SD66
2
INSTALLATION
Shipping and Storage
If the relay is to be stocked, stored, or shipped to another location prior to piping, make sure that the factory
installed plastic plugs are in the ports to prevent entry of moisture, dirt, or other contaminants.
Mounting
Mount the relay in any position, in a reasonably vibration-free
location. Make sure that the exhaust vent shown in Figure 1 is
not blocked. The direction of relay air flow is indicated by an
arrow on the bottom forging of the Relay.
PNEUMATIC CONNECTIONS
Refer to Figure 1 for the pneumatic connections; all connections
are 1/4" NPT. Recommended piping is 1/4" O.D. tubing,
although any scale-free piping may be used.
1.
Blow out all piping before connections are made to prevent
the possibility of dirt or chips entering the relay.
2.
Use pipe sealant sparingly, and then only on the male
threads. A non-hardening sealant is strongly recommended.
3.
Connect the relay to a source of clean, dry, oil-free relay air.
See Instrument Air Requirements.
CAUTION
Exceeding the specified ambient temperature limits can adversely affect performance
and may cause damage to the relay.
Pressures in excess of those stated in the Specifications section may cause damage to
the relay.
Instrument Air Requirements
Connect the instrument (i.e. relay) to a source of clean, dry, oil-free instrument air. Failure to do so will increase the
possibility of a malfunction or a deviation from specified performance.
CAUTION
Use of process fluids other than instrument air is not recommended. No claim is made as to
the suitability of this product for use with other process fluids, such as hazardous gases,
except as listed on the appropriate certificate. Non-approved instruments are suitable for
use with instrument air only. Optional features and modifications such as tapped exhaust do
not imply suitability for use with hazardous gases except as listed on the approval
certificate.
There are many types of synthetic compressor lubricants. Some may not be compatible with the materials used in
construction of the instrument. Wetting of these materials by such an oil mist or vapor, etc., may cause them to
deteriorate. This may ultimately result in failure of the instrument. The following materials are in contact with the
instrument air: ALUMINUM, BRASS, NEOPRENE, NICKEL PLATE, and STAINLESS STEEL.
Figure 1 Installation
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