Bitzer HS.8551 Mode D'emploi page 26

Case C: Screws of property class 5.6
Case D: Screws of property class 8.8
They can be used for welding flanges as well.
1 1 0 0 . . 3 3 S S i i g g h h t t g g l l a a s s s s e e s s
Also mind when mounting or replacing:
• Tighten sight glasses only with calibrated torque
spanner to indicated torque. Do not use a pneumatic
impact wrench.
• Tighten flanges of sight glasses in several steps to
indicated torque.
• Check sight glass visually in detail before and after
mounting.
• Test changed component for tightness.
S S i i g g h h t t g g l l a a s s s s e e s s w w i i t t h h s s e e a a l l i i n n g g f f l l a a n n g g e e
S S c c r r e e w w s s i i z z e e
M8
M10
S S i i g g h h t t g g l l a a s s s s e e s s w w i i t t h h u u n n i i o o n n n n u u t t
S S i i z z e e
1 3/4-12 UN
2 1/4-12 UN
AF: width across flats in mm
S S c c r r e e w w e e d d s s i i g g h h t t g g l l a a s s s s
S S i i z z e e
1 1/8-18 UNEF
1 1 0 0 . . 4 4 S S c c r r e e w w e e d d j j o o i i n n t t s s o o f f e e l l e e c c t t r r i i c c a a l l c c o o n n t t a a c c t t s s i i n n t t h h e e
t t e e r r m m i i n n a a l l b b o o x x
S S i i z z e e
M4
M5
M6
M8
M10
M12
M16
①: with thrust washer
26 26
14 Nm
18 Nm
A A F F
50 150 Nm
65 180 Nm
50 Nm
2 Nm
5 Nm
6 Nm
10 Nm
20 Nm
40 Nm ①
40 Nm ①
1 1 0 0 . . 5 5 S S c c r r e e w w s s i i n n s s i i d d e e t t h h e e c c o o m m p p r r e e s s s s o o r r
S S e e t t s s c c r r e e w w s s a a t t s s h h a a f f t t s s e e a a l l s s
S S i i z z e e
M5
M6
M8
P P r r e e s s s s u u r r e e r r e e l l i i e e f f v v a a l l v v e e
S S i i z z e e
3/4-14 NPTF
This valve vents from the pressure side (HP) to the
suction side (LP) inside the compressor if the HP pres-
sure exceeds the maximum allowable pressure.
3 .. 5 Nm
5 .. 9 Nm
10 Nm
15 .. 20 Nm
SB-110-3 RUS SB-110-3