ASCO Numatics 8321G003 Two-Way Solenoid Valve

ASCO Numatics 8321G003 is a brass-bodied, three-way (3/2) quick-exhaust solenoid valve with 1/4 in NPT ports and normally open operation, designed for precise control in pneumatic circuits. It functions as a pilot-operated valve that shifts flow from the inlet to the output port while venting the third port to atmosphere for rapid exhaust and faster cycle times in automation systems. The valve uses ASCO’s Red Hat coil assembly and is available with dual-voltage AC coils: 120/60 Hz or 110/50 Hz, ensuring compatibility with common U.S. and international control configurations. Power consumption is about 8.1 watts on 50 Hz service, with coil insulation rated 6.1/F, making it suitable for compact installations in control panels and pneumatic manifolds. The 8321G003 is specified for brass body construction and is sized for 1/4 in pipe connections, enabling installation in tight spaces while delivering reliable operation in compressed-air systems up to approximately 200 psi differential. This model is described in supplier catalogs as a 3-way, normally open quick-exhaust valve within the ASCO 8317/8321 family, combining quick venting with robust pilot operation to control actuators, clamps, or other pneumatic devices across a wide range of automation and process line applications.