Tuesday, May 24, 2016

Check Valve Incorporates Useful Features For Industrial Process Fluid Systems

Large industrial check valve
Check valve with integral straightening vanes
Courtesy Titan Flow Control
A check valve allows fluid flow in one direction (forward) and prevents it in another. They are employed extensively in industrial and commercial piping systems to prevent the reverse flow of a fluid that would produce an undesirable effect. Numerous sizes and types are available to meet specific application challenges. Each check valve must be properly selected to accommodate the pressure, temperature, and flow characteristics of each system. Proper materials of construction must be selected to provide suitable service with the process media.

Check valves are commonly applied to protect pumps from any induced reverse flow in a system. They can also be found in combination with other valves, providing assurance that the process fluid flows only in one direction.

One manufacturer, Titan Flow Control, incorporates a number of features into a single unit to provide wide ranging application. Features of the check valve are detailed below, along with a data sheet with more technical information. You can always get the latest available product data and solid application assistance from the process control specialists at Mountain States Engineering. Combining your process knowledge with their product application expertise will yield a positive outcome.


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. 



Monday, May 16, 2016

Shell and Tube Heat Exchanger Fundamentals

shell and tube heat exchanger diagram and cutaway view
Shell and Tube Heat Exchanger
Shell and tube heat exchanges are found throughout fluid based industrial process control operations where heat must be transferred between two closed fluid systems. There are numerous design variants intended to provide levels of performance tailored to specific process requirements.

Provided below is a white paper that illustrates and explains the fundamentals of heat exchanger performance for shell and tube units. Covered are the three modes of heat transfer: conduction, convection, and radiation. Three sample application cases are covered, showing how the formulas are applied, and illustrations provide for even better understanding of basic operating principals. The article is sure to refresh or enhance your heat exchanger knowledge.

MSEC brings many years of heat exchanger application experience to bear on your application requirements. Share your new or drop-in replacement heat exchanger challenges with MSEC and work toward the best installed solution.



Friday, May 6, 2016

Solenoid Valves - A Staple of Process Control

Stainless steel industrial solenoid valve
Series I Solenoid Valve
Courtesy Granzow
The Granzow line of fluid control products for industrial and commercial application includes an extensive array of solenoid valves that are suited for a wide variety of applications. The short video below illustrates the company's offering that covers a broad range of flow rates, orifice and connection sizes, materials of construction, and control options.

More detailed product and application information is available from product specialists. Share your application challenges and work together to develop the best solution.