Richter GUT/F Series, Инструкция по установке и эксплуатации

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Series GUT/F
Page
12
9530-021-en Revision 16
TM 10477 Edition 05/2022
9.4 Adjustment of the test pres-
sure
♦
Unscrew cap 207 .
♦
Undo groove nut 509/1 .
♦
Adjust the spring tension with the straining screw
581 to the specified test pressure.
♦
Counter straining screw 581 with the groove nut
509/1
♦
Check test pressure.
♦
Screw on cap 207 and tighten.
♦
Have valve lead-sealed.
♦
The data specified in the test certificates are to be
observed.
9.5 Important notes on disman-
tling / installation
First undo the straining screw 581 ; the valve
plug 204 is relieved!
♦
Then undo the screws between cover flange 105
and body 100 .
♦
The seat and plug could otherwise be destroyed.
Read the precise instructions in Section 9.6 .
♦
Always replace the seat and plug pairwise and
always rework them completely.
♦
Reworking of the seat and plug requires special-
ised knowledge.
♦
It is therefore recommended to have this work
carried out by the manufacturer.
♦
After dismantling, check all parts for wear and
damage.
♦
Observe sectional drawings in Section 10 .
9.6 Replacement of components
Fig. 8
9.6.1 Dismantling of the plug and seat
♦
Unscrew cap 207 .
♦
Undo groove nut 509/1 .
♦
Undo straining screw 581 .
♦
Do not turn the entire stem 800 ! There is a risk of
the insert sleeve 308 being unscrewed out of the
bellows 206 or the folds being damaged!
♦
Loosen the bolts 901/1 , 936/1 , 936/2 and 920/1
from body 100 and cover flange 105 and lift the
cover flange with internals completely off.
♦
Grip the bellows 206 in the reinforced section.
Unscrew and remove the plug 204 .
♦
Unscrew seat 205 from the body 100 with a special
wrench. See Section 1.3 .
9.6.2 Installation of seat and plug
♦
The new seat is to be carefully protected prior to
assembly. The sealing edge and the sealing sur-
face for the plug must not be damaged. See
Fig. 8.
♦
All parts are to be thoroughly cleaned before
assembly.
♦
Screw new or reworked seat 205 into the body 100
with a screwdriver.
♦
Screw new or reworked plug 204 onto the bellows
thread hand-tight.
♦
Hold the bellows 206 at the reinforced section.
♦
First tighten the attachment nuts 920/1 hand-tight
and then with a torque wrench evenly and in
diametrically opposite sequence.
♦
Adjust the spring tension with the straining screw
581 to the specified test pressure.
♦
Counter straining screw 581 with the groove nut
509/1
♦
Check test pressure.
♦
Screw on cap 207 and tighten.
♦
Have valve lead-sealed.