Type L.C./S.T. L.C./S.T
This Rotary (L.C.) Union has the body end tapped to receive a stationary centre tube. This gives flow areas through the centre tube and through the annulus, therefore supply and return of fluid at one end of the machine shaft is possible. Centre tubes are only provided if specified and ordered.
The centre tube should be threaded to pass through the body end and to suit dimension “O”. An elbow should be fitted onto the tube end matching dimension “O”. For the 8 (1/4″) and 10 (3/8″) nominal sizes a pipe thread is impossible. It is therefore necessary to adapt from dimension “O” to suit a G1/8″ or G1/4″ Elbow.
Type L.C./S.T. for double flow
| Nominale size |
A | Part No. |
| 8 (¼”) | G.¼” | 18110 – R ou L |
| ½” – 20 UNF | 18110U – R ou L | |
| M12 x 1.25 | 18110MB – R ou L | |
| 10 (3/8″) | G.3/8″ | 18111 – R ou L |
| 5/8″ – 18 UNF | 18111U – R ou L | |
| M15 x 1.5 | 18111MB – R ou L | |
| 15 (½”) | G.½” | 18112 – R ou L |
| ¾” – 16 UNF | 18112U – R ou L | |
| M22 x 1.5 | 18112MB – R ou L | |
| 20 (¾”) | G.¾” | 18113 – R ou L |
| 1″ – 14 UNS | 18113U – R ou L | |
| M30 x 1.5 | 18113MB – R ou L | |
| R, L depend on the direction of rotation | ||
| Nominal size |
B | C | D | E | F | G | I | O | V | |||||
| 8 (¼”) | R.¼” | 6 | 90 | 78 | 24 | 11 | 40 | M5 x 0.8 | 24 | |||||
| 10 (3/8″) | R.3/8″ | 10 | 99 | 82 | 26 | 13 | 40 | M6 x 1.0 | 24 | |||||
| 15 (½”) | R.½” | 13 | 127 | 107 | 32 | 16 | 65 | G.1/8″ | 38 | |||||
| 20 (¾”) | R.¾” | 16 | 130 | 110 | 35 | 19 | 65 | G.¼” | 38 | |||||
| Dimensions in millimetres | ||||||||||||||
‘G’ is the designation for parallel pipe threads to BS2779 and ISO 228/1
