{"product_id":"general-pump-yub21405-unloader-valve-21-gpm-4050-psi-blue-spring-oem-replacement-part","title":"General Pump YUB21405 Unloader Valve 21 GPM 4050 PSI Blue Spring – OEM Replacement Part","description":"\u003cp data-start=\"0\" data-end=\"164\"\u003e\u003cstrong data-start=\"0\" data-end=\"16\"\u003ePart Number:\u003c\/strong\u003e YUB21405\u003cbr data-start=\"25\" data-end=\"28\"\u003e\u003cstrong data-start=\"28\" data-end=\"41\"\u003eCategory:\u003c\/strong\u003e Pressure Washer Components → Unloader Valves → General Pump Parts\u003cbr data-start=\"107\" data-end=\"110\"\u003e\u003cstrong data-start=\"110\" data-end=\"119\"\u003eType:\u003c\/strong\u003e General Pump Unloader Valve with Blue Spring\u003c\/p\u003e\n\u003chr data-start=\"166\" data-end=\"169\"\u003e\n\u003cp data-start=\"262\" data-end=\"654\"\u003eThe General Pump YUB21405 Unloader Valve is a genuine OEM pressure-actuated unloader designed for high-flow commercial and industrial pressure washer systems. Engineered to provide reliable pressure regulation and bypass protection, this heavy-duty unloader valve supports flow rates up to \u003cstrong data-start=\"552\" data-end=\"562\"\u003e21 GPM\u003c\/strong\u003e and operating pressures up to \u003cstrong data-start=\"593\" data-end=\"605\"\u003e4050 PSI\u003c\/strong\u003e, with a maximum pressure rating of \u003cstrong data-start=\"641\" data-end=\"653\"\u003e4500 PSI\u003c\/strong\u003e.\u003c\/p\u003e\n\u003chr data-start=\"1278\" data-end=\"1281\"\u003e\n\u003ch2 data-section-id=\"939trr\" data-start=\"1283\" data-end=\"1309\"\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul data-start=\"1311\" data-end=\"1786\"\u003e\n\u003cli data-section-id=\"1nbcrsj\" data-start=\"1311\" data-end=\"1354\"\u003eGenuine General Pump OEM Replacement Part\u003c\/li\u003e\n\u003cli data-section-id=\"1f6bvyf\" data-start=\"1355\" data-end=\"1400\"\u003eHeavy-duty pressure-actuated unloader valve\u003c\/li\u003e\n\u003cli data-section-id=\"1osy6i8\" data-start=\"1401\" data-end=\"1435\"\u003eSupports flow rates up to 21 GPM\u003c\/li\u003e\n\u003cli data-section-id=\"1ntyqc\" data-start=\"1436\" data-end=\"1474\"\u003eRated operating pressure of 4050 PSI\u003c\/li\u003e\n\u003cli data-section-id=\"z2if8g\" data-start=\"1475\" data-end=\"1512\"\u003eMaximum pressure rating of 4500 PSI\u003c\/li\u003e\n\u003cli data-section-id=\"1cc20pt\" data-start=\"1513\" data-end=\"1562\"\u003eBlue spring for high-flow pressure applications\u003c\/li\u003e\n\u003cli data-section-id=\"pavv7\" data-start=\"1563\" data-end=\"1611\"\u003eLarge 1\/2\" port configuration for maximum flow\u003c\/li\u003e\n\u003cli data-section-id=\"rdtyyv\" data-start=\"1612\" data-end=\"1670\"\u003eProvides reliable pressure regulation and bypass control\u003c\/li\u003e\n\u003cli data-section-id=\"nb6laj\" data-start=\"1671\" data-end=\"1724\"\u003eHelps protect pumps from excessive pressure buildup\u003c\/li\u003e\n\u003cli data-section-id=\"18stcen\" data-start=\"1725\" data-end=\"1786\"\u003eIdeal for commercial and industrial pressure washer systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1788\" data-end=\"1791\"\u003e\n\u003ch2 data-section-id=\"1cgu054\" data-start=\"1793\" data-end=\"1820\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cp data-start=\"1822\" data-end=\"1852\"\u003e\u003cstrong data-start=\"1822\" data-end=\"1839\"\u003eManufacturer:\u003c\/strong\u003e General Pump\u003c\/p\u003e\n\u003cp data-start=\"1854\" data-end=\"1879\"\u003e\u003cstrong