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Open upper and bottom shutoff device (D1,W1) (if exists) and drain valve
•
(4). Following that, slowly open upper shutoff device (D2) and steam flowing
through the unit cleans the glasses.
•
Close upper shutoff device (D2) and drain valve (4) again.
For commissioning see point 7.
•
If this cleaning was not sufficient, replace glass.
8.4 Exchange of glass
Always place new glass, new gasket and new cushion!
Close shutoff devices (D1,D2,W1,W2).
•
Open drain valve (4), hence unit is drained.
•
•
Unfasten pressure screws (7) and remove.
Remove upper clamping (9).
•
Remove right clamping ring (10), pressure plate (14), cushion (13), glass
•
(12), gasket (11) and screw holder (8).
Remove completely remaining gasket and cushion parts.
•
Clean sealing surface of gauge body as well as contact surface of pressure
•
plate.
8.5 Assembly:
Insert sealing (11), glass (12), cushion (13) and pressure plate (14).
•
Install glass with grooves turned to the medium!
Grease pressure screws (7) with suitable lubricant, screw into screw holder
•
(8) and insert.
Insert clamping ring (10).
•
Install clamping (9).
•
Tighten pressure screws loosely and then in several steps according to the
•
table (see point 8.6) starting in the centre using successively opposite
diagonal tightening up to a tightening torque Md
For re-commissioning see point 7.
•
8.6 Tightening torques
Max.
Pressure
PS
1
32
30
12
Tightening torque
Md → Md
[Nm]
max
steps
2
45
= 60 Nm.
max
3
60
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