Diaphragm Pressure Keeping Valve
Operating Instructions
16
www.sera-web.com
Technical modifications reserved!
TA 49
Rev.
13 en
05/2016
Assemble the pump in reversed order
•
Insert diaphragm (PTFE-foil pointing downstream) in the
recess of the cover.
•
Fasten cover with screws on the valve housing.
•
Fill in damping fluid (for type and quantity please see Ta-
ble 07).
Damping
fluid
Pressure disk
Diaphragm
Fig. 15
Type
Damping fluid
Quantity
[ml]
620.D
Glycerine
DAB 87
excluding
622.D
excluding
623.D
excluding
624.D
excluding
625.D
36
626.D
56
627.D
138
Table 07 Damping fluid
•
Insert pressure spring.
•
Screw in set screw up to dimension “
T
”.
•
Screw lid in cover.
15
Shut-down
•
Shut-down the pump/system and secure it against restart-
ing!
•
Make sure that all pipes with diaphragm pressure keeping
valves are depressurized!
•
Drain the diaphragm pressure keeping valve and the
connected pipes using drain cocks!
•
Remove residues of the pumped medium out of the dia-
phragm pressure keeping valve by rinsing it with a com-
patible detergent!
•
The diaphragm pressure keeping valve damper can then
be removed out of the pipe.
16
Disposal
Shut-
down system. Please see “Shut-down”.
16.1 Dismantling and transport
•
Remove all fluid residues, clean thoroughly, neutralize
and decontaminate.
•
Package unit and ship.
16.2 Complete disposal
•
Remove all fluid residues from unit.
•
Drain off lubricants and dispose of according to regula-
tions!
•
Dismount materials and send them to a suitable waste
disposal company!
CAUTION !
The consignor is responsible for damage caused by leak-
ing lubricants and fluids!
