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Fittings for HPLC

31 What is the pH range of PEEK laboratory tubing and fittings?

According the some manufacturers of PEEK, the useful pH range of PEEK tubing and fittings for HPLC is 2 - 14 for use with HPLC solvents and buffers. However, I would be very careful with pH 0 to 6 for…

32 What is the pressure capability of the PEEK column coupler?

The HPLC column couplers (cat# 47450-01, 47450-02, 47450-03, or 47450-04) are standard HPLC items and if installed properly while using standard temperatures and normal HPLC solvents, they should be able…

33 What is the pressure rating of the HPLC column coupler (Cat# 47450-06)?

The column coupler (Cat# 47450-06) is rated for use up to 6,000 psi. Click HERE for Column Coupler Ordering Information © Copyright MicroSolv Technology Corporation, all rights reserved.

34 What is the stop depth or pilot length of the HPLC guard column coupler (catalog # 47450-06)?

The item can be used with most columns with standard end fittings and all Cogent HPLC columns. However, it’s not compatible with the deeper Valco type column ports such as Waters. Click HERE for Column…

35 What is the useful temperature range of 316 stainless steel laboratory products?

The useful temperature range of stainless steel (SS) related products such as tubing and HPLC fittings is up to 240°C. © Copyright MicroSolv Technology Corporation, all rights reserved.

36 What is the useful temperature range of PEEK laboratory products?

The useful temperature range of PEEK related products for chromatography is up to 100 °C (tubing); up to 125 °C (fittings). PEEK is sometimes rated to 250°C but... It will not be as stable (lower burst…

37 What makes one HPLC fitting different from another?

Of course, the quality of the manufacturing is important but besides that the most important features of all fittings are: Geometry of the receiving port you are putting the fitting into. Threads on the…

38 What type of fitting is best to use with the Cogent™ HPLC and LCMS columns?

We generally recommend a fitting that can be re-swaged each time one of our columns is removed (both standard 4um and 2.o™ phases) to enable a clean connection when changing HPLC columns. Permanently…

39 Why do some HPLC fittings need ferrules and others do not?

All fittings require some form of “ferrule”. Some fittings have them built in and others require separate pieces. The “head” of the fittings are used to drive the ferrule and tubing into the receiving…

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