Warning danger, Warning, Caution – Gast SDR6 User Manual
Page 2

Electrical Connection
Your safety and the safety of others
is extremely important.
We have provided many important safety messages
in this manual and on your product. Always read
and obey all safety messages.
This is the safety alert symbol. This symbol
alerts you to hazards that can kill or hurt you and
others. The safety alert symbol and the words
“DANGER” and “WARNING” will precede all safety
messages. These words mean:
You will be killed or seriously injured if you don’t
follow instructions.
You can be killed or seriously injured if you don’t
follow instructions.
All safety messages will identify the hazard, tell you
how to reduce the chance of injury, and tell you
what can happen if the safety instructions are not
followed.
Correct installation is your responsibility.
Make sure
you have the proper installation conditions and that
installation clearances do not block air flow.
Blocking air flow over the product in any way can
cause the product to overheat.
The blower must be installed with the properly sized
inlet filter, gauge and relief valve to protect the
product from dirt and over-heating.
INSTALLATION
Check rotation before connecting to plumbing. Inlet and
outlet ports are not designed to support plumbing.
Remove plugs from the IN and OUT ports. Use a small
amount of pipe thread lubricant when connecting
plumbing to protect the aluminum blower threads.
Connect with pipe and fittings that are the same size or
larger than the productʼs threaded ports. When
installing two blowers in parallel, use plumbing that is
two whole pipe sizes larger in diameter than that of the
blower. Be sure to connect the intake and exhaust
plumbing to the correct inlet and outlet ports.
Plumbing to remove the hot discharge air of large
Accessories
Install two vacuum gauges, one before and one after
filter, to monitor restriction through filters. As filters
become clogged, performance efficiency will be
reduced. Filters should be checked periodically and
replaced when necessary. See pages 6, 7 and 8 for
installation.
Install a relief valve to avoid changes in pressure or
vacuum that can cause overloading of large blowers.
Install an intake filter with a relief valve to prevent
foreign material from entering blower if blower is used in
a vacuum application in a dirty environment. In
applications where there is high humidity or liquids
being used in the process, install a moisture separator.
See Recommended Accessories on pages 7-9 or
consult your Gast Distributor/Representative for
additional filter and accessories recommendations. Do
Not install check valves that close with a strong spring.
The recommended check valves (page 7) provide
minimal pressure drop, positive sealing and are
resistant to the high discharge temperatures of large
blowers.
WARNING
DANGER
Mounting
The single impeller blower should be oriented with the
shaft in a horizontal position, unless the modelʼs product
features state otherwise. Mounting the product to a
stable, rigid operating surface and using shock mounts will
reduce noise and vibration. Make sure that appropriate
noise dampening media is used with respect to the
working media for the application.
Rotation
From the drive side of the blower, check that the blower is
rotating clockwise. (he drive side is marked with an arrow
on most models.) Proper rotation can also be checked by
the air flow at the IN and OUT ports.
2
If working media other than standard atmosphere
is to be pumped through unit, consult factory for
acceptable parameters. Severe personal injury may
occur if hazard is ignored.
WARNING
CAUTION:
Never lubricate this oil-less blower. The sealed
bearings are grease packed. All of the wetted
components are made with corrosion resistant
material and with paper filtration. The unit should
last for years.
Internal wetted components are either stainless
steel or coated for corrosion resistance. The blower
is sealed with a shaft seal and impregnated castings
to prevent working fluid leakage during operation.
Plumbing
Remove any foreign material (burrs, chips, welding
drops, slag, pipe cuttings, excess sealant, sand or
lime)
Check rotation before connecting to plumbing
. Inlet
and outlet ports are not designed to support plumbing.