Adjustable Bunsen Gas Burner with Control Valve (Set of 2)

Product Code : SCL-CL-12018

The Bunsen Burner with Stop Cock (Pack of 2) is a pair of high-temperature ambient gas burners featuring integrated gas control valves used for safe heating, sterilization, and combustion in laboratory environments. Engineered for chemistry educators, industrial technicians, and research scientists, this dual burner pack provides direct, localized fuel flow control for maximum operational efficiency.

Product Description

The Bunsen Burner with Stop Cock (Pack of 2) from Science Lab Supplies delivers exceptional thermal performance and reliable flame control for standard laboratory tasks. Manufactured with a heavy-duty, die-cast zinc alloy base and a durable nickel-plated brass mixing tube, each burner unit resists structural tipping and high-temperature chemical corrosion. The integrated brass stop cock valve allows operators to adjust or shut down fuel intake directly at the burner source without reaching for distant main utility lines.

This professional-grade heating system serves as a primary safety upgrade for modern, high-activity laboratories. By integrating a local needle-valve stop cock, this configuration allows technicians to instantly modulate flame heights during delicate distillations or qualitative analysis procedures. It pairs seamlessly with standard laboratory glassware, providing university chemistry departments, clinical diagnostics centers, and industrial test labs with a highly controllable and long-lasting thermal execution kit.

Key Features

• Integrated Gas Stop Cock: Features a built-in brass needle valve that enables rapid flame adjustments and local gas shutoff directly on the burner frame.
• Stable Die-Cast Base: Built with an expanded, weighted zinc alloy footprint that provides excellent physical stability to prevent accidental tip-overs.
• Precision Air Sleeve: Equipped with a rotatable aluminum collar to modulate internal oxygen ratios, allowing quick transitions between flame profiles.
• Premium Metal Construction: The main mixing column is forged from nickel-plated brass to resist oxidation, structural scaling, and high thermal fatigue.
• Serrated Inlet Tube: Features an 8 mm multi-tier ribbed brass hose connector to anchor flexible gas lines securely and prevent leakage.
• High Thermal Capacity: Engineered to produce clean-burning, concentrated blue flames that safely reach operational temperatures up to 1200°C.

Technical Specifications

What's Included in the Kit

• 2 x Bunsen Burner Units with Integrated Stop Cocks
• 2 x Rotatable Aluminum Air Sleeves
• 1 x Gas Flow Calibration Guide and Safe Operating Manual

Applications / Uses

• Heating chemical reagents, volatile mixtures, and solutions inside borosilicate tubes or flasks safely.
• Sterilizing metal inoculation loops, spreading bars, and biological dissecting tools in clinical microbiology workflows.
• Serving as a highly controllable open-flame heat module within advanced institutional chemistry science kits.
• Performing routine flame test spectroscopy to identify metallic cations by characteristic light emissions.
• Mounting beneath standard support tripods alongside alternative heating instruments for complex fractional distillations.

How to Use the Bunsen Burner with Stop Cock (Pack of 2)

1. Inspect both burner units to ensure the mixing columns are clear of debris and the serrated inlets are free of dust blockages.
2. Push a certified, heat-resistant laboratory gas hose firmly onto the 8 mm serrated inlet tube until it matches the base rim.
3. Turn the integrated brass stop cock valve completely clockwise to the closed position and close the aluminum air sleeve fully.
4. Turn on the primary main gas supply line valve, open the burner's integrated stop cock slightly counter-clockwise, and immediately introduce a spark over the tube opening.
5. Regulate the flame height by turning the built-in stop cock, then rotate the air sleeve collar slowly until a clear, multi-coned blue flame stabilizes.

Safety Handling Note: Always shut off the primary gas line utility valve first when ending operations, rather than relying solely on the burner's stop cock. Never leave an active, open-flame burner unattended under any circumstances.

Care & Maintenance

• Orifice Clarification: Periodically clear the internal gas jet orifice using a fine wire cleaning pin to remove carbon scaling or dust particles.
• Residue Cleanup: Wipe down the nickel-plated brass tube with a damp cloth after it cools completely to remove spilled chemical salts or stains.
• Dry Environment Storage: Store the burners upright inside a dedicated, low-humidity storage cabinet to protect the internal valve threads from tarnish.

Why Choose Science Lab Supplies

Science Lab Supplies is a premier global manufacturer and trusted exporter of high-precision laboratory hardware, institutional didactic setups, and STEM training resources. Drawing from decades of advanced engineering experience, we fabricate durable equipment that complies strictly with international quality and structural safety parameters. Our expansive distribution network ensures reliable global supply capabilities to fulfill large shipments for school districts, universities, and commercial test centers seamlessly. To complement your workspace inventory, we also produce a comprehensive line of durable laboratory plasticware configurations.

Frequently Asked Questions

What is a Bunsen Burner with Stop Cock (Pack of 2) used for?

It is a dual-burner kit designed to supply an adjustable, localized open flame for heating chemicals, boiling solutions, and sterilizing biological equipment. The package includes two full units, making it ideal for multi-station student benches or industrial testing lines.

What are the benefits of having an integrated stop cock on the burner?

An integrated stop cock acts as a local needle valve, allowing the operator to adjust flame height or execute a quick gas shutoff directly at the burner body without needing to reach for the main utility line valve.

What type of gas utility line does this burner require?

This standard model is factory-calibrated for natural gas line configurations, though specialized configurations for Liquefied Petroleum Gas (LPG/Propane) can be selected depending on your facility's utility layout.

Can the flame temperature be adjusted manually?

Yes, by turning the integrated stop cock valve and adjusting the rotatable aluminum air collar sleeve, you control the fuel-to-oxygen ratio to switch between a low-heat yellow flame and a high-intensity blue flame reaching up to 1200°C.

What hose size is needed to connect this burner unit safely?

The factory-molded serrated brass inlet connector is engineered to fit standard 8 mm (approximately 5/16 inch) inner diameter flexible laboratory gas tubing securely.

Check out our complete line of robust gas fixtures and heat regulators by visiting our specialized heating instruments category page today to maximize safety inside your facility.