The 4R210-1/4 is a manual pneumatic directional valve with a four-way operation & five ports (P = Pressure, A = Outlet 1, B = Outlet 2, EA = Exhaust for port A, EB = Exhaust for port B). Four-way, two-position valves are generally used to fully extend and retract double acting cylinders, or in applications with similar operation.

4R210-1/4M/S
Operation	4-Way, 5-Port, 2-Position Push / Pull Handle / Plunger M = Detented S = Non-Detented (Spring Return)	M =
Type	Hand Operated Directional Air Valve	S =
Port Size	1/4″ NPT (1/8″ Exhaust Ports)
Operating Pressure	0 to 116 PSI
Operating Temperature	14 to 140°F (-10 to 60°C)
Action	Direct Acting
Flow Coefficient (Cv)	0.89
Working Medium	40 Micron Filtered Air or Inert Gas
Body Material	Anodized Aluminum
Seal Material	NBR (Buna N)
Lubrication	Not Required