Valve Port Hat Type Needles
Hat type needles are designed to be connected directly to a flat bottom valve port. Use the Needle Bushing part number 35056 to connect the needle directly to any 1/4-28 Hamilton valve.
Note on Length: Needle length is specified from the needle point to the start of the installation hardware. The distance from the needle point to the back end of the hub is length + 14.22 mm. This additional length is added so that when a needle is fixed into a port, with Hamilton fitting part number 35056, the overall exposed length of the needle is the length specified by the order. For more information, please reference the Hamilton Needle Point Style Guide.
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Resources
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SDS - Needle Cleaning Solution
Safety data sheets (SDS) are documents that allow for the documentation and logging of the potential risks and hazards associated with a product or substance. Hamilton Company provides SDS sheets for many of it's syringe and needle parts and accessories. Download the safety data sheet for Hamilton's needle cleaning solution.
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Needle Length Guide
Needle length is a critical consideration for every application. Each needle hub design requires a slightly different length definition. It doesn't matter if the application is utilizing lab needles for life science injection or environmental analysis of ground water, the injection needs to hit the right target. This guide illustrates how to make the different measurements. -
Needle Gauge Chart
In addition to being inert stainless steel, lab needles require proper sizing in order to function properly. The diameter of a needle is defined by its gauge. Hamilton company offers a wide spectrum of gauges. This index displays the internal and outer dimensions and the dead volume.
Work with R&D engineers to customize Hamilton parts
Hamilton's "Custom Built" program puts you directly in contact with a Hamilton R&D Engineer to discuss your application and product needs. The engineer will point you to a standard solution or propose a customized solution to meet your needs.
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