Edwards B424-09-000, Инструкция по эксплуатации, Страница: 10 / 24

B426-09-880 Issue A
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INSTALLATION
3 INSTALLATION
3.1 Unpack and inspect
Remove all the packing materials and check the QSB valve.
If the valve is damaged, notify your supplier and the carrier in writing within three days; state the Item Number of
the valve together with your order number and your suppliers invoice number. Retain the packing materials for
inspection. Do not use the valve if it is damaged.
3.2 Install the valve
Position the valve so that the pneumatic actuator and control accessories, if fitted, are accessible but do not cause
an obstruction. Allow sufficient clearance so that the valve plate does not touch any components of your vacuum
system when it is open (see
Figure 3 ).
The valve is normally supported by the pipeline it is fitted to and can be mounted in any orientation. However, we
recommend that you mount the valve with the valve shaft as close to horizontal as possible to reduce particulate
contamination of the valve shaft seals.
If you fit the valve with the flange in the horizontal position, support the valve so that it cannot fall before it is
secured in position.
Connect the valve to your vacuum system with the Co-Seal or trapped ‘O’ ring (supplied) and suitable fixing bolts
(not supplied). The number and size of the bolts that you will need are shown in
Table 3 .
Table 3 - Fixing bolts required to secure the valve
WARNING
Take appropriate safety precautions when you install the valve in a system in which dangerous
process substances have been pumped.
WARNING
Fit a cover over any exposed part of the valve actuator mechanism, so that fingers or other parts
of the body cannot get trapped.
Valve Bolt size Number
QSB63P M8 x 65 4
QSB100P M8 x 70 8