SMC NAV4000-N04-5DZ Solenoid Valve Soft Start

The NAV4000-N04-5DZ is a direct-operated soft-start valve from SMC’s NAV4000 family that gradually ramps pneumatic pressure to protect downstream components from startup shocks. It runs on a 24 VDC coil and is a 2-position valve with 1/2 in NPT ports, rated for 0.2 to 1 MPa (about 2–10 bar) of supply pressure. Flow capacity is specified as Cv 3.6/4.49, reflecting performance across configurations, and the unit includes an indicator light for status feedback plus a surge suppressor to guard the coil against voltage spikes. This configuration is well-suited for controlling pneumatic actuators, grippers, clamps, and other automation elements where controlled pressurization at start improves cycle life and repeatability. The NAV4000-N04-5DZ provides a compact, direct-acting solution that integrates easily with standard 1/2 in pneumatic plumbing and 24 VDC control signals for reliable, straightforward installation in industrial pneumatic systems.