Robertshaw 4350-040 Gas Thermostat

The Robertshaw 4350-040 Gas Thermostat is a heavy-duty BJWA commercial gas control engineered specifically for high-demand oven and griddle applications. This combination gas cock and by-pass type thermostat features a 1/4" NPT main outlet and a narrow flange design, allowing for flexible mounting above or below the manifold. With its 48-inch capillary length and 3/16" x 11-3/16" sensing bulb, the unit ensures responsive modulating action across a 250°F to 550°F temperature range. Designed for field durability, the rear housing can be rotated 90° clockwise to accommodate specific equipment configurations. This Robertshaw BJWA25PD-10-48 replacement provides a rated capacity of 70,000 BTU/HR for natural gas, managing both main gas flow and pilot bypass through a single-dial operation. Professionals value this high-temperature oven thermostat for its precise front-access bypass and pilot adjustments, facilitating rapid calibration during routine maintenance or new installations.

• Versatile Mounting: The rotating rear housing and narrow flange allow for seamless integration into compact commercial manifolds.
• Precise Modulation: Advanced modulating seat action maintains steady temperatures in high-volume cooking equipment like ranges and griddles.
• Field Adjustability: Front-slotted keys for pilot and bypass gas flows simplify tuning without requiring full disassembly.
• High BTU Capacity: Rated for up to 70,000 BTU/HR, meeting the energy demands of standard commercial oven burners.

• Can this unit replace earlier BJ series models? Yes, the 4350-040 is a direct functional replacement for many older BJ and legacy Uni-Line commercial thermostats.
• What is the maximum inlet pressure rating? This control is designed for a maximum inlet pressure of 0.5 PSI, typical for standard commercial gas lines.
• Does rotation affect calibration? Yes, rotating the rear housing requires a corresponding 1/4 turn of the center calibration screw to maintain accuracy.

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.