data-start=\"1854\" data-end=\"1870\"\u003ePart Number:\u003c\/strong\u003e YUB21405\u003c\/p\u003e\n\u003cp data-start=\"1881\" data-end=\"1913\"\u003e\u003cstrong data-start=\"1881\" data-end=\"1898\"\u003eProduct Type:\u003c\/strong\u003e Unloader Valve\u003c\/p\u003e\n\u003cp data-start=\"1915\" data-end=\"1937\"\u003e\u003cstrong data-start=\"1915\" data-end=\"1932\"\u003eSpring Color:\u003c\/strong\u003e Blue\u003c\/p\u003e\n\u003cp data-start=\"1939\" data-end=\"1967\"\u003e\u003cstrong data-start=\"1939\" data-end=\"1958\"\u003eRated Pressure:\u003c\/strong\u003e 4050 PSI\u003c\/p\u003e\n\u003cp data-start=\"1969\" data-end=\"1999\"\u003e\u003cstrong data-start=\"1969\" data-end=\"1990\"\u003eMaximum Pressure:\u003c\/strong\u003e 4500 PSI\u003c\/p\u003e\n\u003cp data-start=\"2001\" data-end=\"2030\"\u003e\u003cstrong data-start=\"2001\" data-end=\"2023\"\u003eMaximum Flow Rate:\u003c\/strong\u003e 21 GPM\u003c\/p\u003e\n\u003cp data-start=\"2032\" data-end=\"2074\"\u003e\u003cstrong data-start=\"2032\" data-end=\"2047\"\u003eValve Type:\u003c\/strong\u003e Pressure-Actuated Unloader\u003c\/p\u003e\n\u003cp data-start=\"2076\" data-end=\"2100\"\u003e\u003cstrong data-start=\"2076\" data-end=\"2096\"\u003eOEM Replacement:\u003c\/strong\u003e Yes\u003c\/p\u003e\n\u003chr data-start=\"2102\" data-end=\"2105\"\u003e\n\u003ch2 data-section-id=\"3p0sng\" data-start=\"2107\" data-end=\"2128\"\u003ePort Configuration\u003c\/h2\u003e\n\u003cp data-start=\"2130\" data-end=\"2145\"\u003e\u003cstrong data-start=\"2130\" data-end=\"2145\"\u003eInlet Port:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2146\" data-end=\"2158\"\u003e\n\u003cli data-section-id=\"ygzdss\" data-start=\"2146\" data-end=\"2158\"\u003e1\/2\" Inlet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2160\" data-end=\"2176\"\u003e\u003cstrong data-start=\"2160\" data-end=\"2176\"\u003eOutlet Port:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2177\" data-end=\"2190\"\u003e\n\u003cli data-section-id=\"1uaqec5\" data-start=\"2177\" data-end=\"2190\"\u003e1\/2\" Outlet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2192\" data-end=\"2208\"\u003e\u003cstrong data-start=\"2192\" data-end=\"2208\"\u003eBypass Port:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2209\" data-end=\"2222\"\u003e\n\u003cli data-section-id=\"1sd1obw\" data-start=\"2209\" data-end=\"2222\"\u003e1\/2\" Bypass\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2224\" data-end=\"2227\"\u003e\n\u003ch2 data-section-id=\"164os46\" data-start=\"2229\" data-end=\"2252\"\u003eTypical Applications\u003c\/h2\u003e\n\u003cul data-start=\"2254\" data-end=\"2528\"\u003e\n\u003cli data-section-id=\"10pt3xi\" data-start=\"2254\" data-end=\"2290\"\u003eIndustrial pressure washer systems\u003c\/li\u003e\n\u003cli data-section-id=\"n48o3f\" data-start=\"2291\" data-end=\"2322\"\u003eCommercial cleaning equipment\u003c\/li\u003e\n\u003cli data-section-id=\"ggeu2l\" data-start=\"2323\" data-end=\"2349\"\u003eFleet washing operations\u003c\/li\u003e\n\u003cli data-section-id=\"uxv70o\" data-start=\"2350\" data-end=\"2392\"\u003eTruck and transportation wash facilities\u003c\/li\u003e\n\u003cli data-section-id=\"7a3rsy\" data-start=\"2393\" data-end=\"2424\"\u003eAgricultural cleaning systems\u003c\/li\u003e\n\u003cli data-section-id=\"14u5bc5\" data-start=\"2425\" data-end=\"2452\"\u003eHeavy equipment wash bays\u003c\/li\u003e\n\u003cli data-section-id=\"3k3pxk\" data-start=\"2453\" data-end=\"2486\"\u003eManufacturing