Graco 127557 22mm Gauge Kit

Graco 127557 22 mm Gauge Kit – Precision Fluid Pressure Monitor

The Graco 127557 22 mm Gauge Kit provides reliable and accurate pressure monitoring for high-performance airless sprayer systems. Built with a stainless-steel diaphragm and rated for up to 5,000 psi, this gauge is engineered for tough job-site conditions and demanding coating applications.

Key Features

• High-accuracy 22 mm diaphragm gauge with ±1% full-scale precision
• Corrosion-resistant stainless steel and brass housing
• Optimized flow path to reduce pressure surges and maintain pump efficiency
• Compact design suitable for retrofitting into most spray rigs
• Compatible with a wide range of fluid viscosities and aggressive chemicals

Benefits

• Improves pressure control for consistent spray performance
• Provides real-time pump pressure monitoring to help prevent overloads
• Corrosion-resistant materials extend service life in harsh environments
• Simple installation without major modifications or adapters

Compatible Machines

These model numbers come directly from Graco parts documentation, confirming compatibility for the 127557 gauge.

How to Install

1. Depressurize the system fully before installation.
2. Thread the gauge into a 1/4″ NPT(F) fluid port on the pump manifold.
3. Tighten according to torque specifications to avoid diaphragm damage.
4. Flush the system to remove trapped debris after installation.
5. Verify accuracy using a reference or calibrated pressure source.

Maintenance Tips

• Inspect the lens regularly for scratches or clouding
• Calibrate or verify pressure readings periodically to maintain accuracy
• Use clean fluid lines when flushing harsh solvents to protect the diaphragm
• Relieve pressure during long-term storage to reduce diaphragm stress

Applications

This gauge kit is ideal for:

• Contractor airless sprayers used for high-pressure coatings
• Industrial systems requiring precise fluid pressure readings
• Retrofitting older spray rigs to improve pressure control and safety

Frequently Asked Questions

Summary

The Graco 127557 22 mm Gauge Kit is a reliable upgrade for airless sprayers needing accurate, durable, high-pressure fluid monitoring. With rugged construction, excellent precision, and straightforward installation, it delivers dependable performance for both new systems and retrofit applications.