Hoffman Clips
$ 5.57 Original price was: $ 5.57.$ 5.42Current price is: $ 5.42.
Hoffman Clips are laboratory tools used to control the flow of liquids or gases through flexible tubing. Designed with a screw mechanism, these clips compress tubing to restrict, regulate, or completely stop the passage of fluids. Made from durable metals like nickel-plated brass or stainless steel, Hoffman Clips are chemically resistant, reusable, and adjustable to fit different tubing sizes. Commonly used in laboratory setups involving distillation, filtration, and fluid transfer, they provide a simple and effective method for managing fluid control without disconnecting the tubing.
Hoffman Clips
Primary Uses
- Laboratory Fluid Control
- Regulating the flow of liquids or gases through rubber or plastic tubing.
- Used in filtration setups to control drainage or flow rate.
- Controlling reagent delivery in titration or chemical transfer systems.
- Managing flow in distillation apparatus or separatory funnels.
- Temporarily stopping flow without detaching tubing from equipment.
Secondary Uses
- Industrial and Educational Applications
- Flow regulation in pilot-scale and quality control setups.
- Teaching fluid dynamics and pressure systems in laboratory experiments.
- Applied in bioprocessing labs for managing nutrient or waste flow lines.
- Used in aquariums or water systems for hobbyist or small-scale industrial purposes.
1.Basic Identification Attributes
- Material: Stainless steel or nickel-plated brass
- Design: Adjustable screw clamp for various tubing diameters
- Compatibility: Suitable for flexible rubber, silicone, or PVC tubing
2.Physical & Chemical Properties
- Chemically resistant and non-reactive with most lab-grade fluids
- Durable and corrosion-resistant surface
3.Safety & Hazard Attributes
- Mechanical part; care required to avoid pinching fingers during adjustment
- Over-tightening may damage tubing or cause leaks
4.Storage & Handling Attributes
- Store in dry environments to avoid corrosion (especially brass versions)
- Clean after use to remove chemical residue
5.Regulatory & Compliance Attributes
- Manufactured according to laboratory hardware and safety equipment standards
6.Environmental & Health Impact
- Reusable and long-lasting, reducing equipment waste
- No hazardous materials used in construction
Safety Handling Precautions
- Do not force the clip beyond tubing capacity
- Ensure tubing is properly aligned to prevent accidental leaks
First Aid Measures
- For pinching injuries, apply cold compress and seek medical attention if severe
Firefighting Measures
- Non-flammable
- Use appropriate extinguishing agents for surrounding materials if involved in fire
Related products
Absorption Tower
An Absorption Tower is a vertical vessel used in industrial processes to remove specific components from gas streams by contact with a liquid solvent. This equipment facilitates mass transfer between the gas and liquid phases, allowing targeted pollutants or valuable compounds to be absorbed efficiently. Absorption Towers are commonly employed in chemical plants, refineries, and environmental control systems for gas scrubbing, purification, and recovery applications. They are designed for optimal gas-liquid contact, often using packing materials or trays to enhance surface area and improve absorption efficiency.
Barlows Wheel Apparatus
Barlows Wheel Apparatus is a classic physics demonstration device used to illustrate electromagnetic effects, specifically the principles of electric motors and the interaction between magnetic fields and electric current. It consists of a rotating wheel in contact with an electric circuit and a magnetic field, demonstrating motion generated by electromagnetic forces. The apparatus is widely used in educational laboratories to teach fundamental concepts of electromagnetism and motor action, as well as in industrial training for understanding motor components and operation.
Boyle’s Law Apparatus
Boyle’s Law Apparatus is a precision laboratory instrument designed to demonstrate and verify Boyle’s Law, which states that the pressure of a given mass of gas is inversely proportional to its volume at constant temperature. The apparatus typically consists of a sealed cylinder with a movable piston or syringe, pressure gauge, and volume scale, allowing students and researchers to observe and measure the relationship between pressure and volume in gases. It is widely used in educational and research laboratories to teach fundamental gas laws and perform experimental validation of theoretical principles.
Complete optical bench
Product Description
Complete Optical Bench is a precision laboratory apparatus designed to facilitate experiments involving optics, such as the study of lenses, mirrors, light refraction, reflection, and focal lengths. It consists of a rigid, graduated base rail with movable holders for optical components like lenses, mirrors, prisms, and light sources. The modular design allows flexible setup of various optical experiments, making it an essential tool in physics laboratories for teaching and research.
Contact key
Product Description
The Contact Key is a fundamental switching device used in electrical circuits to manually open or close the flow of current. Commonly used in physics laboratories for demonstration and experimentation with circuits, it enables controlled activation of current for brief or sustained durations. Made from durable, conductive metals with insulating bases, Contact Keys are essential components in circuit testing, timing devices, and low-voltage experimental setups.
