General Marine Services
Pumps & Valves
Pumps & Valves regulate and control flow and pressure in pumping systems. They also play an important role in site safety. Understanding the types of valves and how they work can help end-users select the right valves for their application’s use.
About Door and Hatches
Watertight doors (STDs) are installed to prevent the ingress of water from one compartment to another during flooding. They are usually located at the bottom part of the ship where the engines and shaft tunnel are found. They may be kept close especially when the ship is underway or may be left open except during an emergency.
Installations and comissionings of machineries
Electric Motors & Generators
Electrical motors and generators are machines that either convert electrical energy inputs into forces or applied kinetic energy inputs into electrical energy. In principle, any electrical generator can also be operated as a motor and vice-versa. In practice, they will often be optimized for one application or the other.
All electrical machines operate due to the same principles derived from the study of electromagnetics. Therefore, it is appropriate to first discuss these underlying electromagnetic concepts as this is crucial for understanding their operation. However, before discussing these concepts it will also be useful to revise the concepts of vector algebra and vector calculus which are used extensively in this subject.
Winches (electrical & mechanical)
Fabrications (Steel Works)
Fabrication is the process used to manufacture steelwork components that will, when assembled and joined, form a complete frame. The frame generally uses readily available standard sections that are purchased from the steelmaker or steel stockholder, together with such items as protective coatings and bolts from other specialist suppliers.
Although a wide range of section shapes and sizes are produced, the designer may find that the required section size is not available. In this case, built-up girders may be fabricated from the plate. Sections and plate girders may also be strengthened by stiffening the web or flanges depending upon the load to be carried.
Arc Zinc Spray
Babbitt metal, also spelled Babbit Metal, is any of several tin- or lead-based alloys used as bearing material for axles and crankshafts, based on the tin alloy invented in 1839 by Isaac Babbitt for use in steam engines. Modern babbitts provide a low-friction lining for bearing shells made of stronger metals such as cast iron, steel, or bronze. They may be made of: (1) high-tin alloys with small quantities of antimony and copper; (2) high-lead alloys containing antimony, arsenic, and tin; and (3) intermediate tin-lead alloys with antimony and copper.