SV9501M8129 | Honeywell Fast-Opening Smart Gas Valve 24V 1/2" NPT
Honeywell · Valves & Process Control
Description The 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. Technical Specifications Condition New/Never Used Surplus Brand Honeywell Category Gas Controls Part Number SV9501M8129 Subcategory Smart Gas Valve Voltage Rating 24 VAC Frequency 50/60 Hz Gas Type Natural Gas (includes LP Conversion Kit) Ignition Type Electronic Intermittent Pilot (EI) Opening Type Fast Opening Ignition Trial Time 90 Seconds Retry Mode Continuous Retry After Ignition Failure Pressure Rating 1/2 PSI Manifold Pressure Setting 3.4 in. W.C. Pressure Tap Size 1/8" NPT Connection Size 1/2" x 1/2" NPT (Inlet/Outlet) Flame Failure Response Time 1.6 seconds @ 3 µA Pre-Purge None Ambient Temperature Range -40°F to +175°F (-40°C to +79°C) Mounting Orientation 0° to 90° from upright position of control knob, including vertical mounting Body Material Die-Cast Aluminum Housing Electrical Ratings 24 VAC, Class 2 Circuit Dimensions (W × H × L) 3.2 in × 4.9 in × 4.1 in (81 mm × 124 mm × 104 mm) Included Accessories Natural to LP Conversion Kit, Extension Harness Certifications CSA International Certified (CSA 112395) Application Gas Furnaces, Boilers, and Heating Appliances Weight 2.00 lbs (0.91 kg) Information About SV9501M8129 The 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. Key Features: Fast-Opening Gas Valve: Enables rapid gas flow to the burner for efficient and responsive ignition cycles. Integrated SmartValve Control: Combines ignition sequencing, gas flow control, and safety interlocks in one unit. Continuous Retry Operation: Automatically reattempts ignition after flame failure to maintain heating system uptime. Dual Gas Compatibility: Factory-calibrated for natural gas with LP conversion kit included for propane applications. Compact, Durable Design: Aluminum housing ensures long-term reliability and thermal resistance in harsh environments. Wide Temperature Tolerance: Operates from -40°F to +175°F for versatile installation in varied climates. Flexible Mounting Options: Installs up to 90° in any direction from upright, providing easy retrofit adaptability. Flame Safety Monitoring: Responds within 1.6 seconds to flame failure for enhanced safety assurance. Standard 1/2" NPT Ports: Simplifies connection to common furnace and boiler gas lines. CSA Certified: Meets North American safety and performance standards for gas-fired systems. The 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.
Brand: Honeywell · Category: Valves & Process Control
Key features
- Fast-Opening Gas Valve: Enables rapid gas flow to the burner for efficient and responsive ignition cycles.
- Integrated SmartValve Control: Combines ignition sequencing, gas flow control, and safety interlocks in one unit.
- Continuous Retry Operation: Automatically reattempts ignition after flame failure to maintain heating system uptime.
- Dual Gas Compatibility: Factory-calibrated for natural gas with LP conversion kit included for propane applications.
- Compact, Durable Design: Aluminum housing ensures long-term reliability and thermal resistance in harsh environments.
- Wide Temperature Tolerance: Operates from -40°F to +175°F for versatile installation in varied climates.
- Flexible Mounting Options: Installs up to 90° in any direction from upright, providing easy retrofit adaptability.
- Flame Safety Monitoring: Responds within 1.6 seconds to flame failure for enhanced safety assurance.
- Standard 1/2" NPT Ports: Simplifies connection to common furnace and boiler gas lines.
- CSA Certified: Meets North American safety and performance standards for gas-fired systems.
Specifications
| Manufacturer part number | SV9501M8129 |
|---|---|
| Condition | New/Never Used Surplus |
| Brand | Honeywell |
| Category | Gas Controls |
| Part Number | SV9501M8129 |
| Subcategory | Smart Gas Valve |
| Voltage Rating | 24 VAC |
| Frequency | 50/60 Hz |
| Gas Type | Natural Gas (includes LP Conversion Kit) |
| Ignition Type | Electronic Intermittent Pilot (EI) |
| Opening Type | Fast Opening |
| Ignition Trial Time | 90 Seconds |
| Retry Mode | Continuous Retry After Ignition Failure |
| Pressure Rating | 1/2 PSI |
| Manifold Pressure Setting | 3.4 in. W.C. |
| Pressure Tap Size | 1/8" NPT |
| Connection Size | 1/2" x 1/2" NPT (Inlet/Outlet) |
| Flame Failure Response Time | 1.6 seconds @ 3 µA |
| Pre-Purge | None |
| Ambient Temperature Range | -40°F to +175°F (-40°C to +79°C) |
| Mounting Orientation | 0° to 90° from upright position of control knob, including vertical mounting |
| Body Material | Die-Cast Aluminum Housing |
| Electrical Ratings | 24 VAC, Class 2 Circuit |
| Dimensions (W × H × L) | 3.2 in × 4.9 in × 4.1 in (81 mm × 124 mm × 104 mm) |
| Included Accessories | Natural to LP Conversion Kit, Extension Harness |
| Certifications | CSA International Certified (CSA 112395) |
| Application | Gas Furnaces, Boilers, and Heating Appliances |
| Weight | 2.00 lbs (0.91 kg) |
| Product type | Smart Gas Valve |
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