KROHNE LS 6500 EN - Manual (Page 12)

3
INSTALLATION
12
LS 6500
www.krohne.com 03/2013 - 4000649103 - MA LS 6500 R03 en
3.4 Mounting of 3A marked products
The 3A mark is valid only when the product is mounted in a 3A marked counterpart and installed
acc. to the installation manual. Use also a 3A marked O-ring or gasket if relevant.
The 3A marked products conforms to the 3A sanitary standards criteria. Materials and surfaces
fulfil the FDA demands and are certified by EHEDG.
EPDM O-rings supplied with 3A marked products are conform to sanitary standards class II (8%
milk fat).
1 Use only 3A approved counterparts.
2 The inspection hole should be visible and drained. Face it downwards that leaking can be
observed.
3 Mount the device in a self-drained position.
4 Level the inner surface of the pipe with the counterpart.
5 Weld from the inside of the tank, if possible. Welds shall be free from cracks, crevices and
grooves. Weldings should be grinded to R
a
= 0.8
Figure 3-1: Mounting of 3A products in pipe installations (A) or tank installations (B)
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