Bitzer HS.8551 Mode D'emploi page 25

1 1 0 0 T T i i g g h h t t e e n n i i n n g g t t o o r r q q u u e e s s f f o o r r s s c c r r e e w w e e d d c c o o n n n n e e c c t t i i o o n n s s
Mind when mounting or replacing parts:
• Clean threads carefully.
• Gaskets:
– Use new gaskets only!
– Do not oil gaskets with metallic support.
– Flat gaskets may be moistened slightly with oil.
• Wrap plugs with sealing tape or coat them with liquid
sealing agent.
• Admissible screwing methods:
– Tighten with calibrated torque spanner to indic-
ated torque.
– Tighten with pneumatic impact wrench and
retighten with calibrated torque spanner to indic-
ated torque.
– Tighten with electronically controlled angled
wrench to indicated torque.
• Tolerance range of tightening torques: ±6% of nom-
inal value
• Tighten flange connections crosswise and in at least
2 steps (50/100%). Alternatively, they may be
tightened in one step with a multi spindle tool.
1 1 0 0 . . 1 1 N N o o r r m m a a l l s s c c r r e e w w e e d d c c o o n n n n e e c c t t i i o o n n s s
S S i i z z e e
M5
M6
M8
M10
M12
M16
M20
M20 with CS.105
Case A: Screws without flat gasket, property class 8.8
or 10.9
Case B: Screws with flat gasket or gasket with metallic
support, property class 10.9
1 1 0 0 . . 2 2 S S p p e e c c i i a a l l s s c c r r e e w w e e d d c c o o n n n n e e c c t t i i o o n n s s
S S e e a a l l i i n n g g p p l l u u g g s s w w i i t t h h o o u u t t g g a a s s k k e e t t
S S i i z z e e B B r r a a s s s s
1/8-27 NPTF 35 .. 40 Nm
SB-110-3 RUS SB-110-3
C C a a s s e e A A C C a a s s e e B B
7 Nm
9 Nm 16 Nm
23 Nm 40 Nm
42 Nm 80 Nm
80 Nm 125 Nm
150 Nm 220 Nm
220 Nm 220 Nm
400 Nm
S S t t e e e e l l
15 .. 20 Nm
S S i i z z e e B B r r a a s s s s
1/4-18 NPTF 50 .. 55 Nm
3/8-18 NPTF 85 .. 90 Nm
1/2-14 NPTF 95 .. 100 Nm
3/4-14 NPTF 120 .. 125 Nm
S S e e a a l l i i n n g g s s c c r r e e w w s s o o r r p p l l u u g g s s w w i i t t h h a a l l u u m m i i n n i i u u m m g g a a s s k k e e t t
S S i i z z e e
M10
M18 x 1,5
M20 x 1,5
M22 x 1,5
M26 x 1,5
M30 x 1,5
M48 x 1,5
G1/4
G1 1/4
S S e e a a l l i i n n g g s s c c r r e e w w s s o o r r p p l l u u g g s s w w i i t t h h O O - - r r i i n n g g
S S i i z z e e
1 1/8-18 UNEF
M22 x 1,5
M52 x 1,5
S S e e a a l l i i n n g g n n u u t t s s w w i i t t h h O O - - r r i i n n g g
T T h h r r e e a a d d
3/4-16 UNF
1-14 UNS
1 1/4-12 UNF
1 3/4-12 UN
2 1/4-12 UN
These sealing nuts are normally used for Rotalock
screwed joints.
AF: width across flats in mm
S S c c r r e e w w s s f f o o r r s s h h u u t t - - o o f f f f v v a a l l v v e e s s a a n n d d c c o o u u n n t t e e r r f f l l a a n n g g e e s s
S S i i z z e e
M10
M12
M16
M18
M20
M24
S S t t e e e e l l
30 .. 35 Nm
50 .. 55 Nm
60 .. 65 Nm
80 .. 85 Nm
30 Nm
60 Nm
70 Nm
80 Nm
110 Nm
120 Nm
300 Nm
40 Nm
180 Nm
50 Nm
40 Nm
100 Nm
A A F F
22 50 Nm
30 85 Nm
36 105 Nm
50 150 Nm
65 180 Nm
C C a a s s e e C C C C a a s s e e D D
50 Nm
36 Nm 100 Nm
98 Nm 150 Nm
136 Nm 200 Nm
175 Nm 200 Nm
320 Nm
25 25