Marine Bulkhead Transmission Device Inquiry The GCD type bulkhead drive device is suitable to vessels in flammable and explosive place carrying chemicals,liquefied gas,raw petroleum and commodity petroleum.Through this device,the marine motor installed in the engine room drives the mechanical equipment(e.g liquid pump,ballast pump) in flammable and explosive place. The GCD type bulkhead drive device meets the specification requirements of the classification society and features in simple structure and reliable drive.