Mazzoni White Spring for 300 bar Unloaders

Mazzoni White Spring for 300 bar Unloaders

The Mazzoni white spring is a precision-engineered replacement component designed specifically for 300 bar (≈ 4,350 psi) high-pressure unloader valves. Using the correct spring ensures accurate pressure regulation, safe bypass operation and long-term system reliability in demanding commercial pressure-washer rigs.

Key Features

• White coded spring compatible with Mazzoni 300 bar unloader series

• Calibrated to maintain correct set-pressure and bypass activation at approx. 300 bar

• Long-life steel construction with corrosion-resistant finish for frequent service use

• Quick-change drop-in part-fit for Mazzoni bypass/unloader valves, reducing downtime

• Essential for mobile, trailer or fixed professional cleaning systems where high flows and pressures are standard

• Helps maintain system safety by ensuring reliable unloader actuation and pressure relief

Technical Specifications

Part: White Spring (300 bar calibration)

Application: Mazzoni high-pressure unloader valves rated 300 bar

Function: Sets and stabilises bypass/unload pressure in high-pressure systems

Compatibility: Check valve tag and spring-colour code on Mazzoni unloader; white spring corresponds to 300 bar range

Material: Hardened spring-steel with corrosion-resistant coating

A professional-grade calibration spring designed to restore correct pressure performance and maintain operational safety in Mazzoni 300 bar unloader valves.