Robertshaw 1970-030 Thermocouple

The Robertshaw 1970-030 Thermocouple is a heavy-duty 30-inch Uni-Couple engineered for reliable 20 to 30 millivolt (mV) standing pilot systems. Designed with a high-grade stainless steel outer jacket, this lead resists heat blistering and oxidation in demanding combustion environments. The internal copper and nickel alloy construction ensures optimal electrical conductivity and thermal response times, critical for maintaining the safety loop in residential and commercial HVAC gas valve applications. The Robertshaw 1970 series features a versatile zip nut and Tinnerman clip, allowing for precise depth adjustment and secure mounting across virtually any pilot burner assembly. Its coaxial connection is equipped with a lock washer to prevent loosening from thermal expansion or mechanical vibration, making it a rugged trade-grade replacement for standing pilot light failures in furnaces, boilers, and water heaters.

• Universal Compatibility: The Uni-Couple design and included zip nut allow for rapid installation on threaded, unthreaded, or spring-clip pilot brackets.
• Enhanced Durability: A stainless steel tip and outer sheath provide superior protection against flame impingement and high-temperature burnout.
• Reliable Signal: High-purity copper tubing minimizes resistance, ensuring consistent millivolt output to the gas valve solenoid.
• Anti-Shorting Security: Features a high-temp mica washer to insulate the junction and prevent nuisance shutdowns from electrical shorts.

What is the typical voltage output for the 1970-030?
When under a no-load condition, this 30-inch thermocouple should produce between 25 and 30 millivolts. If the reading drops below 20mV under load, the pilot flame or the lead itself may require adjustment or replacement.

Will this work with LP (Propane) and Natural Gas?
Yes, the Robertshaw 1970-030 is rated for both LP and Natural Gas applications, provided the pilot burner supports a standard thermocouple sensor.

How do I ensure a proper connection at the gas valve?
Hand-tighten the coaxial nut into the gas valve, then apply an additional 1/4 turn with a wrench. Overtightening can damage the internal lead or the mica insulator.

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.