Pipe containing a metal casing with a plastics material inlay for use in low and high pressure applications, in particular as an hplc column

A pipe for a chromatography column, comprising:

• a tubular metal casing having a first end and a second end;
• an inlay comprising a plastic material tube having a first end and second end configured to be insertable into the metal casing;
• and
• a first plastic material sealing ring connected to the inlay proximate the first end of the inlay.

A chromatography column configured for connecting between a feed line and a discharge line, comprising:

• a first tubular metal casing having a first end and a second end;
• an inlay comprising a plastic material tube having a first end and second end configured to be insertable into the first metal casing;
• a first plastic material sealing ring connected to the inlay proximate the first end of the inlay;
• a second plastic material sealing ring connected to the inlay proximate the second end of the inlay;
• a first connection element configured for connecting the first end of the first tubular metal casing to a feed line comprising:
• a second tubular metal casing having a first end, a second end, a cavity at the first end defining first and second internal shoulders and an internal thread formed in the cavity, the second end being configured as a connector for the feed line;
• a first center piece comprising a first plastic material pressed body with a through-opening to receive one end of the feed line, the first plastic material pressed body insertable into the cavity from the first end and abuttable against the first internal shoulder of the second metal casing, the plastic material pressed body and the second internal shoulder of the second tubular metal casing forming a first abutting face;
• a second connection element configured for connecting the second end of the first tubular metal casing to a discharge line comprising:
• a third tubular metal casing having a first end, a second end, a cavity at the first end defining first and second internal shoulders and an internal thread formed in the cavity, the second end being configured as a connector for the discharge line;
• a second center piece comprising a second plastic material pressed body with a through-opening to receive one end of the discharge line, the first plastic material pressed body insertable into the cavity from the first end and abuttable against the first internal shoulder of the third metal casing, the second plastic material pressed body and the second internal shoulder of the third tubular metal casing forming an second abutting face.