Showing posts with label condensate pump. Show all posts
Showing posts with label condensate pump. Show all posts

Wednesday, January 18, 2017

Mountain States Engineering and Controls Expands Product Offering

duplex condensate return pump with receiver tank and sight glass
Duplex condensate return pump
Courtesy Sterling Sterlco
Mountain States Engineering and Controls has added the Sterling Sterlco line of condensate pump, boiler feed pump, and temperature control valve products to round out its comprehensive offering of instruments and equipment for steam systems and process cooling.

The Sterlco condensate pumps are available in simplex or duplex configurations, with pump and receiver capacity ratings to accommodate a broad range of industrial and commercial applications. Option selections round out the flexible product specification.

Boiler feed pump units from Sterlco provide a similar extensive range of receiver and pump capacities, along with options to meet application specific requirements.

The Sterlco self powered modulating temperature control valves are available in eight sizes and provide regulation of coolant flow to a machine or process. Their simple design provides rugged temperature actuated performance in a wide array of cooling applications.

There is more to learn about Sterling Sterlco condensate pumps, temperature control valves, and boiler feed pumps. For the latest product information, or to work on a solution to your steam or cooling system challenges, reach out to an application expert and combine your facilities and process knowledge with their product application expertise to develop effective solutions.



Tuesday, May 24, 2016

Understanding Condensate Pumps on a Steam Distribution System

industrial steam system
Diagram of industrial steam system
(courtesy of Watson McDaniel)
condensate pump is a specialized device intended for use in transferring condensate (water) produced in an industrial steam system. Condensate from a heating system or process is collected, then pumped to the condensate return system, where it is routed back to the boiler for reuse.

In certain cases, the steam pressure of the system may be sufficient to push the condensate through the steam traps and condensate return lines, back to the condensate holding tank in the boiler room. In most practical situations, however, one or more condensate return pumps are required to assist in overcoming gravity, pressure drops from long piping runs, and back pressure in return lines.

Condensate Return Pumps are either electrically-driven centrifugal pumps or non-electric mechanical pumps that use steam pressure as the motive force to pump the condensate. Non-electric pumps are referred to as Pressure Motive Pumps (PMPs).

A facility will often have a separate area that contains various components required for the generation of steam, such as a boiler, condensate holding or deaerator (DA) tank, boiler feed pump, water treatment, etc. Regulated by the boiler control system, the boiler feed pump sends condensate from the holding tank back to the boiler.

Pressure Motive Pumps (PMPs) are non-electric pumps which return condensate back to the boiler room; using steam pressure as the motive force. PMPs can be supplied as stand-alone units – which include a pump tank, the internal operating mechanism, and a set of inlet and outlet check valves, or: as a packaged system – which also includes the vented receiver tank (to collect the condensate) mounted on a common base.

The following is a comprehensive document, courtesy of Watson McDaniel, that provides a good general understanding of steam and condensate systems, traps and condensate pumps. 



Wednesday, August 26, 2015

Steam Condensate Return Systems - Basic and Essential

Condensate Return Pump
Condensate Return Station
Courtesy Roth Pump Company
Many industrial processes and plants utilize steam in their operations. The generation and use of steam is one of the oldest industrial processes and is so well understood that it may be considered more of a utility than part an industrial process. Whatever the case, if your process or installation uses steam, then steam is a necessary input for successful operation. Keeping your steam system performing at capacity frees up time and resources for the more complex aspects of your work.

If steam is not consumed directly by the process as a component input, it is steam's heat of vaporization that is utilized by the operation. Efficient use of steam as a heating medium results in the conversion of vapor to liquid (water). Returning the liquid condensate back to the boiler for conversion to vapor again is a necessary step in the efficient operation of a closed loop system.

Condensate return systems are certainly not high technology, but keep in mind that a steam system may be the lifeblood of not just one, but many operations throughout a plant. Avoiding downtime in the steam system, of which the condensate return pump is an integral part, ranks highly on the list of "Important Things for Plant Operations". Condensate return is critical. What are some strong attributes of a good and reliable condensate return pump?


Condensate return station with dual pumps
Condensate Return Station with Dual Pumps
Courtesy Roth Pump Company
  • Minimize or eliminate cavitation at high temperatures. Cavitation will impede pump performance and cause premature deterioration of pump and drive components.
  • Ability to handle a high load during cold starts through motor and pump design.
  • Design and configuration to handle high temperatures without deterioration of pump and motor.
  • Develop higher pressure at lower motor speeds for extended service life.
  • Avoidance of mechanical seals below water line.
  • Consider a single unit with dual pumps for handling high loads and extending service life.
Specifying and installing a solidly designed and built condensate return pump may require an investment of your time and consideration. The return on that investment will be reduced maintenance, repair, and downtime. Talk to a product specialist about your steam system. Combining your intimate operational knowledge and experience with their deep product knowledge and experience with many installations will yield a good solution.