Heater Treaters

Enhancing Separation Efficiency and Quality

Experience state-of-the-art oil and water emulsion treatment with our Power Service, Inc. versatile heater treaters designs. Built to the ASME designs and construction standards, our heater treaters are not just equipment; they answer your needs for efficient separation with capacities up to 25,000 BPD. Whether heavy-wall construction or hybrid separators, our solutions are tailored to fit your application and budget, ensuring optimum performance and durability.

Power Service, A DNOW Company, has heater treaters that separate oil and water using heat and ASME standards. Up to 25,000 BPD.

Product Information


Power Service is part of our DNOW U.S. Process Solutions operating unit, providing the ultimate solution for your oil and water separation challenges. Our heater treaters utilize advanced thermal technology and retention time techniques to separate oil and water emulsions effectively. Built to ASME standards, these treaters guarantee robust performance and exceptional reliability.

DNOW U.S. Process Solutions sells heater treater pressure vessels to efficiently separate oil and water emulsions in oil and gas production.

Products Offered

We offer treaters in various configurations, based on your application and budget.

  • Vertical and horizontal treaters
  • Heater treaters
  • Heavy-wall construction
  • Hybrid separators (separator + treater)

Features and Benefits

Heater treaters are pressure vessels that offer several key benefits in oil and gas production:

  • Improved Oil Quality:  The primary function of these vessels is to separate oil from unwanted elements like water and gas. Applying heat and pressure creates an environment where these components can be effectively separated, resulting in purer crude oil.
  • Efficient Processing:  Heater treaters can handle emulsions, a stubborn mix of oil and water. The heating process helps break these emulsions down, allowing for more efficient separation and faster crude oil processing.
  • Space Optimization: These vessels have two primary configurations: vertical and horizontal. Vertical heater treaters are known for their smaller footprint, making them ideal for locations with limited space.
  • Cost-Effectiveness:  Enabling efficient oil processing can reduce overall production costs.
  • Pressure Versatility:  Depending on the specific application, heater treaters can be designed to operate at various pressure ranges, which can be advantageous in certain situations.


Materials of Construction Carbon steel, stainless & alloy steel
Dimensions Vessels up to 12 ft. diameter, 100 ft. length, 8 in. wall thickness
Lifting Capabilities Up to 100 tons
Non-Destructive Testing Ultrasonic, hydrostatic, radiographic, dye penetrant inspection, positive material identification (PMI), hardness and others
Finishing Surface prep, blasting, internal and external coating, painting
Engineering Support Design, process simulation, finite element analysis (FEA)


DNOW Process Solutions Tomball Facility Capabilitiesfile download
Power Service Products & Services Guidefile download