19.2.2 Scenario 2: Potential of being wetted due to environment
or spillage
If the pump will be exposed to chemicals, due to spillage or the environment the pump is operating in (for
example corrosive gases), then chemical compatibliity of the materials of construction in
construction: Potential of being wetted due to environment or spillage" below
should be checked for chemical
compatibility using standard engineering chemical compatibility guides.
Materials of construction: Potential of being wetted due to environment or spillage
Component
qdos 20
qdos 30
qdos 60
qdos 120
qdos® CWT™
Drive
Drive casework
20 % Glass Filled Polyphenyl ether / PS
Drive casework seals Silicone sponge SE515
Keypad
Polyester
Drive shaft
Stainless steel 440C
Drive shaft seals
NBR
Pumphead
Pumphead casework Noryl
PPS
Noryl
Noryl
PPS
Pumphead ports
SEBS: PVDF
PU: PVDF
SEBS: PP
Santoprene: PP
SEBS: PVDF
PU: PVDF
Santoprene: PP
Santoprene: PP
EPDM: PP
FKM: PP
Connection collars
PP
!
WARNING
Chemicals could enter the pump as a result of spillage or the environment the pump is
operating in, due to loss of ingress protection by chemicals which are incompatible with the
Drive casework, Drive casework seals, Keypad, Drive shaft or Drive shaft seal provided in
"19.2.2 Scenario 2: Potential of being wetted due to environment or spillage" above
The internal parts of the drive unit contain Aluminium which may react with some aggressive
chemicals to form an explosive gas. If you are pumping a chemical that may react with
Aluminium to form an explosive gas, you must ensure the chemicals being pumped and the
environment are chemically compatible with the Drive casework, Drive casework seals,
Keypad, Drive shaft or Drive shaft seal provided in
"19.2.2 Scenario 2: Potential of being wetted
due to environment or spillage" above
.
19 CHEMICAL COMPATIBILITY
207
Содержание qdos 20
Страница 40: ...6 Storage 6 1 Storage conditions 41 6 2 Shelf life 41 6 STORAGE 40...
Страница 169: ...Procedure 9 NEXT 10 Use keys to set Alert Level Procedure 11 SELECT to return to FLUID LEVEL SETTINGS 16 OPERATION 169...
Страница 192: ...NOTICE The pumphead locking lever is designed to be loosened or tightened by hand 17 MAINTENANCE 192...