ROSS Controls 2173B4002 is a Classic 21 Series inline poppet directional control valve offering 3-way, 2-position operation with spring return for pneumatic actuation in industrial automation. The 2173B4002W variant features 1/2-inch inlet/outlet ports and 3/8-inch exhaust ports, with a 24 VDC solenoid (W code). Electrical data from Ross catalogs lists 14 watts of DC coil power, with 87 VA inrush and 30 VA holding at 50/60 Hz. This model is CRN-listed in Canada as T2173B4002W, confirming its suitability for use in Canadian safety-certified systems and its compatibility with standard 21 Series configurations.
