Emerson TopWorx D Series Installation, Operation & Maintenance Manual page 11

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Pneumatic Hookup Procedures
Prior to connecting the supply air to the spool valve, flush the
system to remove any debris or contaminates. Galvanized
pipe can easily flake and contaminate the system and there-
fore is not recommended. A 40 micron point of use filter at
every device is recommended.
4-Way Spool Valves
The TopWorx spool valve is a 5 port, 4-way valve driven by
an internally mounted pilot valve. The spool valve supply port
and work ports are marked as follows:
***Never Plug, Block or Restrict Port 5***
Always install vents
or speed controls
Supply
3
5 1
4
2
Port to Close Port to Open
DOUBLE ACTING ACTUATORS
Highly
mended
TopWorx highly recommends Locktite 567 brand thread seal-
ant. Do not use a hard setting pipe compound. If Teflon
thread seal tape is used, start the wrap on the second thread
from the leading thread of the fitting. This will prevent tape
shreds from contaminating the spool valve seals.
Breathers (AL-M31) should be installed in the exhaust ports
to keep debris from falling into the spool valve and damaging
the seals. This must be addressed prior to installation, or
storage.
A flow control may be used in Port 3, but should NEVER BE
USED in Port 5. Any blockage or restriction may cause an
internal pressure build-up inside the encloser and pose a
safety issue.
Supply
5 1 3
4 2
Plug /Close
Port to Open
SPRING RETURN ACTUATORS
Recom-
Spool Valve Specifications
Medium Dried, filtered air (40 micron)
Max Operating 100psi (0.7 MPa) (6.89Bar)
Pressure
Min. Operating 30psi (0.28 MPa) (2.76Bar)
Pressure
Ambient Refer to Product Nameplate Marking
Temperature Range
Flow Coefficient 1.2Cv or 3.0Cv
Environment Rating Type 4, 4X, IP67
Port Size 1/2" NPT for 3.0Cv valve
1/4" NPT for 1.2Cv valve
Manual Override Available in Latching/Non-Latching
Push Type & Palm Actuator Type
Valve Body Available in Hardcoat Anodized
Aluminum, 304, or 316 Stainless Steel
Valve Seals Spool Seals: Buna-N
Valve Body Seals available in
Buna & Silicone,
Don't forget!
TopWorx has a complete line of
breathers, flow controls, regulators
and filters.
Check out www.topworx.com or call
us at 502.969.8000 for more details
TM
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