Hitachi E-U Series, Instruction Manual

Page: 11 / 24

4. Installation Piping
Flange Connection
(a) Models; VB-001SE-U to 003SE-U
Flange Connection Sizes
MODEL
φ A
VB-001SE-U φ 1 inn. ( φ 25.5mm)
VB-002SE-U φ 1 1/4 inn. ( φ 32.5mm)
VB-003SE-U φ 1 1/2 inn. ( φ 40.5mm)
Install a filter if
foreign objects, such
as granules, dirt or
threads will be
present and could
be inhaled into the
Vortex Blower.
(NOTE: Make the
filter area as large
as possible to
minimize pressure
resistance).
• Use lightweight, flexible pipes
if possible.
• If steel pipes are used, install
a supporting stand to suspend
the pipe and prevent the pipe
from falling onto the
suction/discharge port.
• Align the centers of the pipe
correctly.
The flange size of Vortex
Blower is shown on the
table to the right. Please
see the illustration below
(Fig. 3.4) detailing how to
properly connect the hose to
the Vortex Blower.
Install a pressure gauge in
order to check the maximum
operating static pressure.
Mount the pressure gauge in
one of the two thread holes
provided for pressure
measurement on the left and
right sides of silencer.
Thread hole for pressure measurement
PF3/8 for model VB-004(S)E-U or
larger. (NOTE: There are 2” holes on
either side of the silencer).
Install the Vortex Blower so that
the unit is in proper contact with
the floor. Bolt it firmly to the
floor.
φ
A
Band
(Supplied by customer)
Flange
(with no thread)
Hose
(Supplied by customer)
Fig. 3.4 Pipe connection
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