Grundfos MTR Montage- Und Betriebsanleitung Seite 8

A
Number of chambers (A) and number of impellers
(B)
Related information
5.1.2 Horizontal mounting of version H pumps
2.3.2.1 Key to codes
Note that each individual pump type is not available in
all variants.
Code Description
Pump version
A Basic version
B Oversize motor
C Inlet pipe
D Drainage back to tank
E Pump with certificate/approval
F 120 °C version
H Horizontal version
HS High pressure
J E-pump with different maximum speed
L With extension pipe
P Undersize motor
T Double oversize
X Special version
Pipe connection
F DIN flange
G ANSI flange
J JIS flange
8
Code
Materials
B
Shaft seal type designation
Seal face material (rotating and stationary seal
face)
Secondary seal material (rubber parts)
Description
M Square flange
W Internal thread
WB NPT internal thread
X Special version
A Basic version
I Wetted parts EN/DIN 1.4301 / AISI 304
N Wetted parts EN/DIN 1.4401 / AISI 316
X Special version
A O-ring seal with fixed seal driver
B Bellows seal, rubber
C O-ring seal with spring as seal driver
H Balanced cartridge seal with O-ring
R O-ring seal, type A, with reduced seal faces
A Carbon, metal-impregnated
B Carbon, synthetic resin-impregnated
Q Silicon carbide
U Cemented tungsten carbide
V Metal oxides, ceramic
E EPDM
®
F
FXM (Fluoraz )
®
K
FFKM (Kalrez )
P NBR
®
V
FKM (Viton )