Attachment B - VA Standard Detail SD 235239-04.pdf

This document is a VA Standard Detail piping diagram (235239-04) illustrating a No. 2 Burner Fuel Oil Systems configuration. The diagram provides comprehensive technical specifications for a standard fuel oil piping system used in residential or commercial heating applications, specifically for No. 2 oil burners.

The piping diagram details the complete fuel oil delivery system from the oil tank through various filtration, pressure regulation, and combustion components. Key system elements include the oil tank with secondary containment provisions, a one-pipe or two-pipe fuel delivery method with supply and return flow meters, primary and secondary filters, pressure regulators with low-pressure cutoff switches, an oil burner with integral controls, and safety features such as high-pressure shutoff valves and interlock switches for minimum flow verification. The diagram incorporates multiple pressure gauges, drain locations, flex hose connections, and detailed valve arrangements. System notes specify requirements for burner nozzle sizing per available pressure and flow capacity, steam pressure availability at maximum firing rate, and appropriate piping material selection. The standard detail emphasizes proper flame retention head configuration, combustion air handling, and safety interlocks for burner operation. This technical standard serves as a reference specification for contractors and engineers designing No. 2 fuel oil heating systems that conform to VA (Department of Veterans Affairs) building standards and requirements.