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Installation
M588-00-880 Issue E
For pumps running on dusty processes Edwards recommend that the exhaust line is cleaned regularly as part
of routine maintenance. Accumulation of dust in the exhaust line can reduce conductance and therefore
increase exhaust pressure which may damage the pump. The frequency of exhaust line cleaning depends on
the process. On very dusty applications, use a low-impedance inlet filter to reduce maintenance
requirements.
1. Referring to Figure 5, remove the temporary cover or blanking plate from the inlet of the dry pumping system.
Take care not to drop screws, tools and so forth into the pump inlet. Retain the nuts, bolts, washers and
blanking plate for future use. Retain the temporary cover for future use on non-contaminated pumps only. The
inlet O-ring is supplied with the pump, it is fitted underneath the inlet flange cover.
2. Use the O-ring supplied and suitable nuts, bolts and washers (not supplied) to connect the inlet flange
(Figure 2, item 5) to the vacuum system. The inlet flange is not designed for use with a trapped O-ring or
centering ring. Use Edwards half claw clamps when connecting an ISO style foreline flange to the dry pumping
system inlet. Refer to Figure 5.
3. Use the trapped O-ring and clamp supplied to connect the exhaust outlet (Figure 2, item 3 or Figure 3 item 20)
to the exhaust extraction system.
Figure 5 - Connecting the pump inlet
Flange diameter
Half claw clamp part
number
Qty required Tightening torque (Nm)
ISO63 C10007093 4 5
ISO100 C10007093 8 5
ISO160 C10011093 8 5
ISO200 C10011093 12 5
ISO250 C10011093 12 5
Use Edwards half claw clamps:
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