D & D Maintenance & Millwright Service, Inc. - Company Profile

Ball Valves

Ball valves provide tight shut-off and characterizable control. They have high rangeability due to the design of the regulating element, without the complications of side loads typical of butterfly or globe valves.

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Centrifugal Pumps

Centrifugal pumps consist of a set of rotating vanes, enclosed within a housing or casing, that are used to impart energy to a fluid through centrifugal force.

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Check Valves

Check valves are self-activating safety valves that permit gases and liquids to flow in only one direction, preventing process flow from reversing. They are classified as one-way directional valves. 

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Heat Exchangers

Heat exchangers are commonly used in a wide variety of industrial, chemical, and electronics processes to transfer energy and provide required heating or cooling.

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Industrial Chillers

Industrial chillers cool water using refrigeration cycles to provide a constant stream of coolant for manufacturing and laboratory processes.

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Industrial Cooling Systems and Equipment

Industrial cooling systems and industrial cooling equipment includes air-to-air, liquid-to-air, and liquid-to-liquid heat exchangers; ducts and/or pipes; and other devices for removing heat from a system that contains a heat source.

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Industrial Valves

Industrial valves are classified in many different ways. They can be distinguished by material of construction, media handled, and/or application.

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Installation and Rigging Services

Installation and rigging services move and install equipment or machinery.

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Plug Valves

Quarter-turn plug valves use a cylindrical or tapered plug with a hole in the center to control straight through flow when in the open position.

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Process Equipment and System Integration Services

Process equipment and system integration services provide modular systems and components used to process fluids, oil, gases, sea water and powders. This product area includes process skids, distillation equipment, evaporators, desalination systems, secondary recovery systems, chemical injection systems, and solvent recovery systems. 

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Storage Tanks and Process Tanks

Storage tanks and process tanks are bulk containers of varying size and configuration.

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