Bunsen Burner with Stop Cock (Pack of 2)
Product Code : SCL-CLE-11942
The StemAids Bunsen Burner with Stopcock is an upgraded laboratory heating instrument designed for enhanced safety and precise gas regulation. Unlike standard burners that rely solely on a central gas tap, this model features an integrated needle-valve stopcock (gas adjustment screw) at the base. This allows the user to fine-tune the flame height and intensity directly at the burner, providing a secondary failsafe and superior control for delicate heating tasks. Manufactured from heavy-duty brass and cast iron, this Pack of 2 is ideal for chemistry and physics workstations requiring reliable, high-temperature heat sources.
Technical Specifications
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Tender Specification |
OEM Technical Detail |
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Material |
Chrome-plated Brass burner tube; Cast Iron heavy-duty base |
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Control Mechanism |
Integrated Brass Needle Valve (Stopcock) for gas flow |
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Air Regulation |
Rotatable Aluminum collar (sleeved) for oxygen mix |
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Gas Compatibility |
Available in LPG (Propane/Butane) or Natural Gas (Methane) variants |
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Base Design |
Circular or Hexagonal "Anti-Tip" weighted base |
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Inlet |
Ribbed serrated connector for secure 8mm tubing attachment |
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Max Temperature |
Approx. 1100?C–1300?C (depending on fuel type) |
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Packaging |
Standard Pack of 2 Units |
Key Pedagogical & Laboratory Outcomes
- Combustion Interface: Facilitates student understanding of Stoichiometry and Oxidation. Learners identify how the ratio of gas to air creates different flame types (luminous vs. non-luminous).
- Thermal Quantification: Enables precise Boiling and Melting Point Analysis; the stopcock allows learners to apply subtle heat adjustments that are impossible with standard gas taps, preventing "flash-boiling."
- Flame Chemistry Analysis: Supports the analysis of "Flame Anatomy"; students evaluate the hottest part of the flame (the tip of the inner blue cone) for efficient heating.
- Safety Evaluation: Provides an enhanced platform for evaluating laboratory hazards; the local stopcock allows for an immediate "emergency shut-off" at the bench level without reaching toward the gas source near the flame.
The Stopcock Advantage
- Precision Control: The needle valve provides "micro-adjustment" of the flame height, which is essential for controlled distillations or sensitive glass-bending.
- Secondary Safety: If the main lab gas tap is distant, the integrated stopcock acts as a primary control point, reducing the risk of accidental ignition.
- Gas Efficiency: Users can turn the burner down to a pilot flame between tasks without extinguishing it completely, saving fuel while maintaining readiness.
International Logistics & Compliance
StemAids ensures comprehensive OEM readiness for global institutional procurement:
- Packaging: Export-grade, reinforced packaging. Burners are heavy; the Pack of 2 is nested in high-density foam to prevent the cast iron bases from damaging the brass tubes or stopcock threads during transit.
- Documentation: Includes Manufacturer’s Authorization Form (MAF), Certificate of Conformance (CoC), and Pressure Test Certification.
- Durability: The chrome plating is designed to resist the corrosive effects of chemical spills and high-heat oxidation over years of daily classroom use.
Direct OEM Sourcing Advantages
Procuring StemAids Bunsen Burners directly ensures vertical manufacturing control:
- Leak-Proof Needle Valves: Direct oversight ensures the brass stopcocks are precision-machined to prevent gas leakage at high manifold pressures.
- Stabilized Bases: We ensure the center of gravity is exceptionally low, meeting international safety standards for tip-resistance (15? tilt test).
- Direct Factory Inventory: Guaranteed availability of replacement jets, air collars, and high-temperature gas tubing (1m or 2m lengths).
- Quality Assurance: Every burner is "flame-tested" before packaging to ensure the air collar rotates smoothly and the stopcock provides a linear gas response.