Dip Needle
A Dip Needle is a finely balanced magnetic needle used to measure the magnetic dip or inclination angle of the Earth’s magnetic field. Mounted to pivot freely in a vertical plane, the needle aligns itself with the Earth’s magnetic field lines, enabling precise determination of the angle between the horizontal plane and magnetic field direction. Dip Needles are essential instruments in geophysics, navigation, and laboratory studies of magnetism. They provide crucial data for mapping magnetic variations, compass calibration, and educational demonstrations. Typically constructed with magnetized steel or alloy, dip needles are designed for sensitivity and durability in field and lab environments.
Dip Needle Complete
Dip Needle Complete is a fully assembled and calibrated magnetic dip measurement instrument used for precise determination of the Earth’s magnetic inclination angle. This complete apparatus includes a magnetized dip needle mounted on a low-friction pivot within a protective housing, accompanied by a graduated circular scale for accurate angular readings. The instrument is designed for use in geophysical surveys, educational labs, and research institutions to study Earth’s magnetic field behavior. The complete setup ensures reliable, repeatable measurements with enhanced durability and ease of use, suitable for both field and laboratory environments.
Dissecting Forceps
Dissecting Forceps are precision hand tools designed for grasping, holding, and manipulating tissues or small objects during dissection or surgical procedures. Typically made from high-quality stainless steel or surgical-grade metal, these forceps offer durability, corrosion resistance, and ease of sterilization. They come in various shapes and sizes, including straight or curved tips, serrated or smooth jaws, to suit different dissection needs in medical, veterinary, biological research, and educational settings. Their ergonomic design allows fine control and minimizes tissue damage during delicate operations.

Preservatives(food)
Flavor Enhancers
Acidulants
Sweeteners
Antioxidants
Colorants(food)
Nutraceutical Ingredients (food)
Nutrient Supplements
Emulsifiers
Collectors
Dust Suppressants
Explosives and Blasting Agents
Flocculants and Coagulants
Frothers
Leaching Agents
pH Modifiers
Precious Metal Extraction Agents
Antioxidants(plastic)
Colorants (Pigments, Dyes)
Fillers and Reinforcements
Flame Retardants
Monomers
Plasticizers
Polymerization Initiators
Stabilizers (UV, Heat)
Antifoaming Agents
Chelating Agents
Coagulants and Flocculants
Corrosion Inhibitors
Disinfectants and Biocides
Oxidizing Agents
pH Adjusters
Scale Inhibitors( water)
Antioxidants(cosmetic)
Emollients
Fragrances and Essential Oils
Humectants
Preservatives
Surfactants(cosmetic)
Thickeners
UV Filters
Fertilizers
Soil Conditioners
Plant Growth Regulators
Animal Feed Additives
Biostimulants
Pesticides (Herbicides, Insecticides, Fungicides)
Active Pharmaceutical Ingredients (APIs)
Excipients
Solvents(pharmaceutical)
Antibiotics
Antiseptics and Disinfectants
Vaccine Adjuvants
Nutraceutical Ingredients (pharmaceutical)
Analgesics & Antipyretics
Analytical Reagents
Solvents(lab)
Chromatography Chemicals
Spectroscopy Reagents
microbiology-and-cell-culture-reagents
Molecular Biology Reagents
Biochemical Reagents
Inorganic and Organic Standards
Laboratory Safety Chemicals
Specialty Laboratory Chemicals(Special Laboratory Equipment)
Demulsifiers
Hydraulic Fracturing Fluids
Scale Inhibitors(oil)
Surfactants(oil)
Drilling Fluids
Dyes and Pigments
Bleaching Agents
Softening Agents
Finishing Agents
Antistatic Agents
Admixtures
Waterproofing Agents
Sealants and Adhesives
Curing Compounds
Concrete Repair Chemicals
Anti-Corrosion Coatings
Surfactants(cleaning)
Builders
Enzymes
Solvents (Cleaning)
Fragrances
Electronic Chemicals
Catalysts
Lubricants
Photographic Chemicals
Refrigerants
Automotive chemicals
Pyrotechnic Chemicals
Biodegradable Surfactants
Bio-based Solvents
Renewable Polymers
Carbon Capture Chemicals
Wastewater Treatment Chemicals
Pigments
Solvents(paint)
Specialty Coatings
Binders/Resins
Additives
Driers
Anti-Corrosion Agents
Functional Coatings
Application-Specific Coatings
Leavening Agents
Dough Conditioners
Flour Treatments
Fat Replacers
Decoratives
Preservatives(baking)
Plasticizers & Softeners
Reinforcing Agents
Adhesion Promoters
Vulcanizing Agents
Antidegradants
Blowing Agents
Fillers & Extenders
Accelerators & Retarders