Steam traps Inverted bucket
8
Spare parts The spare parts available are shown in heavy outline. Parts shown in a grey line are not supplied as spares. Available spares Valve and seat assembly *(2 off) (supplied pre-assembled)
3, 4, 5, 6, 7, 12, 13, 14*, 16*, 19, 20*
8
Bucket assembly
9, 11
Strainer screen
7, 11, 12, 13
Packet of all gaskets
How to order spares Always order spare parts by using the description given in the column headed 'Available spares' and state the size, Model No. and pressure rating of the trap. Example: 1 off Valve and seat assembly for a Spirax Sarco DN20 SFB8 inverted bucket steam trap for differential pressures up to 8 bar.
17
12
13 3
Recommended tightening torques
5.6.21
4, 19
or mm
Item No.
Trap size
N m
6
5
20
14 16
½" - DN15 17
-
25 - 30
¾" - DN20 17
-
25 - 40
3
20
1" - DN25 22
-
50 - 60
8
1½" - DN40 30
-
80 - 90
8.6 18
½" - DN15 -
M28x30 50 - 60
7
¾" - DN20 -
M32x36 50 - 60
10
1" - DN25 -
M42x46 70 - 80
1½" - DN40 -
M42 x 50
90 - 110
½" - DN15 -
M4 x 8
2.5 - 3
¾" - DN20
-
M5 x 10
3 - 4
16
1" - DN25 -
M5 x 10
3 - 4
1½" - DN40 -
M6 x 10
5 - 6
½" - DN15 -
M8 x 20 20 - 25
¾" - DN20 -
M12 x 25 60 - 70
17
1" - DN25 -
M10 x 30 40 - 45
10 11 9
1½" - DN40 -
M12 x 35 60 - 70
How to order Example: 1 off Spirax Sarco DN20 SFB4 inverted bucket steam trap having flanged EN 1092 PN16 connections.
TI-P077-01 CMGT Issue 9
Page 6 of 6
S and SF Series Cast Iron Inverted Bucket Steam Traps
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