White-Rodgers 3098-134 Flame Sensor

The White-Rodgers 3098-134 is a professional-grade mercury flame sensor engineered for cycle pilot ignition systems. This high-mass element sensor is specifically designed for applications requiring a medium response time, typically between 45 and 60 seconds, which prevents premature main valve closure during normal thermal fluctuations. With a 48-inch capillary lead and a 3-pin plug, this unit integrates seamlessly into White-Rodgers cycle pilot gas valves and various industrial furnaces or boilers. The bulb features a #19 style head with universal grooves for secure installation using retaining C-rings. Built to withstand extreme combustion environments, it maintains a maximum temperature rating of 1450°F. As a SPDT flame sensor, it provides reliable pilot flame proving and main valve control, ensuring safe and efficient burner cycles in older HVAC/R equipment where precise mercury-actuated switching is critical. This unit serves as the direct White-Rodgers flame sensor replacement for a broad range of legacy part numbers including 3098-111, 3098-135, and 3098-169.

• Universal Replacement Compatibility: Specifically designed to replace legacy models such as the 3098-111, 3098-135, 3098-136, 3098-141, 3098-147, 3098-161, 3098-165, 3098-169, and 3098-184.
• High Temperature Durability: The sensing bulb is rated for temperatures up to 1450°F, ensuring long-term pilot flame detection in high-stress industrial applications.
• Precise Switching Logic: Features a SPDT (Single-Pole Double-Throw) switch configuration with a 3-amp rating at 24 VAC for accurate burners control.
• Extended Reach: Equipped with a 48-inch capillary element for flexible routing in large furnace cabinets or boiler housings.
• Simplified Integration: Includes the Bulb Style #19 design and adapter fittings to accommodate various OEM burner configurations.

Can the 3098-134 be used with any gas valve?
No, mercury flame sensors must be replaced by cross-referencing the specific model number of the original sensor. They cannot be selected based on the gas valve model alone.

What is the difference between the 3098-134 and the 3098-156?
The 3098-134 utilizes a high-mass element for a medium response time (45-60s), whereas the 3098-156 uses a low-mass element for faster response (30-45s), typically utilized in systems with fan delay timers to prevent cold drafts.

How do I install the 48-inch capillary correctly?
You should not fully uncoil the capillary lead. Only uncoil the length necessary to reach the gas valve plug to avoid unnecessary stress or damage to the mercury-filled tube.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.