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High Pressure Steam Generators - Natural Circulation

Product Code: UM-HP, UM-HP-PA

Product Description 

Operating Pressures:

  • Up to 1450 psi (100 bar)

Fuel Option:

  • Natural Gas
  • #2 Fuel Oil/Diesel
  • Light Fuel Oils
  • LPG
  • Dual Fuel
  • Additional Fuel Options Available


  • Vertical

Helical Coil Design

Combustion Air Preheater Optional

  • Model UM HP-PA

High Pressure Steam Generators - Natural Circulation

Product Description

The UM-HP Steam Generators are our natural circulation, high pressure steam generators (high pressure steam boilers). The internal coils of the steam generator surround the flame of the burner, extracting there thermal energy and transferring it directly to the process fluid, in this case water. The water then changes phase and is supplied to the customer’s process as high pressure steam. The UM-HP is designed with minimal thermal inertia, allowing for quick start up (roughly 2 to 3 minutes) and is ideal for continuous or batch processes. These high pressure steam generators are primarily used with a deodorizer (deodoriser) during the final stage in oil refining. Deodorising removes odoriferous material, free fatty acids and other undesired minor components to produce edible oils or biodiesel.

The UM-HP has also been designed to be supplied with a variety of forced draft burners, provided by some of the world’s leading burner manufactures. This allows us to utilize a variety of fuels, meet stringent emissions requirements and even allow our customers the opportunity to select the burner of their choice.

The UM-HP is supplied in only a vertical configuration to minimize the risk of vapor lock.

The UM-HP-PA is our high efficiency option of the UM-HP Steam Generator. The UM-HP-PA is constructed in a vertical orientation and is supplied with a combustion air preheater alongside the heater.

The UM-HP and UM-HP-PA Steam Generators’ are designed and constructed to various local code requirements around the world. The most common codes are ASME with National Board registration for the United States, CRN for Canada and CE/PED/TUV/DIN for Europe. Additional code requirements may be met if necessary.

Package and containerized systems are available for both the UM-HP and UM-HP-PA Steam Generators. 



Steam Generators In General 

Steam Generators are a form of low water content boilers used to provide customers with steam as a heat transfer media. There are two types of low water content steam generators, forced circulation and natural circulation. Forced circulation steam generators utilize a pump to maintain a steady and constant supply of water to the generator. Water is supplied to the steam generator at a rate determined by the customers' process requirements. As heat demand fluctuates, the burner and pump will make the necessary adjustments to properly supply sufficient steam to the customer's process. Natural circulation steam generators utilize gravity and differential heat energy to maintain a steady and constant supply of water to the generator.