side view of cylidrical brass valve with a port on the left side

$73.65

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

Name: Humphrey | 125A-Series, Diaphragm Poppet Air Piloted Valve, 1/8 NPSF, 3 Ports / 2 Positions, BUNA Brass | 125A-3-11-20-BRB
Brand: Humphrey Products
SKU: 125A-3-11-20-BRB
Price: 73.65 USD
Availability: InStock

Mfr. Part #: 125A-3-11-20-BRB

Ships same day with standard 2-day shipping if ordered M-F before 3PM PT.

Pickup Available at Livermore

Humphrey 125A-3-11-20-BRB is an air-piloted, normally open 3-way pneumatic valve offering reliable control, compact design, and dependable industrial performance.

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.

Specification	Details
Part Number	125A-3-11-20-BRB
Manufacturer	Humphrey
Valve Type	Air-Piloted 3-Way Valve
Operation	Normally Open
Pilot Type	Single Air Pilot with Spring Return
Port Size	1/8 in NPT
Orifice Size	Approx. 0.125 in (Cv ≈ 0.30)
Media	Air or Inert Gas
Pressure Range	0 to 125 PSI
Temperature Range	Approx. -20°F to 225°F
Design Features	Diaphragm Poppet, Bubble-Tight, No Lubrication Required
Construction	Compact, Lightweight