<4.
Wiring and Piping
>
4-3
IM 21B03D01-01E
Electronic controller
Supply air
pressure
Stop valve
Air filter
Reducing
valve
Pressure
gauge
Non-
hazardous
area
Hazardous
area
+
–
PK200 current-to
pneumatic converter
Control valve
F0401.ai
Figure 4.1
General-Use and Flameproof Type Wiring
CAUTION
Be sure to apply non-hardening sealant
to the threads for water proofing.
Terminal box
Screw connection type
Flexible fitting
Sealing fitting
Nipple
Insulated wires
Heavy-gauge
steel conduit
Tee joint
Drain plug
F0402.ai
Figure 4.2
Flameproof Metal Conduit Wiring
CAUTION
Be sure to apply non-hardening sealant
to the threads for water proofing.
F0402.ai
Lock nut
Wrench
Union coupling
Clamp nut
Clamp ring
Gland
Washer
Rubber packing
Wrench
Lock nut
O-ring
Adapter body
Packing box
Union cover
Cable
Figure 4.3
Flameproof Gland Packing Installation (Option code: /G11 and /G21)
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