or debris within the diaphragm housing

protecting the motor and surrounding components

The valve features a manual adjustment spindle

Recognized by contractors as functionally identical to the Barber Colman AL-87 and M215 models

When you are troubleshooting erratic pressure spikes or confirming high-limit cutouts

Robertshaw 5300-027 Thermostat 30067439-890 or debris within the diaphragmThe Robertshaw 5300 027 Thermostat is a heavy duty, snap acting electric temperature control engineered for high demand industrial and commercial heating applications. As a 5300 Series mechanical thermostat, this SPST temperature switch features a broad 140F to 500F (60C to 260C) range, making it a critical component for electric cooking equipment, deep fryers, and industrial ovens. The unit utilizes a 48 inch capillary with a 1 4" x 7 5 8" nickel