Johnson Controls T-4000-2138 Plastic Cover This specific orifice is typically

This specific orifice is typically rated for a maximum inlet pressure of 20 psig when used within the 143-80 regulator series

You can always use a higher voltage rating (440V) to replace a lower one (370V)

Key Benefits Precise Flow Regulation: Engineered for accurate gas metering to the pilot light

The precise 0

Johnson Controls T-4000-2138 Plastic Cover This specific orifice is typicallyThe Johnson Controls T 4000 2138 is a professional grade beige plastic thermostat cover designed specifically for T 4000 series pneumatic room thermostats. This field standard component provides a clean, streamlined aesthetic for commercial HVAC systems where tamper resistance and a minimalist profile are required. Engineered for versatility, the T 4000 2138 supports both horizontal and vertical mounting configurations, accommodating various pneumatic