The 4H230C 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, three-position, closed center valves are generally used to stop a double acting cylinder in partial stroke, with all ports shut off at the center position. This valve is available with either a Detented (-M) or Non-Detented (-S) lever.
| Operation | 4-Way, 5-Port, 3-Position Lever, Closed Center 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 | ||

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