Product Overview

The ST66 Chemical Metering Valve is a high-quality dosing valve commonly fitted to Ehrle hot water pressure washers and similar professional cleaning systems. Designed for accurate and repeatable chemical control, it features a distinctive red adjustment knob with a numbered control disc for easy and precise regulation of detergent flow.

Equipped with two 6mm plastic hose barbs, the ST66 allows effortless switching between two separate chemical sources — perfect for setups that require multiple detergents or cleaning solutions. Built for durability and consistency, this valve ensures optimal dilution and efficient cleaning every time.

Key Features

✅ Accurate chemical dosing – red top with numbered disc for precise flow control
✅ Dual chemical pickup – two 6mm hose barbs for easy selection between two products
✅ Professional-grade design – built for demanding hot water pressure washer systems
✅ Ehrle compatible – widely used across Ehrle cleaning equipment
✅ Reliable performance – ensures consistent detergent dilution and cleaning results

Why Choose This Product?

The ST66 Chemical Metering Valve is engineered for reliability and precision in industrial cleaning applications. Its dual chemical pickup function streamlines your workflow, while the numbered control disc enables consistent, repeatable chemical settings — ideal for achieving perfect dilution every time. Trusted by professionals and compatible with Ehrle hot water pressure washers, it’s a durable and efficient choice for chemical metering control.

Order Now

Upgrade your system with the ST66 Chemical Metering Valve for dependable chemical dosing and enhanced cleaning performance.