003e\n            \u003cp style=\"margin: 10px 0 0 0; font-size: 0.9em; color: #666;\"\u003e\u003cem\u003e*This illustrates the absolute filtration capability. A higher Beta ratio means significantly fewer harmful particles reach your sensitive hydraulic valves.\u003c\/em\u003e\u003c\/p\u003e\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003c!-- Troubleshooting FAQ --\u003e\n    \u003ch2 class=\"koeed-heading\"\u003eTroubleshooting FAQ for Hydraulic Pressure Filters\u003c\/h2\u003e\n    \u003cdiv class=\"koeed-faq-section\"\u003e\n        \u003ch3\u003eQ: My filter housing's pop-up indicator (differential pressure gauge) triggered shortly after installing a new element. Why?\u003c\/h3\u003e\n        \u003cp\u003eA: Premature triggering of the Δp indicator is usually caused by two factors: 1) \u003cstrong\u003eCold Start (High Viscosity):\u003c\/strong\u003e If the hydraulic oil is cold, its thickness creates a high pressure drop. Wait for the system to reach operating temperature (usually 40°C - 50°C) before trusting the indicator. 2) \u003cstrong\u003eWrong Rating:\u003c\/strong\u003e You may have installed a denser element (e.g., 5 µm instead of 20 µm), causing more restriction than the system was designed for.\u003c\/p\u003e\n        \n        \u003ch3\u003eQ: Can I wash and reuse the 0660D020ON filter element?\u003c\/h3\u003e\n        \u003cp\u003eA: \u003cstrong\u003eNo.\u003c\/strong\u003e This element uses a depth-filtration micro-glass fiber media. The microscopic dirt particles are permanently trapped deep within the fiberglass matrix. Attempting to wash or blow it out with compressed air will tear the delicate media, creating a false path that will allow severe contamination to bypass the filter and destroy your hydraulic pumps.\u003c\/p\u003e\n        \n        \u003ch3\u003eQ: What is the difference between an 'ON' (Optimicron) and 'BH4HC' filter element?\u003c\/h3\u003e\n        \u003cp\u003eA: The 'ON' series is designed for standard differential collapse pressures (usually up to 20 bar) and is used in housings equipped with internal bypass valves. The 'BH4HC' series is heavily reinforced (High Collapse) to withstand extreme differential pressures (up to 210 bar) and is used in critical systems without bypass valves, ensuring that dirt is never allowed to bypass, even if the filter becomes completely clogged.\u003c\/p\u003e\n    \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c!-- Koeed Custom Styles \u0026 Scripts --\u003e\n\u003cstyle\u003e\n    .koeed-container { width: 100%; font-family: inherit; line-height: 1.6; color: #333; }\n    .koeed-heading { color: #0056b3; border-bottom: 2px solid #16c8c8; padding-bottom: 8px; margin-top: 30px; }\n    .koeed-table { width: 100%; border-collapse: collapse; margin-bottom: 20px; }\n    .koeed-table th, .koeed-table td { border: 1px solid #eeeeee; padding: 12px; text-align: left; }\n    .koeed-table tr:nth-child(even) { background-color: #fafafa; }\n    .koeed-table tr:nth-child(odd) { background-color: #f4fcfc; }\n    .koeed-table th { background-color: #0056b3; color: white; }\n    .koeed-tool-card { border: 1px solid #eeeeee; padding: 25px; background: #fafafa; border-top: 4px solid #16c8c8; box-shadow: 0 2px 5px rgba(0,0,0,0.05); }\n    .koeed-input { padding: 10px; border: 1px solid #ccc; width: 100%; box-sizing: border-box; font-size: 16px; margin-top: 5px; }\n    .koeed-btn { background-color: #16c8c8; color: white; border: none; padding: 12px 24px; font-size: 16px; cursor: pointer; font-weight: bold; transition: background-color 0.3s ease; }\n    .koeed-btn:hover { background-color: #0056b3; }\n    .koeed-faq-section h3 { color: #333; margin-top: 20px; font-size: 1.1em; }\n    .koeed-faq-section p { margin-top: 5px; color: #555; }\n\u003c\/style\u003e\n\n\u003cscript\u003e\n    function koeedCalculateBeta() {\n        var betaInput = parseFloat(document.getElementById(\"koeed-beta-value\").value);\n        var particlesIn = parseFloat(document.getElementById(\"koeed-particles-in\").value);\n        \n        var resultBox = document.getElementById(\"koeed-result-box\");\n        var effSpan = document.getElementById(\"koeed-result-eff\");\n        var blockedSpan = document.getElementById(\"koeed-result-blocked\");\n        var passedSpan = document.getElementById(\"koeed-result-passed\");\n\n        if(betaInput \u003e= 1 \u0026\u0026 particlesIn \u003e 0) {\n            \/\/ Efficiency Formula: ((Beta - 1) \/ Beta) * 100\n            var efficiency = ((betaInput - 1) \/ betaInput) * 100;\n            \n            \/\/ Particles passed: Upstream \/ Beta\n            var particlesPassed = particlesIn \/ betaInput;\n            var particlesBlocked = particlesIn - particlesPassed;\n            \n            \/\/ Format to handle high precision like 99.9% or 99.5%\n            var formattedEfficiency = efficiency.toLocaleString('en-US', {maximumFractionDigits: 4});\n            \n            effSpan.innerText = formattedEfficiency;\n            blockedSpan.innerText = Math.round(particlesBlocked).toLocaleString('en-US');\n            passedSpan.innerText = Math.round(particlesPassed).toLocaleString('en-US');\n            \n            resultBox.style.display = \"block\";\n        } else {\n            alert(\"Please enter a valid Beta Ratio (greater than 1) and Upstream Particle count.\");\n        }\n    }\n\u003c\/script\u003e\n\n\u003c!-- JSON-LD Structured Data for SEO --\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n[\n  {\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n      {\n        \"@type\": \"Question\",\n        \"name\": \"My filter housing's pop-up indicator (differential pressure gauge) triggered shortly after installing a new element. Why?\",\n        \"acceptedAnswer\": {\n          \"@type\": \"Answer\",\n          \"text\": \"Premature triggering is usually caused by cold hydraulic oil (high viscosity creating high pressure drop) or installing a filter with a much denser rating (e.g., 5 micron instead of 20 micron) than the system requires.\"\n        }\n      },\n      {\n        \"@type\": \"Question\",\n        \"name\": \"Can I wash and reuse the 0660D020ON filter element?\",\n        \"acceptedAnswer\": {\n          \"@type\": \"Answer\",\n          \"text\": \"No. It uses depth-filtration micro-glass fiber. Washing or blowing it out with compressed air will tear the delicate media, allowing severe contamination to bypass the filter and damage the hydraulic system.\"\n        }\n      },\n      {\n        \"@type\": \"Question\",\n        \"name\": \"What is the difference between an ON (Optimicron) and BH4HC filter element?\",\n        \"acceptedAnswer\": {\n          \"@type\": \"Answer\",\n          \"text\": \"The 'ON' series is designed for standard differential collapse pressures (usually up to 20 bar) for housings with bypass valves. The 'BH4HC' series is heavily reinforced (up to 210 bar) for critical systems without bypass valves.\"\n        }\n      }\n    ]\n  },\n  {\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"WebApplication\",\n    \"name\": \"Koeed Filter Beta Ratio \u0026 Efficiency Calculator\",\n    \"url\": \"https:\/\/www.koeed.com\",\n    \"description\": \"An engineering tool to calculate the absolute capture efficiency percentage and particle pass-through rate based on an industrial hydraulic filter's Beta Ratio (ISO 16889).\",\n    \"applicationCategory\": \"EngineeringApplication\",\n    \"operatingSystem\": \"All\",\n    \"browserRequirements\": \"Requires JavaScript\"\n  }\n]\n\u003c\/script\u003e","brand":"HYDAC","offers":[{"title":"Default Title","offer_id":43910473023673,"sku":"304642967664","price":183.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/8476\/7929\/files\/HYDAC_0660D020ON_Replacement_Filter_Element___High_Performance___HYDAC__1.webp?v=1778750524","url":"https:\/\/koeed.com\/bn\/products\/qty-1-new-for-hydac-0660d020on-filter-element-0660-d-020-on-1260889","provider":"KOEED","version":"1.0","type":"link"}