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Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check
carefully the validity of this document with respect to his product. Manual-no.: 999021 / 07/05/2008
page 12 of 22
Accessories - Installation
Non return valve (flapper valve)
................................
639683
(Simultaneous operation of two systems at different pressure
levels, stainless steel/FFKM, leak rate < 10
-3
mbar x l/s for pres-
sure differences > 500 mbar.)
Hose (caoutchouc)
10 mm ID ....................................
686002
Digital vacuum gauge DVR 2
....................................
682902
ME 8
Small flange
NW 16 ..................................................
662592
Clamping ring
NW 10/16 (aluminium) ........................
660000
Centring ring
NW 10/16 (NBR) ...................................
660190
MZ 4
Small flange
NW 16 ...................................................
662590
Clamping ring
NW 10/16 (aluminium) ........................
660000
Centring ring
NW 10/16 (NBR) ...................................
660190
MZ 4
Gas ballast valve
.......................................................
685812
(Note seal rings when assembling.)
MD 4
Gas ballast valve
.......................................................
685812
(Note seal rings when assembling.)