Page 182 - The ROV Manual - A User Guide for Remotely Operated Vehicles 2nd edition

Some connectors incorporate a valve for oil filling and bleeding the connector interface. The mating PBOF bulkhead connector is then rated for open face pressure since the connector itself is at ambient pressure (i.e., little or no pressure differential across the connector). Other manufacturers have adapted a PBOF back shell to their standard line of rubber-molded connectors, as the one illustrated in Figure 8.9.
The plastic or rubber hose is slid over a hose barb fitting on the back of the connector and secured with a hose clamp. Then the tube is filled with oil. A second connector is installed on the opposite end in the same manner as the first, excess air is squeezed out, and the second connector is pressed into the oil-filled tube. A hose clamp secures the tube to the back of the second connector.
Penetrators
Penetrators (Figure 8.10) bring wires to the interior of the pressure housing but cannot be disconnected.
Cable glands (Figures 8.11 and 8.12)
• Allows cable to enter an enclosure.
• Splash proof.
• Not recommended for deep submerged use. Check with the manufacturer for depth
recommendations.
• Not for dynamic applications where the cable will be flexed at the gland.
Jumper
A jumper (Figure 8.13) is a cable assembly with male to female connectors, much like a com- mon household extension cord.
Adapter cable
An adapter cable (Figure 8.14) transitions from one connector type to another.
FIGURE 8.10
(a) Right angle and in-line penetrators with short threaded post for installation in threaded endcap. (b) Right angle rubber molded with extended threaded post for use with internal draw-down nut.
(a) (Courtesy Ocean Innovations.) (b) (Courtesy MacArtney.)
8.2 Definitions 171