TEE or OLET Symbol Keys

1

The position of P3 along the perpendicular axis is important for deriving the cut pipe length. The perpendicular displacement of P3 is determined by the point at which the offline leg intersects the main line. For TESO and TERF, the distance P0 to P3 must not exceed half the main bore; P0, P1, P2, and P3 will be coincident when the offline leg has the same bore as the main line. For TPUL, the distance P0 to P3 must exceed half the main bore. If the position of P3 does not follow these rules, any weld shown at the intersection may appear in the wrong place.

2

The dimensions of piping components depend upon plotted leg length. The default plotted leg length is 9mm, but this can be set to a different value using the LEGLENGTH command. The minimum value the user can set is 6mm.

3

The TEBW, TECP, TEFL, TESC and TESW SKEYs can be used for laterals.

4

Replace the ** characters in the symbol key with one of the following end condition identifiers:

BW for butt weld

CP for compression

SW for socket weld

FL for flanged

SC for screwed

PL for plain

5

The @ character in the symbol key is replaced automatically by an integer in the range 1 to 3, depending on the relative bore size of the connections, with 1 assigned to the largest bore. It is important to note the bore size if redefining the SKEYS for Y1**, Y2** or Y3**.

6

Flanged connections on generic Y-type fittings are represented on the isometric on the tube only. This is due to the fact that the y-type fitting is user-definable and flanged representation on the component cannot be enforced.

7

The presence of an offset P3 may be indicated. The P3 connection of the tee/olet must be connected directly to a tube. The default behaviour is that, if an offset P3 configuration is present, a new ATEXT characterizing the offset is output upon the drawing. This new ATEXT is number 233 in the list of ATEXTs and its default value is ‘BRANCH OFFSET BY’ followed by the nonzero relative coordinates of the offset.