Page 178 - The ROV Manual - A User Guide for Remotely Operated Vehicles 2nd edition

conformal curved, accurately located surface) provides the sealing surface for the O-ring face seal. A threaded post bulkhead connector can also be mounted using a simple clearance through-hole and secured with a nut and washer on the interior side. A flange-mount bulkhead connector is attached to a pressure housing using machine screws that secure the connector. The screws pull the flange mount against the pressure housing, compressing the O-ring against a spot face on the pres- sure housing, and thereby making the watertight seal. Particular attention must be paid to avoid dis- similar materials and anaerobic corrosion.
Threaded post-type connectors
BCR, bulkhead connector receptacle BCP, bulkhead connector plug
Flange mount-type connectors (Figure 8.3) FCR, flange connector receptacle
FCP, flange connector plug
Inserts (Figure 8.4)
Fits inside connector shell
CIR, connector insert receptacle (sockets) CIP, connector insert plug (pins)
In-line connectors or CCP/CCR, whip or pigtail (Figure 8.5) CCP, cable connector plug
CCR, cable connector receptacle
Dummy connectors and sealing caps
These keep electrical contacts clean when the connector is not mated.
8.2 Definitions 167
FIGURE 8.3
Flange mount bulkhead connectors.
(Courtesy Ocean Innovations.)