Brush 90cm Stainless Steel Tube

Dual-ended flexible pipe cleaning brush. In school science laboratories, the dual-ended flexible pipe brush is a vital sanitation and maintenance tool. Because laboratory experiments often involve viscous liquids, chemical residues, and biological growth, keeping narrow glassware clean is essential for accurate results.

Material Construction

• Bristles: High-quality, durable soft nylon that scrapes without scratching.
• Core Rod: Wound stainless steel wire designed to bend around tight pipe radiuses.

Structural Design

• Dual-Ended System: Features two different-sized brush heads to accommodate multiple pipe diameters.
• Long Reach: Highly flexible core allows the brush to travel deep into curved and coiled tubing systems.

Primary School Laboratory Uses

• Condenser Tube Maintenance: Cleans the internal cooling coils and narrow glass jackets of distillation condensers used in chemistry experiments.
• Burette and Pipette Scrubbing: Safely reaches down the long, narrow shafts of volumetric glass burettes to remove chemical film without scratching the calibrated markings.
• Glass Tubing and Connectors: Scrubs out black carbon deposits or chemical residue from the narrow glass bypass tubes used in gas-collection experiments.
• Wash Bottle Spout Cleaning: Clears out algae or mineral buildup from the narrow, curved delivery straws of plastic laboratory wash bottles.
• Rubber and Silicone Hosing: Cleans the interior of flexible gas hoses connected to Bunsen burners or water lines connected to vacuum aspirators.

Why Schools Use This Specific Brush

• Prevents Cross-Contamination: Thoroughly removing chemical residues ensures that students' next chemistry experiments are not ruined by leftover contaminants.
• Reduces Glassware Breakage: The highly flexible coiled wire bends smoothly inside curved glass, preventing students or lab technicians from accidentally snapping expensive glass pieces.
• Fits Multiple Sizes: The dual-ended design gives school lab assistants two different brush sizes on a single tool, making it highly versatile for prepping carts of mixed equipment.

Specifications

• Total Stem Length: Typically ranges from 155 cm to 170 cm (61 to 67 inches), allowing it to snake completely through long, coiled laboratory or aquarium hoses.
• Large Brush Head: 30 mm (1.2 inches) in diameter with a length of roughly 50 mm to 65 mm. Optimized for wide drains, inlet tubes, and volumetric burettes.
• Small Brush Head: 15 mm to 18 mm (0.6 to 0.7 inches) in diameter with a length of roughly 45 mm to 65 mm. Optimized for narrow glass conduits, thin pipettes, and delivery nozzles.
• Core Stem Wire: Made of high-tensile wound stainless steel spring wire. It is rust-proof, anti-corrosive against mild lab detergents, and highly elastic so it can navigate U-bends and angles under 90 degrees without deforming.
• Bristle Material: Made of food-grade, high-density soft nylon silk threads. The tips are cut and rounded to prevent scratching the inner walls of glass, acrylic, or soft PVC tubing.
• Product of China