Dry Bulk Compressors

Van Aalst Marine & Offshore BV uses specially designed marine type compressors.  We select Atlas Copco and Ingersoll Rand for our compressor suppliers for the following reasons:

-Small footprint area (connectable skids of compressor skid)
-Easy installation on board supply vessels
-Rigid construction suitable for operation at 40-degree roll
-Proven reliability
-Worldwide service network
-Continuity

Atlas Copco and Ingersoll Rand are also supplier of refrigerated air dryers.  The advantage being, the equipment is well suited to operate with each other and all possible problems can be solved efficiently and effectively.

Deck connections 

To connect the dry bulk system with the platform or shore the bulk handling system includes stainless steel quick acting couplings of the Weco type or Kamlock. These quick acting couplings are standard used on board of offshore support vessels. Dimension are 100, 125 or 150mm. All couplings are delivered with closing caps. During sea voyage these couplings can be closed with steel caps.

Butterfly valves

Butterfly valves are fitted throughout the system for the control of the discharge and loading process. These butterfly valves are operated by means of pneumatic actuators to ensure quick opening and closing of the valves to reduce wear on the valves as much as possible. By means of end switches, the PLC control constantly monitors the position of all valves. Should one of the valves fail to close properly, the PLC control immediately takes all the required action to prevent damage and pollution.

All selected materials have proven their reliability in the transport of abrasive materials. The body of the butterfly valves are made of cast iron and the valve, shaft and tapered pin are made of stainless steel. The valves have a vulcanised EPDM lining for a perfect seal.