Field Controls 46257100 Relief Valve 318423-701 which is often a code

which is often a code requirement for primary safety limits in commercial applications

Engineered as a lever acting design with OPD (Over-Pressure Device)

Ensure the 1/4" flare connections are secured properly and that the installation orientation follows the flow arrow printed on the steel shell label

this OEM replacement motor maintains the original equipment’s airflow specifications and safety certifications

Whether you are performing a Reznor unit heater repair or upgrading a power venter relay

Field Controls 46257100 Relief Valve 318423-701 which is often a codeCommercial HVAC contractors and boiler technicians understand the critical role of a 4" Vacuum Relief Valve in maintaining atmospheric balance within pressurized systems. The Field Controls 46257100 is an industry standard component engineered to prevent tank collapse and structural damage by automatically venting vacuum conditions. Designed specifically for integration with power venting systems and large scale water heating equipment, this cast iron