Showing posts with label corrosion resistant. Show all posts
Showing posts with label corrosion resistant. Show all posts

Monday, September 12, 2016

New Anti-microbial Cooling Tower From Delta Cooling Towers

Delta Cooling Towers, globally recognized leader in the manufacture of corrosion resistant cooling towers, has added a new dimension to their product line. Cooling towers for industrial and commercial applications are now available with construction features and materials that significantly inhibit the growth of microorganisms in the tower fill and shell.

Microbial growth has long been a concern of cooling tower operators. The environment within a tower, continuously wet and warm, provides ample opportunity for microbial propagation. The new anti-microbial cooling towers make use of HDPE resin that is fully compounded (not just on surface) with an anti-microbial agent to provide the corrosion protection for which Delta is known, along with resistance to biofilm growth. The fill in the tower also provides the same level of resistance to microorganism growth. The corrosion resistant materials used in the construction of Delta towers allows the use of more aggressive chemical treatment than would be recommended with metal cooling towers.

The new Delta Cooling Towers have some distinct advantages for health and safety, as well as extended operating lifetime. Reach out to a product application specialist. Get all the details on the new anti-microbial cooling towers and share your HVAC and industrial cooling challenges to get solutions.



Wednesday, September 7, 2016

Severe Service Valves - Application Targeted

severe service flanged plug valve lined Fluoroseal
Sever Service Plug Valve
Fluoroseal
Industrial process control applications can be associated with some very stringent and challenging performance requirements for the physical equipment and components that are part of the process chain. In fluid based operations, the control and shutoff valves can be a significant impact point of extreme fluid conditions, requiring careful design and selection consideration to assure proper performance and safety levels are predictably maintained.

Industrial valves that are intended for application at the extremes are generally referred to as severe service valves. While there are plenty of published and accepted standards for industrial valves, one does not exist to precisely define a severe service valve. There is, however, some movement toward the development of severe service standards in some industry segments.

So, how do you know when to focus valve selection activities on severe service valves, as opposed to general purpose valves? There are a number of basic criteria that might point you in that direction:
  • Very extreme media or environmental temperature
  • High pressure drop operation that may cause cavitation
  • Rapid and extreme changes to inlet pressure
  • Certain types or amounts of solids contained in the fluid
  • High number of mechanical operations
  • Thermal cycling
Certainly, any of these criteria might be found in an application serviceable by a general purpose valve, but their presence should be an indicator that a closer assessment of the fluid conditions and commensurate valve requirements is in order. The key element for a process stakeholder is to recognize when conditions are in evidence that might overrun the capabilities of a general purpose valve, leading to premature failure in control performance or catastrophic failure that produces an unsafe condition. Once the possibility of a severe service condition is identified, a careful analysis of the possible operating conditions will reveal the performance requirements for the valve.

There are numerous manufacturers of severe service valves, each seeming to concentrate on a particular niche. Fluoroseal, a globally recognized manufacturer of lined valves for corrosive applications, has their own entry in the severe service arena that is based upon one of their popular general purpose valves. The focus for the FE Series valve design appears to be thermal cycling, excessive number of mechanical operations, and fugitive emissions.

I have included a technical bulletin that describes and nicely illustrates (with a cutaway view) the various features incorporated in the valve design.

You can always get more information, or discuss your special requirements, with a product application specialist. They have access to technical resources that can help with selecting the right valve configuration to meet your severe service applications.

Tuesday, August 2, 2016

Corrosion Resistant Cooling Towers Allow Aggressive Water Treatment

cooling tower corrosion resistant plastic construction
Corrosion resistant cooling tower
Courtesy Delta Cooling Towers
Unless you are located in the northern or southern polar regions, churning away on the roof of the building in which you may work, or mounted on a pad adjacent to it, is likely an important unit of equipment. It is essential to climate control in the building, and possibly an integral heat rejection component for an industrial process. Yes, I am talking about cooling towers. While hardly glamorous, without their successful operation, much of your operation will grind to a halt. 

