Humphrey | 125A-Series, Diaphragm Poppet Air Piloted Valve, 1/8 NPSF, 3 Ports / 2 Positions, BUNA Brass | 125A-3-11-20-BRB

Common applications:

• Pneumatic directional control in automated machinery and tooling.
• Controlling airflow in industrial pneumatic systems.
• Air pilot logic in control panels and sequencing circuits.
• Fast cycling air actuated operations (up to ~600 cycles/min).

Key features:

• Small diaphragm poppet, air-piloted, 3-way valve.
• Normally open, single air pilot with spring return.
• 1/8" NPT ports with ~0.125" orifice (Cv ~0.30).
• Operates on air or inert gas media.
• Pressure range: 0–125 PSI (0–8.6 bar).
• Compact size, lightweight construction.
• No lubrication required; bubble-tight sealing.
• Temperature range approximately −20 °F to 225 °F.
• Wetted materials typically include zinc-plated steel, brass, Buna-N.