Crown Engineering OSVA50 Valve 321894-706 Industrial Durability: Heavy-duty construction designed

Industrial Durability: Heavy-duty construction designed to withstand the vibration and thermal cycling of commercial boiler or chiller loops

What furnace models use the 46K18 in-shot burner

ft for the mounting bolts to prevent thread stripping or oil seepage

Standardized Fittings: Utilizes 1/2" NPT inlet and outlet ports for seamless integration with rigid pipe or CSST connectors

Common Questions & Troubleshooting: How do I adjust the temperature range on this control

Crown Engineering OSVA50 Valve 321894-706 Industrial Durability: Heavy-duty construction designedThe Crown Engineering OSVA50 is a heavy duty Webster Oil Safety Valve (OSV) designed for professional oil fired heating system installations. This 1 2" NPT oil safety valve acts as a critical pressure reducing diaphragm, preventing line pressure from reaching the burner pump when the unit is not in operation. By maintaining a vacuum on the supply side, the Crown Engineering OSVA50 effectively eliminates the risk of environmental oil leaks caused by