A sectional view of the silencer is shown in
Table 16. Technical data
Maximum back pressure 0.2 bar gauge
Mass 265 g
Port size NW25
Installation
CAUTION:
The silencer is not recommended for use with pumping hazardous substances.
A pressure relief valve is not tted to the silencer.
Make sure the pump is switched off before tting the silencer.
1. Clean the face of the pump exhaust.1.
2. Place the centering O-ring in the end of the NW25 backing port and2.
seat the silencer in the pump exhaust.
3. Fit the clamp and tighten to secure the silencer.3.
Silencer maintenance
WARNING: DANGEROUS VOLTAGE
Risk of electric shock. Do not attempt to dismantle the silencer while the pump is
running.
Make sur
e the pump is isolated from its electrical supply before removing the
silencer.
WARNING: WEAR PROTECTIVE EQUIPMENT
Do not inhale the tip seal dust. Do not blow the tip seal dust from the silencer with
compressed air.
Take all necessary precautions if toxic or dangerous substances have been
pumped. Wear PPE when handling contaminated lters and lter elements.
The foam block and polyester element need to be inspected periodically. We
recommend both are replaced every 9000 hours of pump use. The silencer
has been designed to handle 10 cc of tip-seal dust without affecting the
performance of the pump. The silencer spares kit contains both items. For
part number refer to
.
Make sure the pump is switched off before removing the silencer.
Remove the NW25 clamp and silencer from the pump exhaust. Hold the top
half of the silencer with one hand, and the bottom half with the other hand.
Keeping one hand steady, twist clockwise with the other, and the two halves
will separate. The polyester element will be retained in the top half. With
the element uppermost, lift the element out by lightly gripping the protruding
surface of the element. Put the element to one side ready to inspect it. The
foam block is pushed onto the outlet pipe and is trapped into position by the
polyester element.
50 300668736_002_C7 - © Leybold
Accessories