Edwards Drystar GV80

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Appendix A1

A505-75-880 Issue B

Appendix A1 Correct use of Swagelok

connectors

Note: We recommend that you use a second spanner to hold the connector in position when you connect or

disconnect a Swagelok connector.

A1.1 Fit a Swagelok connector

1. Refer to Figure A1-1 detail A. Undo and remove the nut (4) from the Swagelok connector (1). Ensure that the

front (tapered) ferrule (2) and the rear ferrule (3) are correctly orientated as shown in detail A, then loosely

refit the nut (4) to the connector (1).

2. Refer to detail B. Insert the tube (5) through the nut (4) and into the Swagelok connector (1). Ensure that the

tube rests firmly on the shoulder inside the fitting, and that the nut (4) is finger tight.

3. Tighten the nut (4) until you cannot rotate the tube (5). If you cannot turn the tube because of how it is

installed, tighten the nut by 1/8th of a turn.

4. Refer to detail C. Mark the nut (4) at the six o’clock position.

5. Refer to detail D. Hold the body of the connector steady, then turn the nut (4) by 11/4 turns (to the nine o’clock

position) to fully tighten the connection.

A1.2 Reconnect a Swagelok connector

You can disconnect and reconnect a Swagelok connector many times and still obtain a correct leak-proof seal. Refer

to Figure A1-2 detail A which shows a Swagelok connector after you have disconnected it. Use the following procedure

to reconnect it:

1. Refer to detail B. Insert the tube (5) with the swaged ferrules (2, 3) into the Swagelok fitting (1), until the front

ferrule (2) is fully in the body of the fitting.

2. Refer to detail C. Tighten the nut (4) by hand.

3. Use a wrench or spanner to turn the nut (4) to its original position (you will feel an increase in resistance when

the nut is in its original position), then tighten the nut slightly.