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Silver aluminium 4-way manual air valve with roller lever and 1/4 NPT ports

Parker

Parker 520A11000 4-Way Manual Air Control Valve 1/4 NPT

SKU CH-B1XE-MPW5N

Directs compressed air flow through a 4-way, 2-position valve with 1/4 NPT ports and spring return

  • Manual 4-way control directs airflow precisely
  • 1/4 NPT connection fits standard pneumatic lines
  • 150 psi rating handles demanding compressed-air systems
  • 83 cfm flow suits compact air tools
  • Aluminum body resists corrosion for long service

Valve Purpose & Audience

The Parker 520A11000 is a four-way, two-position manual air control valve built for pneumatic circuits that require directional flow selection. It suits technicians and engineers assembling or maintaining compressed-air systems where a simple lever or roller actuator switches between two output paths.

Decisive Specification

The valve uses a 1/4 inch NPT port size and a roller-spring actuator, so it only fits plumbing threaded to that standard and actuated by a moving cam or lever. Systems with different thread forms, port diameters, or solenoid-only actuation cannot use this unit without adapters or redesign.

Capacity & Limits

Rated at 0.83 cfm with a maximum pressure of 150 psi, the valve handles modest flow rates typical of small cylinders or pilot circuits. Operation is guaranteed between 32 and 175 degrees F; beyond that range sealing materials may degrade and the aluminium body could lose dimensional stability.

Highlights

  • Manual 4-way control directs airflow precisely
  • 1/4 NPT connection fits standard pneumatic lines
  • 150 psi rating handles demanding compressed-air systems
  • 83 cfm flow suits compact air tools
  • Aluminum body resists corrosion for long service

Specifications

BrandPARKER

Questions about this item

What does the 0.83 cfm rating mean when the valve is installed in a working air line?

The 0.83 cfm figure is the maximum flow at the 150 psi pressure rating; actual flow will vary with the supply pressure in your system.

How does the 1/4 NPT connection limit the valve's flow capacity?

The 1/4 NPT port size and the 0.8 Cv coefficient set the flow limit; the valve is rated for 0.83 cfm at 150 psi through these ports.

What are the physical dimensions needed to mount this valve?

The valve measures 5 1/8 in long, 1 5/8 in high and 1 1/16 in wide with an aluminum body for panel or inline mounting.

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