Robertshaw 1720-003 Valve Assembly

The Robertshaw 1720-003 is a critical thermomagnetic safety valve engineered for precision fuel management in commercial and residential gas applications. As a TS11J series complete magnet and body assembly, this unit is designed to immediately terminate gas flow to both the pilot and main burner during a flame outage. The integrated safety magnet head assembly relies on millivoltage generated by a thermocouple; when the pilot flame is lost, the drop in voltage allows an internal spring to override the magnetic hold, physically closing the gas valve assembly. Featuring 3/8" NPT inlet and outlet connections, this 1720 series model is built for versatile integration into industrial machinery, infrared heaters, and commercial ovens.

This heavy-duty automatic safety valve is rated for ambient temperatures ranging from 32°F to 300°F, ensuring reliable operation in high-heat environments. Technical contractors often specify the Robertshaw 1720-003 for its compatibility with BJWA, FD, and GS series thermostats. Its robust construction minimizes mechanical failure in demanding fluid handling and energy management systems. By utilizing this high-quality HVACR component, technicians ensure a fail-safe shutoff mechanism that meets rigorous safety standards for recreational vehicle appliances and agricultural brooders.

• Universal Compatibility: Seamlessly interfaces with Robertshaw BJWA, FD, and GS series thermostats for streamlined field replacements.
• Fail-Safe Magnet Logic: Employs a spring-loaded thermomagnetic magnet assembly for instantaneous gas shutoff upon pilot failure.
• High-Temperature Rating: Specifically designed to maintain structural integrity in ambient conditions up to 300°F (149°C).
• Standardized Threading: Equipped with 3/8 inch NPT ports to simplify pipe fitting and reduce installation time on-site.
• Flow Interruption: Features built-in flow interruption to prevent main burner gas flow while the reset button is depressed during pilot lighting.

• What causes a safety valve magnet to fail? Most failures result from a weak thermocouple signal, soot buildup on the pilot, or internal spring fatigue. Always verify millivolt output before replacing the 1720-003 valve assembly.
• Which equipment uses the Robertshaw 1720-003? This Robertshaw gas valve is commonly found in pizza ovens, chicken brooders, infrared heaters, and various RV gas appliances.
• Can this valve be used for both pilot and main gas control? Yes, the 1720 series acts as a complete gas safety shutoff for both the pilot line and the main burner manifold.

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.