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Parts & Accessories
Hoffman Screw Tubing Clips, Adjustable Pinch Clamp for Flexible Tubing
From $6.90 (Ex GST)
From $6.90 (Ex GST)
- Hoffman screw tubing clips for sealing compatible flexible tubing
- Designed to block air or gas flow by pinching tubing sides together
- Adjustable screw supports controlled closure pressure during use
- Projecting plate helps protect tubing from direct screw damage
- Hinged side bar allows fitting without access to tubing ends
- Available in 18, 20, 25, 30 and 40 mm maximum opening sizes
- Suitable for supervised laboratory and educational tubing workflows
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- Description
Description
The Hoffman Screw Tubing Clips, also known as adjustable screw pinch clamps for flexible tubing, are designed to seal compatible tubing by pinching the sides together. They are suitable for school laboratories, university teaching laboratories, research laboratories, preparation rooms and general laboratory setups where air or gas flow needs to be blocked or controlled. These clips are used to close flexible tubing in practical laboratory assemblies. By tightening the screw, the tubing is compressed until the flow path is restricted or blocked, supporting simple control of air or gas movement in compatible tubing systems.
The adjustable screw design allows users to apply controlled sealing pressure according to the tubing size, tubing flexibility and required closure level. Users should avoid over-tightening, especially with softer tubing materials. A projecting plate is included to help prevent direct screw damage to the tubing. This supports more even pressure distribution and helps reduce the risk of localised wear during routine laboratory use. The hinged side bar allows the clip to be fitted or removed without needing access to the tubing ends. This is useful when tubing is already connected within an apparatus setup and quick adjustment or replacement is required.
The supplied material description states nickel plated brass, and the clamp is also described as nickel plated bronze. For selection purposes, users should treat these as nickel plated metal Hoffman tubing clips and confirm material suitability if chemical exposure is important. Maximum opening options include 18 mm, 20 mm, 25 mm, 30 mm and 40 mm. Users should select the clip size according to the tubing outside diameter, wall thickness, closure requirement and available space in the apparatus setup.
LabChoice Australia supplies Hoffman Screw Tubing Clips for school science departments, university laboratories, research facilities, preparation rooms and general laboratory environments. They are suitable for supervised tubing closure, air or gas flow blocking, practical apparatus setup and educational laboratory demonstrations using compatible flexible tubing.
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What Our Customers Say
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We ordered a set of customised BORO 3.3 borosilicate glassware for our teaching labs, and LabChoice Australia exceeded every expectation. From the first consultation to final delivery, their team listened carefully, offered expert advice, and ensured every piece matched our specifications perfectly.
The clarity and precision of the glassware are exceptional, and the quick turnaround made setup effortless. It’s refreshing to work with an Australian supplier who genuinely understands laboratory needs and takes pride in quality craftsmanship. We’ll definitely be returning to LabChoice for future glassware requirements
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Our lab required high-precision BORO 3.3 glassware for analytical testing, and LabChoice Australia delivered outstanding results. The ordering process was simple, communication was clear, and every beaker and flask arrived perfectly calibrated and ready for use.
The quality of the glass is exceptional — resistant to heat, easy to clean, and consistently accurate in measurement. It’s reassuring to know there’s an Australian supplier that combines scientific precision with genuine customer care. I’d recommend LabChoice to any research team looking for dependable labware
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We needed a set of customised borosilicate glassware for a specialised project, and LabChoice Australia delivered exactly what we envisioned. The team worked closely with us from design to production, ensuring every detail met our specifications. The craftsmanship is exceptional, and the turnaround time was impressive. It’s reassuring to know we can rely on them for unique, made-to-order pieces
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LabChoice Australia has completely changed the way we source our lab glassware. The quality is consistently top-notch, and every piece meets the precision we need for reliable results. Their team knows their stuff, answers our questions quickly, and always goes the extra mile to help — they’re more like partners than just a supplier.
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We trust LabChoice Australia because they deliver every time. Their borosilicate glassware is durable, accurate, and perfect for the high-heat work we do. Everything arrives well-packed with clear specs, so there are never surprises. It’s reassuring to deal with a supplier who understands both compliance and the demands of a busy lab