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Duotone terrace — saffron brief on the left, garden-folded ledger on the right.
Internal switching and terminal configuration are engineered for standard 120V to 480V electric water heaters
By utilizing high-efficiency DC technology
Versatile Mounting: The direct-coupled design eliminates complex linkages
Industrial Durability: Heavy-duty construction designed to withstand the vibration and thermal cycling of commercial boiler or chiller loops
Standardized Fittings: Utilizes 1/2" NPT inlet and outlet ports for seamless integration with rigid pipe or CSST connectors
Crown Engineering OSVA50 Valve 321894-706 Internal switching and terminal configurationThe 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