{"product_id":"sv9501m8129-honeywell-fast-opening-smart-gas-valve-24v-12-npt","title":"SV9501M8129 | Honeywell Fast-Opening Smart Gas Valve 24V 1\/2\" NPT","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-start=\"86\" data-end=\"424\"\u003eThe Honeywell SV9501M8129 is a fast-opening SmartValve designed to control gas flow and electronic intermittent pilot ignition sequencing in heating systems. Operating at 24 VAC, it features a 90-second ignition trial, continuous retry capability, and is factory-set for natural gas use with an included LP conversion kit.\u003c\/p\u003e\n\u003ch3 data-start=\"502\" data-end=\"534\"\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable style=\"width: 99.964%; height: 686px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 22.2165%; height: 19.6px;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.6504%; height: 19.6px;\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 22.2165%; height: 19.6px;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.6504%; height: 19.6px;\"\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 22.2165%; height: 19.6px;\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.6504%; height: 19.6px;\"\u003eGas Controls\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 22.2165%; height: 19.6px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.6504%; height: 19.6px;\"\u003eSV9501M8129\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 22.2165%; height: 19.6px;\"\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.6504%; height: 19.6px;\"\u003eSmart Gas Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 22.2165%; height: 19.6px;\"\u003e\u003cstrong\u003eVoltage Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.6504%; height: 19.6px;\"\u003e24 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 22.2165%; height: 19.6px;\"\u003e\u003cstrong\u003eFrequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.6504%; height: 19.6px;\"\u003e50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 22.2165%; height: 19.6px;\"\u003e\u003cstrong\u003eGas Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.6504%; height: 19.6px;\"\u003eNatural Gas (includes LP Conversion Kit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 22.2165%; height: 19.6px;\"\u003e\u003cstrong\u003eIgnition Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.6504%; height: 19.6px;\"\u003eElectronic Intermittent Pilot (EI)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 22.2165%; height: 19.6px;\"\u003e\u003cstrong\u003eOpening Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.6504%; height: 19.6px;\"\u003eFast Opening\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"width: 22.2165%; height: 39.2px;\"\u003e\u003cstrong\u003eIgnition Trial Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.6504%; height: 39.2px;\"\u003e90 Seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 22.2165%; height: 19.6px;\"\u003e\u003cstrong\u003eRetry Mode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.6504%; height: 19.6px;\"\u003eContinuous Retry After Ignition Failure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 22.2165%; height: 19.6px;\"\u003e\u003cstrong\u003ePressure Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.6504%; height: 19.6px;\"\u003e1\/2 PSI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"width: 22.2165%; height: 39.2px;\"\u003e\u003cstrong\u003eManifold Pressure Setting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.6504%; height: 39.2px;\"\u003e3.4 in. W.C.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 22.2165%; height: 19.6px;\"\u003e\u003cstrong\u003ePressure Tap Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.6504%; height: 19.6px;\"\u003e1\/8\" NPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 22.2165%; height: 19.6px;\"\u003e\u003cstrong\u003eConnection Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.6504%; height: 19.6px;\"\u003e1\/2\" x 1\/2\" NPT (Inlet\/Outlet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"width: 22.2165%; height: 39.2px;\"\u003e\u003cstrong\u003eFlame Failure Response Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.6504%; height: 39.2px;\"\u003e1.6 seconds @ 3 µA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 22.2165%; height: 19.6px;\"\u003e\u003cstrong\u003ePre-Purge\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.6504%; height: 19.6px;\"\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 58.8px;\"\u003e\n\u003ctd style=\"width: 22.2165%; height: 58.8px;\"\u003e\u003cstrong\u003eAmbient Temperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.6504%; height: 58.8px;\"\u003e-40°F to +175°F (-40°C to +79°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"width: 22.2165%; height: 39.2px;\"\u003e\u003cstrong\u003eMounting Orientation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.6504%; height: 