ASCO 8290B048PDB06 Piston Valve With Positioner

ASCO 8290B048PDB06 is a two-way, normally closed, angle-body piston valve in 3/4 in nominal size, featuring a stainless-steel body and a Cv of 11 for precise flow control in demanding process applications. This air-operated Series 290 (8290) valve uses a compact positioner configured with the PDB06 suffix to provide proportional control via a 4-20 mA input signal; the family also offers PDB04 (0-10 VDC) and PDB05 (0-20 mA) control options, illustrating its flexible integration in instrumentation and process-control systems. The valve’s actuator head is about 63 mm in diameter, enabling robust operation in industrial environments, and it is commonly employed to replace motorized valves where accurate, repeatable actuation is required in water, steam, or gas service within its pressure and temperature limits. Optional features include signaling boxes or two mechanical (reed) switches for position feedback on select configurations, though the base PDB06 configuration delivers integrated 4-20 mA positioning for direct control in process lines.