VACUUBRAND MZ 2C EX +IK+EK - Manual (Page 53)

page 53 of 75
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.: 999128 / 29/04/2014
hose attachment
fig. ETFE elbow fitting
(example)
Notes on assembling fittings
The threads of the fittings at the pump heads might be sealed with PTFE bond (width 10 mm or 5 mm,
thickness 0.1 mm).
If the fittings are turned or have been removed, use new PTFE bond when reassembling.
If not using new fittings clean the thread of the fittings from PTFE bond.
Wind the thread of the fitting two times against the direction of turning in (anticlockwise) with PTFE
bond.
Tighten the PTFE bond firmly. Ensure that the PTFE bond ends flush with the fittings. Ensure that the
PTFE bond not covers the openings in the elbow fittings.
Screw in elbow fittings (clockwise) until only half of a thread course is visible. Do not overtighten. Avoid
canting of the thread.
direction of winding the thread with PTFE bond
thread
direction of winding the thread with PTFE bond
Seal only the lower half of the thread of the stainless steel fittings with PTFE
bond (width 5 mm), see figure. Sealing the complete thread with PTFE bond
leads to interruption of the conductive connection!
Never seal the hose attachment of metal fittings with PTFE bond.
fig. metal fitting (example)
{
PTFE bond
thread / section for PTFE bond
hose attachment
thread
{
PTFE bond
hose attachment