39.2px;\"\u003e0° to 90° from upright position of control knob, including vertical mounting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 22.2165%; height: 19.6px;\"\u003e\u003cstrong\u003eBody Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.6504%; height: 19.6px;\"\u003eDie-Cast Aluminum Housing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 22.2165%; height: 19.6px;\"\u003e\u003cstrong\u003eElectrical Ratings\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.6504%; height: 19.6px;\"\u003e24 VAC, Class 2 Circuit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"width: 22.2165%; height: 39.2px;\"\u003e\u003cstrong\u003eDimensions (W × H × L)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.6504%; height: 39.2px;\"\u003e3.2 in × 4.9 in × 4.1 in (81 mm × 124 mm × 104 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"width: 22.2165%; height: 39.2px;\"\u003e\u003cstrong\u003eIncluded Accessories\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.6504%; height: 39.2px;\"\u003eNatural to LP Conversion Kit, Extension Harness\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 22.2165%; height: 19.6px;\"\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.6504%; height: 19.6px;\"\u003eCSA International Certified (CSA 112395)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 22.2165%; height: 19.6px;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.6504%; height: 19.6px;\"\u003eGas Furnaces, Boilers, and Heating Appliances\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 22.2165%; height: 19.6px;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 77.6504%; height: 19.6px;\"\u003e2.00 lbs (0.91 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eInformation About \u003cspan data-sheets-root=\"1\"\u003eSV9501M8129\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe SV9501M8129 is part of Honeywell’s SmartValve system, integrating gas flow control and electronic ignition sequencing into a single, compact assembly. It provides precise management of gas and ignition operations for intermittent pilot heating systems, featuring fast-opening response for immediate burner ignition. The valve supports natural gas as standard but includes an LP conversion kit for flexible application. Its continuous retry capability ensures reliable ignition performance even under variable system conditions, while its electronic safety interlocks and flame failure response provide superior protection. The SV9501M8129 is designed for easy installation, with multiple mounting orientations and integrated electrical connectors for simplified wiring. Its rugged construction and CSA certification make it suitable for both residential and light commercial gas heating applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFast-Opening Gas Valve: Enables rapid gas flow to the burner for efficient and responsive ignition cycles.\u003c\/li\u003e\n\u003cli\u003eIntegrated SmartValve Control: Combines ignition sequencing, gas flow control, and safety interlocks in one unit.\u003c\/li\u003e\n\u003cli\u003eContinuous Retry Operation: Automatically reattempts ignition after flame failure to maintain heating system uptime.\u003c\/li\u003e\n\u003cli\u003eDual Gas Compatibility: Factory-calibrated for natural gas with LP conversion kit included for propane applications.\u003c\/li\u003e\n\u003cli\u003eCompact, Durable Design: Aluminum housing ensures long-term reliability and thermal resistance in harsh environments.\u003c\/li\u003e\n\u003cli\u003eWide Temperature Tolerance: Operates from -40°F to +175°F for versatile installation in varied climates.\u003c\/li\u003e\n\u003cli\u003eFlexible Mounting Options: Installs up to 90° in any direction from upright, providing easy retrofit adaptability.\u003c\/li\u003e\n\u003cli\u003eFlame Safety Monitoring: Responds within 1.6 seconds to flame failure for enhanced safety assurance.\u003c\/li\u003e\n\u003cli\u003eStandard 1\/2\" NPT Ports: Simplifies connection to common furnace and boiler gas lines.\u003c\/li\u003e\n\u003cli\u003eCSA Certified: Meets North American safety and performance standards for gas-fired systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe SV9501M8129 delivers the reliability and precision required for modern heating systems, providing fast ignition response, advanced safety controls, and long-term performance in demanding applications.\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":49105124753664,"sku":"SV9501M8129","price":733.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/Genuine-Honeywell-SV9501M8129-Gas-Valve_5bb52f90-23d8-4c93-99cd-cc193140aa39.a46a958fe8f430944ece97f6e3a07c05.jpg?v=1785540806","url":"https:\/\/alotechparts.com\/products\/sv9501m8129-honeywell-fast-opening-smart-gas-valve-24v-12-npt","provider":"Alo Tech Solutions","version":"1.0","type":"link"}