19.2.3.1 Materials of construction that have the potential of being wetted
when the tube or fluid contacting element fails
Pump
Component
qdos 20
qdos 30
qdos 60
qdos 120
qdos®
CWT™
Pumphead
Pumphead
enclosure
30 % GF Polyphenyl
ether+PS
PC
PP
316 stainless steel
40 % GF PPS 20 % GF PP
PC
PA6
316 stainless steel
30 % GF Polyphenyl
ether+PS
PC
PP
316 stainless steel
40 % GF PPS
Pumphead
enclosure seals
NBR
NBR
NBR
EPDM, NBR
Rotor
PA6
PA6
PA6
303 stainless
steel
Leak detection
window
PC
Bearings
Steel
Clamp ring
—
30 % GF PA
Internal baffle
POM
—
POM
—
Vent body
30 % GF Polyphenyl
ether+PS
PP
POM
30 % GF Polyphenyl
ether+PS
—
Vent springs
316 stainless steel
316 stainless steel steel 316 stainless steel steel
—
Lubricant
PFPE
PFPE
PFPE
PFPE
Pumphead to drive interface area
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
Gearbox spigot
cover
Noryl
Drive internal parts Aluminium
19 CHEMICAL COMPATIBILITY
209