facility cleaning\u003c\/li\u003e\n\u003cli data-section-id=\"17hj5g0\" data-start=\"2487\" data-end=\"2528\"\u003eCustom high-flow pressure washer builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2530\" data-end=\"2533\"\u003e\n\u003ch2 data-section-id=\"7zbpd1\" data-start=\"2535\" data-end=\"2560\"\u003ePerformance Advantages\u003c\/h2\u003e\n\u003cul data-start=\"2562\" data-end=\"3077\"\u003e\n\u003cli data-section-id=\"1h4o4no\" data-start=\"2562\" data-end=\"2617\"\u003eMaintains consistent system pressure during operation\u003c\/li\u003e\n\u003cli data-section-id=\"1xjlrps\" data-start=\"2618\" data-end=\"2683\"\u003eProtects pumps from excessive pressure buildup and dead-heading\u003c\/li\u003e\n\u003cli data-section-id=\"1dkk0wk\" data-start=\"2684\" data-end=\"2741\"\u003eSupports high-volume cleaning applications up to 21 GPM\u003c\/li\u003e\n\u003cli data-section-id=\"1mroihj\" data-start=\"2742\" data-end=\"2809\"\u003eProvides reliable bypass operation when trigger guns are released\u003c\/li\u003e\n\u003cli data-section-id=\"14ypbws\" data-start=\"2810\" data-end=\"2858\"\u003eImproves overall system safety and reliability\u003c\/li\u003e\n\u003cli data-section-id=\"qbyp2g\" data-start=\"2859\" data-end=\"2913\"\u003eLarge porting supports maximum water flow efficiency\u003c\/li\u003e\n\u003cli data-section-id=\"1gtk5qb\" data-start=\"2914\" data-end=\"2966\"\u003eDurable OEM construction ensures long service life\u003c\/li\u003e\n\u003cli data-section-id=\"k06jra\" data-start=\"2967\" data-end=\"3015\"\u003eDesigned for demanding industrial environments\u003c\/li\u003e\n\u003cli data-section-id=\"1rctapc\" data-start=\"3016\" data-end=\"3077\"\u003eHelps maximize pressure washer performance and productivity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3079\" data-end=\"3082\"\u003e\n\u003ch2 data-section-id=\"8fimbm\" data-start=\"3084\" data-end=\"3114\"\u003eMaintenance Recommendations\u003c\/h2\u003e\n\u003cul data-start=\"3116\" data-end=\"3561\"\u003e\n\u003cli data-section-id=\"uiz21x\" data-start=\"3116\" data-end=\"3197\"\u003eInspect the unloader valve regularly for leaks, wear, or pressure fluctuations.\u003c\/li\u003e\n\u003cli data-section-id=\"115sbx9\" data-start=\"3198\" data-end=\"3262\"\u003eVerify pressure settings during routine maintenance intervals.\u003c\/li\u003e\n\u003cli data-section-id=\"109fxbs\" data-start=\"3263\" data-end=\"3328\"\u003eInspect springs, seals, and internal valve components for wear.\u003c\/li\u003e\n\u003cli data-section-id=\"1539jcd\" data-start=\"3329\" data-end=\"3410\"\u003eFlush contaminants from the pressure washer system to minimize internal damage.\u003c\/li\u003e\n\u003cli data-section-id=\"zqt62i\" data-start=\"3411\" data-end=\"3481\"\u003eFollow General Pump installation and pressure adjustment procedures.\u003c\/li\u003e\n\u003cli data-section-id=\"1zsyys\" data-start=\"3482\" data-end=\"3561\"\u003eUse only genuine General Pump OEM replacement parts when servicing the valve.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"General Pump","offers":[{"title":"Default Title","offer_id":53334026191211,"sku":"YUB21405","price":135.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0917\/9201\/5723\/files\/YUB21405.jpg?v=1780418541","url":"https:\/\/generalsprayers.com\/products\/general-pump-yub21405-unloader-valve-21-gpm-4050-psi-blue-spring-oem-replacement-part","provider":"GeneralSprayers","version":"1.0","type":"link"}