Spirax Sarco S - Page 11

IM-P077-02 ST Issue 6 11
Table 1 Recommended tightening torques
Item Size
or
mm
N m (lbf ft)
3
½" - DN15 15 - 25 - 30 (19 - 22)
¾" - DN20 17 - 35 - 40 (26 - 30)
1" - DN25 22 - 50 - 60 (37 - 45)
1½" - DN40 30 - 80 - 90 (59 - 67)
10
½" - DN15 30 - 50 - 60 (37 - 45)
¾" - DN20 36 - 50 - 60 (37 - 45)
1" - DN25 46 - 70 - 80 (52 - 59)
1½" - DN40 50 - 90 - 110 (67 - 81)
16
½" - DN15 - M4 x 8 2.5 - 3 (2.0 - 2.2)
¾" - DN20 - M5 x 10 3 - 4 (2.2 - 3.0)
1" - DN25 - M5 x 10 3 - 4 (2.2 - 3.0)
1½" - DN40 - M6 x 10 5 - 6 (3.7 - 4.4)
17
½" - DN15 - M8 x 20 20 - 25 (15 - 19)
¾" - DN20 - M12 x 25 60 - 70 (45 - 52)
1" - DN25 - M10 x 30 40 - 45 (30 - 34)
1½" - DN40 - M12 x 35 60 - 70 (45 - 52)
Fig. 3
3
10
16
17