Gemü 611 Montageanleitung Seite 22

Diaphragm material
FPM
EPDM
EPDM
EPDM
PTFE (TFM) / EPDM convex, PTFE (TFM) loose
diaphragm size 25 - 100
PTFE (TFM) / EPDM, PTFE (TFM) laminated
diaphragm size 10
Material complies with FDA requirements, except code 4 and 14
* For use with valve bodies see data sheet page 12
Ra ≤ 6.3 μm blasted internal/external
Ra ≤ 6.3 μm optical electropolishing
Ra ≤ 0.8 μm mechanically polished internal, blasted external
Ra ≤ 0.8 μm electropolished internal/external
Ra ≤ 0.6 μm mechanically polished internal, blasted external
Ra ≤ 0.6 μm electropolished internal/external
Ra ≤ 0.4 μm mechanically polished internal, blasted external
Ra ≤ 0.4 μm electropolished internal/external
Ra ≤ 0.25 μm mechanically polished internal, blasted external
Ra ≤ 0.25 μm electropolished internal/external
Ra acc. to DIN 4768; at defined reference points
Surface finish data refer to medium wetted surfaces
Order example
Type
Nominal size
Body configuration (code)
Connection (code)
Valve body material (code)
Diaphragm material (code)
Control function (code)
Accessory (code)
Surface finish (code)
611, 671
Code
4
13
14
17
5E*
52
Valve body surface finish, internal contour
671 25
671
25
22 / 36
Control function
Manually operated GEMÜ 611, 671
Manually operated (lockable handwheel) only GEMÜ 671 L
Accessory
Threaded connection for position indicator,
only GEMÜ 671
Forged body Investment casting
Code 40, 42
-
-
X
X
X
X
X
X
X
X
D 60 34
D
60
34
Code
Code
Code
Code 32, 34
X 1500
X 1509
X 1502
- 1503
X 1507
- 1508
- 1536
- 1537
- 1527
- 1516
17 0 Z 1500
17
0
Z
1500
0
Z