The bulkhead block DPHS-2-PCV-R-T is made for external connection of actuator located in hazard area (submerge, Ex etc,) the bulkhead block is replacing actuator block and DPHS-block mounted outside tank for submerged actuator. The function of the block is identical to CB2-PCV-R-T-H and thus emergency operation from this block is by means of portable handpump, but it is made for bulkhead mounting instead of mounting on actuator.