HF-7-600 Page 7
PIPING
Inlet and discharge connections on all blowers are large enough to handle maximum volume with
minimum friction loss. Reducing the pipe diameter on either inlet or discharge will only create additional
line loss and increase the overall pressure differential.
Excessive weight of piping and fittings will cause internal misalignment and premature wear. Never allow
the blower to carry the weight of the pipe. If possible, a spool or sleeve-type expansion joint should be
installed between the unit and the piping. Where a flexible connection is not practical, the weight of the
rigid connection must be separately supported. All system piping must be cleaned internally before
connecting to the blower.
Gardner Denver blowers are shipped dry from the factory. Do not attempt to operate the blower
before following proper lubrication instructions. Permanent damage to the gears, bearings and
seals will occur.
