Vertical Multi-Grade Sand Filter Vessel detail Drawing to ASME Standards

This detailed engineering drawing depicts a vertical multi-grade sand filter vessel designed to ASME Section VIII Division 1 standards. The vessel features a 583mm diameter cylindrical shell with 6mm thickness and torispherical dish ends of 8mm thickness. Operating at 30 PSI (max 45 PSI), the unit is designed for water filtration with a flow rate of 9 m³/hr. Key components include a top man hole (203mm diameter), side man hole (457mm diameter), inlet/outlet connections (75mm NB), air release valve (25mm NB), and backwash connection (50mm NB). The vessel incorporates lateral nozzle filters (25mm diameter, 7 × 2 arrangement), sight glass, H-channel support structure, and lifting lugs for installation handling. All connections utilize ANSI B16.5 Class 150 flanges. The vessel is constructed from ASTM A36 carbon steel with 0.7 joint efficiency for the shell and specified corrosion allowance of 2mm. The interior receives epoxy coating for corrosion protection while maintaining water quality integrity. The design includes hydrostatic testing at 120 PSI in vertical position per code requirements.