There is substantial cost involved in the operation of a cooling tower, including energy, water, treatment chemicals, and more. Corrosion and the accumulation of fouling material can measurably reduce overall cooling efficiency. Even modest accumulation can slash energy efficiency by 5%, increasing operating costs in a marked way.

Keeping a cooling tower operating near its design capacity requires a commitment to a regular maintenance and inspection schedule. When deficiencies are found, they should be corrected within a reasonably short time frame. Water treatment, to improve performance or reduce maintenance burden, can sometimes be overly aggressive and impart some negative side effects to the equipment. Plastic cooling towers provide a high level of resistance to even the most aggressive water treatment chemicals. Cooling towers fabricated from plastics can carry warranties extending to 20 years.

Water cooling towers are an important operational component of your infrastructure, as well as a significant continuing cost center. They should be cared for as an important appliance. Avoid choosing a "Run to failure" maintenance program.

There is much to consider when adding or replacing a cooling tower. Share your project requirements and challenges with an application specialist. Combining your process and operational expertise with their product application knowledge will produce an effective solution.

Tuesday, January 19, 2016

Delta Cooling Towers - News Update

AHR Expo announcement for Delta Cooling Towers
Delta Cooling Towers
Exhibiting at AHR Expo 2016
Delta Cooling Towers manufactures corrosion resistant cooling towers for commercial and industrial applications where these product features are important:
  • Seamless double wall engineered plastic (HDPE) shell
  • Corrosion proof construction
  • Direct drive fan system
  • Totally enclosed VFD rated motors
  • Factory assembled for simple installation
  • 20 Year shell warranty
  • PVC water distribution system with non-clog large orifice removable nozzles
  • High efficiency PVC fill
  • Made in the USA
Mountain States Engineering and Controls (MSEC) represents the manufacturer in Colorado, Wyoming, and Montana You can visit the Delta Cooling Towers booth at AHR Expo January 25 - 27 in Orlando, Florida. 

Corrosion resistant cooling tower for HVAC or industrial cooling
HDPE Cooling Tower
Courtesy Delta Cooling Towers

Tuesday, December 29, 2015

Pneumatic Actuator For Corrosive Environments

Corrosion Resistant industrial valve pneumatic Actuator disassembled
Commando XL Corrosion Resistant
Pneumatic Valve Actuator
Courtesy Hytork - Emerson
Industrial process control operations sometimes call for equipment to be placed in physical locations or environments that are not conducive to a long and productive component lifespan. Extremes of temperature, humidity, and vibration can have substantial effect on equipment performance and longevity. Deleterious impact can also arise from elements of the process itself, in the form of corrosive liquid or vapor prevalent in the processing area. While most industrial equipment is provided with some level of protection, there are instances where standard coatings and protective materials may not provide adequate resistance to the deteriorating impact of their installation environment.

Valves of many types are used throughout industrial processes to provide control of fluid flow, with quarter turn movement being one of the more prevalent.
Pneumatically powered quarter turn valves have an actuator option that provides a high level of corrosion resistance, along with the field proven performance of a recognized leading product. 
Hytork™, an Emerson brand, offers their XL line of actuators with a special treatment to withstand aggressively corrosive environments. The corrosion resistant version has been labelled "XL Commando" and, in the company's own words, has...
A durable Fluoropolymer impregnation (using CORROGARD-CG941) of the actuator body parts (inside and out) for maximum corrosion resistance. This durable impregnation can best be achieved in cast aluminum parts (all XL COMMANDO body parts are cast aluminum). As the aluminum metal grains are expanded under heat the CORROGARD-CG941 is applied, entering the grain structure and, upon cooling, is locked at the surface, integral with the grain structure. Extruded surfaces can only be coated and are more susceptible to scratches and other mechanical deterioration.
You can review the performance range, sizes, and other features of these pneumatic valve actuators through a review of the document included below. Bring your process challenges to a valve application specialist and combine your process knowledge with their product application expertise to achieve a solid practical solution.