What is a Luer?
Luer is an abbreviation for what is commonly referred to as a Luer Taper. Luer Taper is a system of tapers used for making leak-proof connections between a male-taper fitting and its mating female part on medical and laboratory instruments, including hypodermic syringe tips and needles or stopcocks and needles. Popper tapers are manufactured to ISO 594 standards.
What are different types of Luers?
There are two basic Luer types: Luer Lock and Luer Slip. Luer Lock is a part which locks a needle to a syringe by means of a tabbed hub. Luer Slip is a tip which conforms to Luer taper dimensions and holds the needle by friction. The tip is wedged into a female Luer with a matched inner taper
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What materials are Luers made from?
Most Luers manufactured by Popper are made from brass type 360 and are either chrome or nickel plated. Popper also offers a line of type 316 stainless steel Luers as well as PEEK luer adapters.
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Will Popper Luers mate with a plastic syringe made in China?
Popper's Luers will mate with any device manufactured to ISO 594 standards.
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Are Luers tested for leaks?
All of Popper's Luers are tested for leaks using water pressure. Stopcocks are tested to 60 PSI water pressure and Adapters are tested to 45 PSI water pressure.
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Are Luer stopcocks valves?
No. Stopcocks are directional-flow devices not valves. The only valve offered by Popper is the 'automatic valve', an essential component of our Micro-Matic Pipetting Assembly (can be found in the Syringes section page 13).
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Does Popper manufacture custom Luers?
Yes. Popper's Custom Fabrication Division specializes in custom manfuacturing of tubular components and Luers. Please note that due to set-up costs, custom Luers require a higher minimum. Consult with our customer service specialists for additional information and quotation.
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Does Popper sell plastic Luers?
No. Popper only manufactures specialty metal devices. We do, however, offer a line of PEEK adapters for chromatography applications.
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What is a Micro-Mate Luer?
Micro-Mate adapters are manufactured with a special 'double-lead-thread' on the female Luer portion which is designed to minimize stripping when mating with plastic Luers. Micro-Mate adapters are offered in both chrome plated brass and type 316 stainless steel.
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What are the pressure ratings for Popper Luers?
All Popper Luers are water-pressure tested. Stopcocks are certified to 60 PSI and Adapters to 45 PSI.
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Can gases be used with metal Luers?
No. Metal Luers are designed for use with liquids. Some of our customers do report successful results (no leaks) when Luers are used with gases. It is recommended that testing be done prior to implementation.
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Are Popper Luers autoclavable?
Yes. Popper's specialty Luers are designed for repeated use/sterilization. Note that proper cleaning and preparation is essential for preserving the appearance of Luers as well as repeated functionality. Ask our customer service associates for a technical document about proper cleaning of Luers.
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Do Popper Luers conform to ISO specifications?
Yes. All Popper's Luers are manufactured and meet ISO 594 standards.
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Does Popper sell tubing adapters?
Yes. Popper manufactures adapters for vinyl tubing. They feature either a male luer lock or a female luer to screw cap threaded fitting for various tubing I.D.'s. We also offer needle tubing adapters to fit 14 thin wall to 23 thin wall tubing.
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What type of plating is used on Luers?
Popper stopcocks are chrome plated to Federal Specification QQ-C-320B Class I Type 1 (base material is brass 360). Adapters are nickel plated to Federal Specification QQ-N-290A-Class I Grade F (base material is brass 360).
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Can we purchase uncoated Luers?
Yes. We offer unplated male luer lock blanks manufactured from brass type 360.
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What are bulkhead Luers?
Bulkheads are ideal for panel mounted application requiring a secure luer connection. Bulkheads feature a 1/4"-28 hex panel nut as well as a lockwasher for secure fit. Bulkheads are offered with a variety of tubing 'barbs' to fit a wide range of tubing I.D.'s.
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What are micromatic manifolds?
Micromatic manifolds feature 4 and 8 tip center and side feeds. They can be used with our 1ml micromatic pipetting assembly or with any other luer pipetting system. Manifolds allow for quick and repetitive volumetric distribution of reagents. Manifolds are manufactured from stainless steel.
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Do 3-way stopcocks have to be lubricated?
Stopcocks should be lubricated everytime they are cleaned with dow corning valve lubricating grease by taking the stopcock apart & spraying lubricant on the key then re-assembling and turning.
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Are lubricants use in the assembly process of our stopcocks?
Our Stopcock keys are lubricated with Dow Corning 360 Medical Fluid (Silicone).
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Do you have suggested cleaning and sterilization guidelines for Luers?
Please consult our technical document in the Downloads section on the web.
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Do you sell Luer gauges?
Popper sells a variety of ISO Luer taper gauges. Please consult the downloads section for additional details.
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Do you have high pressure stopcocks?
Yes. We have a 3-way high pressure stopcocks, catalog #V5820000. The pressure rating is 285 PSI, water pressure.
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Are the automatic valves included with the pipetting assembly autocaleable?
Yes, except for the rubber tack and washer that must be removed prior to sterilization.
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What is PEEK?
PEEK is high temp resisant engineered thermoplastic with excellent chemical and tagigue resistantce plus thermal stability. PEEK is insoluable in all common solvents and being crystaline, is extremely resistant to attack by a very wide range of organic and inorganic chemicals. Mechanical properties are maintained even at temp in excess of 480F.
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