MVR41018 Adjustable Injector 1.8 mm | 4060 PSI MV Line

MVR41018 – AR 1.8 mm Adjustable Chemical Injector | 4,060 PSI

The AR MVR41018 is a professional-grade adjustable Venturi chemical injector designed to deliver consistent detergent draw, balanced flow, and reliable performance across demanding high-pressure cleaning applications. Equipped with a 1.8 mm orifice and rated for pressures up to 4,060 PSI, this injector provides stable chemical induction on systems operating between 2.5 and 5.5 GPM.

Its precision-machined Venturi chamber creates a controlled low-pressure zone that pulls detergent through the pickup hose and mixes it into the water stream at predictable ratios. Operators benefit from uniform solution delivery from the start to the end of each job, even across long hose runs.

Precision Metering & Flow Control

The integrated metering knob allows smooth, incremental adjustment without tools, enabling users to fine-tune chemical strength based on soil level, surface type, or product requirements. Dial down for light-duty cleaning and delicate finishes, or increase concentration for road film, oils, grease, and heavy organic buildup.

Because it operates on the Venturi principle, chemical draw activates automatically with a low-pressure soap nozzle and disengages instantly when a high-pressure tip is installed. This supports seamless transitions between detergent application and rinse without manual valve changes.

Engineered for Professional Duty

Constructed with a corrosion-resistant brass body and stainless-steel internal components, the MVR41018 withstands chemical exposure, vibration, and daily wear in mobile rigs, wash bays, fleet operations, and agricultural or light industrial environments.

The refined internal geometry reduces turbulence and unnecessary restriction, helping maintain pump stability and supporting consistent performance from downstream tools.

A built-in check valve prevents backflow into the detergent container during pressure changes or shutdown, protecting chemical integrity and keeping the pickup line clean between uses.

Installation & Operation

Install the MVR41018 injector downstream of the pump—typically after the unloader—using standard threaded or quick-connect fittings. Follow the cast flow-direction arrow during installation, route the suction line to a vented detergent container, and attach a clean intake screen for debris protection.

For best performance, keep the detergent container close to the injector to minimize lift. Pair with correctly sized low-pressure tips to ensure proper Venturi operation, document common metering settings for repeat jobs, and verify airtight suction connections.

Maintenance

• Flush clean water through the injector after each detergent application
• Inspect and clean the intake screen regularly
• Replace aged or brittle pickup tubing to maintain reliable suction
• Verify the check valve remains free of debris and sealing properly

Key Features & Benefits

• MVR41018 1.8 mm calibrated orifice for stable detergent draw
• Rated up to 4,060 PSI for high-pressure systems
• Optimized for 2.5–5.5 GPM pressure washers
• Adjustable metering knob for precise concentration control
• Venturi design automatically engages and disengages chemical draw
• Corrosion-resistant brass body with stainless-steel internals
• Integrated check valve prevents backflow into detergent container
• Low-restriction internal geometry for efficient system performance
• Reliable operation in mobile wash rigs, fleet maintenance, agriculture, and industrial cleaning

Common Applications

• Fleet and vehicle washing
• Mobile detailing and mobile wash rigs
• Agricultural equipment cleaning
• Facility and grounds maintenance
• Light industrial cleaning programs
• Commercial and residential wash services

MVR41018 Adjustable Injector 1.8 mm | 4060 PSI MV Line

The AR MVR41018 adjustable chemical injector combines a precision 1.8 mm orifice, rugged brass construction, stainless internal components, and a dependable check-valve system to deliver consistent detergent feed and long-lasting performance. Designed for high-pressure systems and professional workflows, it ensures stable chemical draw, efficient system operation, and reliable cleaning results on every job.