Parker B521BB549C Stacking Solenoid Valve 4-way 24VDC

Product Description

The PARKER B521BB549C is a 4-way, 2-position stacking solenoid valve designed for directional control in pneumatic systems. It uses a double solenoid actuator with solenoid return, providing positive control in both directions without relying on a spring to reset the spool. The valve carries a Cv rating of 1.4 and operates on 24 volts DC, with a maximum working pressure of 145 psi. At 0.8 pounds, it is compact enough for panel or manifold mounting. NEMA 4 enclosure classification makes it suitable for wet or wash-down environments. Licensed HVAC, automation, or industrial technicians typically specify this valve in compressed-air control circuits.

This valve is suited for directional control applications in light industrial and commercial pneumatic systems. The 4-way body-ported design allows it to direct airflow to actuators, cylinders, or other pneumatic components through 1/4-inch inlet and 1/4-inch outlet ports. The stacking configuration allows multiple valves to be assembled in manifold banks, reducing plumbing complexity in multi-circuit systems. Operating temperature range spans from 5 degrees F to 120 degrees F, covering most indoor industrial environments.

Key Features

• Double solenoid actuation with solenoid return for positive two-directional control
• 4-way, 2-position body-ported valve design for directional pneumatic control
• 1.4 Cv flow rating supports moderate-flow pneumatic circuit requirements
• 24 VDC coil voltage for integration with standard low-voltage control systems
• NEMA 4 rated enclosure for use in wet or wash-down locations
• Stacking design enables compact manifold assembly for multi-circuit installations

Compatibility

Designed as a stacking-style directional control valve compatible with 4-way pneumatic manifold systems using 1/4-inch ported body connections and 24 VDC control voltage.

Installation Notes

Installation should be performed by a qualified technician familiar with pneumatic directional control systems and applicable codes. De-energize the control circuit and bleed system pressure before removing or installing the valve. Verify that supply voltage matches the 24 VDC coil rating before energizing. Confirm port orientation and manifold sealing surfaces are clean and undamaged before assembly.