V&P Scientific, Inc.
3
Technical Note 455
STEP 3
: The aluminum lid can then be placed over VP 416-96-MAT taking care to
align center
hole with the others
.
STEP 4
: Threaded rod of tightening puck can then be passed through center holes and screwed
down. Please note that V&P recommends tightening
NO MORE THAN 1/3 turn PAST
HAND TIGHT
. To tighten further is unnecessary and may strip the threads.
As an illustration, note starting position of tightening puck (at
“12 o’clock”
position)
followed by fully tightened position (at
“5 o’clock”
position).
3.
Following the preceding steps, you will arrive at the fully sealed reaction block, shown in
Figure 5
, ready for heating.
Puck
Lid
PFA Film
and Rubber
mat
Tightening puck engaged
but not tightened
Tightening puck fully
tightened
Figure 3. 3-Zone reaction block base
(glass vials sold separately)
Figure 4. 3-Zone reaction block
base, vials, PFA film, mat, lid and
tightening puck
