Key To Codes - Grundfos MTB Series Service Instructions Manual

1.3 Key to codes

Code for pump version
Code Description
A Basic version
Code for pipe connection
Code Description
F DIN flange
Code for materials, excluding plastic and rubber parts
Code Description
A Cast iron
Code for materials, including plastic and rubber parts
Code Description
B Rubber bellows seal
Q Silicon carbide
V FKM
P NBR
As standard, the pump has O-rings of FKM rubber.
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