GEM 673 Installation, Operating And Maintenance Instructions page 24

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 - BN2 (CF3M), investment casting Fe<0,5%
1.4435 (ASTM A 351 CF3M ≙ 316L), investment casting 34
1.4408, investment casting
1.4435 (316L), forged body
1.4435 (BN2), forged body Fe<0,5%
* only for body configurations B, M, and T
Diaphragm material
FPM
EPDM
EPDM
EPDM
PTFE/EPDM convex, PTFE loose max. 150°C*
PTFE/FPM convex, PTFE loose max. 150°C*
* Steam sterilization temperature / 20 min
Material complies with FDA requirements , except codes 4 and 5F
Valve body surface fi nish, internal contour
Ra ≤ 6.3 μm
Ra ≤ 6.3 μm
Ra ≤ 0.8 μm
Ra ≤ 0.8 μm
Ra ≤ 0.6 μm
Ra ≤ 0.6 μm
Ra ≤ 0.4 μm
Ra ≤ 0.4 μm
Ra ≤ 0.25 μm
Ra ≤ 0.25 μm
Ra acc. to DIN 4768; at defined reference points
Order example
Type
Nominal size
Body configuration (code)
Connection (code)
Valve body material (code)
Diaphragm material (code)
Control function (code)
Bonnet version (code)
Surface finish (code)
673_us
Code
Code
max. 150°C*
max. 150°C*
max. 150°C*
blasted internal/external
electropolished internal/external
mechanically polished internal, blasted external
electropolished internal/external
mechanically polished internal, blasted external
electropolished internal/external
mechanically polished internal, blasted external
electropolished internal/external
mechanically polished internal, blasted external
electropolished internal/external
673
673
Control function
17
Manually operated
18
32
Bonnet version
With seal adjuster, black handwheel
37
With seal adjuster, white handwheel
40
42
* autoclave capability
4
13
16
17
5E
5F
* only investment cast design
25 D 60
25
D
60
24 / 40
** ultra high purity chemicals
34 12 0
34
12
0
Code
0
Code
S*
W**
Code
1500*
1509*
1502
1503
1507
1508
1536
1537
1527
1516
S 1503
S
1503