
14
Rotavapor R-250
4.8 Installation of the Descending Glass Assembly
All glassware used must be intact, with no signs of cracks,
spreading impact marks, or other damage. Inspect the glass-
ware visually before installing it.
s &IXTHEDESCENDINGDISTRIBUTORHEAD햲 in position on the
gear head using the DN 70 EasyClamp connection.
s &IT THE COOLING WATER HOSE NIPPLES 햳 to the two or, if
appropriate, three coolers 햴.
s 0UTTHEEXPANSIONVESSEL햵 onto the distribution head
햲 and secure it with the DN 40 EasyClamp connection.
s &ITTHETHREEWAYlTTING햶 onto the receiver using the DN
25 EasyClamp connection.
s 3ECURETHECOOLERHOLDER햷 to the two or three coolers
햴, as appropriate, and insert in the pivoting clamps 햸.
s &ITTHEVACUUMCONNECTOR햹 or the third cooler.
s &ITTHEBRANCHINGPIECE햺 on the cooler 햴 and the ex-
pansion vessel 햵 and connect it using the EasyClamp
connection. Align the glass components in a vertical
position and secure them using the pivoting clamps 햸.
s &ITTHEINLETTAP햻 into the distribution head and tighten
the SVL 30 nut.
s 3CREWTHETEMPERATURESENSOR햽 into the branching piece
햺.
s 4IGHTENALL%ASY#LAMPCONNECTIONSEVENLYANDINPARALLEL
s 4URNTHEPOSITIONINGNUTTORAISETHEmASKSUPPORT#ONNECT
the bracket of the receiving flask to the condensation
flask.
4 Putting into Operation
Fig. 4.7: Descending glass assembly
햸
햻
햲
햶
햷
햴
햺
햹
햽
햵
햳
햳
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