Blackstone 5 L/h Chemical Dosing Pump

Blackstone 5 L/h Chemical Dosing Pump – Precision Solenoid Diaphragm Technology

Brand Chemical Supplies provides the Blackstone BL Series Dosing Pump, a rugged and reliable solution for accurate chemical injection in water treatment, industrial processing, and agricultural systems. Specifically designed to handle a wide range of chemicals with high precision, this electromagnetic diaphragm pump is the industry standard for consistency and ease of maintenance in the South African market.

Technical Specifications

Key Features & Benefits

• Superior Chemical Compatibility: The pump head is constructed from high-grade materials like PVDF and a PTFE diaphragm, making it resistant to aggressive chemicals including chlorine, acids, and liquid fertilizers.

• Positive Displacement Precision: Unlike standard centrifugal pumps, the Blackstone solenoid action ensures that the volume delivered remains constant even against varying backpressures.

• Simple Manual Control: Features a front-facing dial that allows the operator to adjust the stroke frequency from 0\% to 100\%, providing granular control over the dosing volume.

• Rugged Industrial Housing: The fiberglass-reinforced polypropylene housing is hermetically sealed (IP65), protecting the internal electronics from chemical fumes, spills, and humid environments.

• Minimal Maintenance: With only one moving part (the diaphragm), there are no motors, gears, or lubricants to fail, significantly reducing long-term operational costs.

• Self-Priming: Capable of priming itself even when starting with a dry suction line, ensuring reliable operation after chemical drum changes.

Primary Applications

• Water Treatment: Precise injection of sodium hypochlorite (chlorine) for disinfection or flocculants for water clarification.

• Cooling Towers & Boilers: Dosing scale and corrosion inhibitors to protect expensive industrial infrastructure.

• Agriculture & Fertigation: Injecting liquid nutrients and pH adjusters directly into irrigation lines.

• Swimming Pool Maintenance: Automated pH and chlorine control for commercial and large residential pools.

• Wastewater Management: Neutralizing acidic or alkaline effluent before discharge.

Installation & Integration

• Mounting: Designed for wall mounting or placement on top of a chemical storage tank using the integrated mounting holes.

• Tubing: Typically supplied with 4/6 mm or 5/8 mm suction and discharge tubing.

• Safety: Always install a foot valve (with strainer) in the chemical tank and an injection valve at the point of entry into the main pressurized line