Gemü 673 Original Einbau- Und Montageanleitung Seite 26

Valve body material
EN-GJS-400-18-LT (SG iron 40.3) PFA lined
EN-GJS-400-18-LT (SG iron 40.3) PP lined
1.4435, investment casting
1.4408, investment casting
1.4435 (316L), forged body
1.4435 (BN2), forged body Δ Fe<0.5%
1.4539, forged body
Diaphragm material
FKM
EPDM
EPDM
EPDM
EPDM
PTFE/EPDM, one-piece
PTFE/EPDM, two-piece
PTFE/PVDF/EPDM, three-piece
* for diaphragm size 8
** Code 5M not available in diaphragm size 10
*** Code 71 only available for bodies with PFA lining (code 17)
Material complies with FDA requirements, except codes 4 and 4A
Internal surface fi nishes for forged and block material bodies
Readings for Process
Contact Surfaces
Ra ≤ 0,80 μm
Ra ≤ 0,60 μm
Ra ≤ 0,40 μm
Ra ≤ 0,25 μm
Readings for Process
Contact Surfaces acc. to
ASME BPE 2016
Ra Max. = 0,76 μm (30 μinch)
Ra Max. = 0,64 μm (25 μinch)
Ra Max. = 0,51 μm (20 μinch)
Ra Max. = 0,38 μm (15 μinch)
673_us
Code
Code
4
13
Mechanically polished
Hygienic class
DIN 11866
H3
-
H4
H5
Mechanically polished
ASME BPE
Surface
4
Designation
SF3
SF2
SF1
-
Bonnet version
17 With seal adjuster, black handwheel
GEMÜ 673
18
With seal adjuster, black handwheel
C3
GEMÜ 673
37
With seal adjuster, black handwheel
GEMÜ 673
40
42
Control function
F4
Manually operated
4A*
3A*
17
19
36
54*
5M**
71***
2
Code
1502
1507
1536
1527
2
Code
SF3
SF2
SF1
-
26 / 44
diaphragm size 25
diaphragm size 40
diaphragm size 50
1
Electropolished
Hygienic class
DIN 11866
HE3
-
HE4
HE5
Electropolished
ASME BPE
Surface
Designation
-
SF6
SF5
SF4
Code
2TS
3TS
4TS
Code
0
Code
1503
1508
1537
1516
Code
-
SF6
SF5
SF4