Agilent, G4556-20178, Large sample loop retainer clip

The Agilent large sample-loop retainer clip is a mechanical replacement part used to secure the designated sample-loop configuration in compatible headspace sampling equipment. It is specified for the 0.025 mL, 0.050 mL and 0.10 mL loop arrangements, where a large retainer clip is installed together with the associated small retainer clip. The retainer helps maintain the position of the sample-loop hardware; it is not itself a sample loop, sampling needle or valve rotor. During service, verify the fitted loop volume and consult the headspace sampler's parts diagram to identify the required retaining hardware. Handle the loop tubing and mating fittings carefully so that the assembly is not strained while fitting the clip. After replacement, confirm mechanical security and perform instrument-specific leak and sampling checks before measuring volatile analytes. Do not use the retainer as a substitute for the correct loop size or additional required clip.