Page 226 - Electromechanical Devices and Components Illustrated Sourcebook

188 Electromechanical Devices & Components Illustrated Sourcebook

Cover Plate
Snap-In Coupler
Cover Screw
Gasket

Through Wire
Snap-In x NPT

Lock Nut

Tee Figure 10-67 Flexible PVC Conduit
Fittings

Flexible PVC conduit uses plastic snap-to-connect fittings,
as shown in Figure 10-67. These fitting are exceptionally easy
to connect. The conduit is cut to length and simply plugged
into the fitting. To release the conduit, two tabs must be
Elbow
deflected out and away from the body of the fitting.
Figure 10-68 shows a few fittings that are used with liquid
tight conduit. These fittings are collet type units with a rubber
element to provide a liquid tight seal.
Figure 10-65 Conduit Access Ports
Heavy duty plastic conduit utilizes a series of special fit-
tings, as shown in Figure 10-69. These fittings have a center
piece to counter the crushing effect of the collet. They also
have hand tight collet nuts and sealing collets.
Figure 10-65 shows three basic conduit ports. These units
provide ready access to the internal wires. They can be added
to an existing system for expansion or they can be used to
45° Elbow
limit the length of wire pulls. These fittings are readily avail-
able for EMT, rigid, and PVC conduit.
Flexible metal conduit requires special fitting designs, as 90° Elbow
shown in Figure 10-66. These fittings are supplied in screw-
on or screw clamp types and are commonly available through
any electrical supply house or hardware store. With Cable
Strain Relief

Coupler Coupler x NPT
Screw-On Screw-On
Coupler x NPT Figure 10-68 Liquid Tight Conduit Fittings

Screw Clamp Screw Clamp 45° Elbow
Coupler x NPT

90° Elbow

Lock Nut

90° Screw Clamp
x NPT Coupler Coupler x
NPT

Figure 10-66 Flexible Metal Conduit Fittings Figure 10-69 Heavy Duty Plastic Conduit Fittings