WHFZN CW219300AV Pressure Switch for Campbell Hausfeld Air Compressors | 120/155 PSI

Overview

WHFZN CW219300AV is a versatile 4-port, 2-pole pressure switch designed for Campbell Hausfeld air compressors. It activates at 120 psi and deactivates at 155 psi, helping to stabilize the system during demanding cycles. A 1/4 inch quick disconnect fitting for the check valve line and a 4-port FNPT inlet support flexible plumbing, making it a practical replacement option in many setups. The switch supports both 120 and 240 volt applications and carries a substantial current rating for common compressor configurations.

Key specifications and what they mean

• Replace Part Number: CW219300AV
• 1/4 inch quick disconnect for check valve line; 4 port inlet
• Current rating: 26 AMPS; compatible with 120 and 240 volt circuits
• Cuts in at 120 psi; cuts out at 155 psi
• If you are unsure this is the correct switch, share your model type and serial number for assistance

Why this switch can matter in practice

In everyday use, a reliable pressure switch helps maintain a steady operating pressure, supports smoother starts, and can reduce unnecessary cycling. If your air compressor keeps restarting or the unloader valve on the pressure switch releases air unexpectedly, the problem might be related to the check valve. Replacing the switch with CW219300AV can restore expected cycling behavior and provide a clear diagnostic path for system maintenance.

The combination of a 4-port configuration and a 1/4 inch quick disconnect makes it feasible to adapt this part to a range of Campbell Hausfeld installations. While the product is designed for standard 120/240 volt environments, actual performance depends on the overall system design and wiring compatibility.

Practical benefits and installation notes

• Potential to improve pressure consistency across loading and unloading phases
• Simple replacement option with straightforward compatibility checks
• Adapters or additional fittings can accommodate diverse plumbing layouts
• Clear part identification aids quick ordering and service planning

For best results, verify your model type and serial number before ordering. This helps ensure that the CW219300AV aligns with your Campbell Hausfeld configuration and electrical setup. The product is designed to integrate smoothly with established air lines while offering a reliable cycling profile that matches typical compressor operation patterns.