preventing over-travel or restricted flow in Johnson Controls VT valves

Failures typically stem from a ruptured internal diaphragm

this 3/8 inch flare shut off valve provides the durability required for heavy-duty commercial service applications

Can I use this orifice for an LP conversion

though a dedicated outdoor air sensor is usually preferred for solar shielding

Raypak 011760F Air Switch Els PW 17895 preventing over-travel or restricted flowThe Raypak 011760F is a critical safety component engineered for precise airflow monitoring in high efficiency heating systems. This Vent Air Switch 2. 50" WC is designed to verify proper drafting and ventilation before allowing the combustion cycle to proceed. Calibrated at a fixed 2. 50 inches water column set point, this diaphragm actuated switch protects the heat exchanger from soot buildup and prevents hazardous flue gas leakage and backdrafting.