Classic Controls Becomes Associate Member of CARILEC

Caribbean Electric Utility Services Corporation
Classic Controls is very please to announce the company has been accepted as an Associate Member of CARILEC (Caribbean Electric Utility Services Corporation).

CARILEC is an association of electric services, dealers, manufactures and other stakeholders operating in the electricity industry in the Caribbean region, Central and South Americas and Globally.

CARILEC was established in 1989 with an original nine members as part of an electric utilities modernization project funded by USAID and implemented by NRECA under a five-year "Co-operative Agreement." Currently, CARILEC comprises a total of one hundred and six (106) members. This includes thirty five (35) Full Members that are electric utilities and sixty six (66) Associate Members that are companies involved in some aspect of servicing the electric utility business and four (5) Affiliate Members. The vision of CARILEC is "To be the Premier Association of Electric Utilities and Industry partners; facilitating the development of world class electric energy services for all peoples of the Caribbean."

Classic Controls Classic Controls is a total solutions, single-source provider of industrial process instruments for the entire Caribbean. Along with representing “best-in-class” manufacturers, Classic Control's employees are people driven by total customer satisfaction, with a field salesforce who are technically strong, conscientious, and who can properly apply, train, and support the products they apply.


Quarter Turn vs. Linear Industrial Valves

Linear valve
Linear control valve (Masoneilan)
Different types of valves are designed and applied for different roles in the process control. Linear valves and quarter-turn valves are two different types of valves utilized throughout industry to regulate and control fluid flow. Their design and construction reflect the intent of the valves application, with each being suited for a different class of use.

All valves operate by providing control of the position of an internal structure that impedes fluid passage to some degree. Generally, fluid flow at the valve can be characterized as one of three conditions, unrestricted (valve fully open), stopped (valve fully closed), and throttled (valve partially open). Process operational requirements will dictate whether just two (fully open and fully closed) or all three of those conditions will be needed. Many aspects of the fluid, the process, and the surrounding environment come into play when making an appropriate valve selection. Not always an easy task.
solenoid valve
Solenoid valves are
a type of linear valve.
(ASCO)

Linear valves are generally characterized by their straight line motion that is used to position the valve plug, disc, diaphragm or other flow controlling element. The shape, size, and arrangement of the linear valve trim is generally intended to empower the operator with a range of flow through the valve. Through its positioning, the linear valve is able to regulate fluid flow at a slower, but more accurate rate. The valves can move a disk or a plug into an orifice, or push a flexible material, such as a diaphragm, into the flow passage. Gate valves and globe valves are common examples of linear motion valves. A solenoid valve also acts as a specialized type of linear valve. Linear valves are best applied as flow controllers, and are often suited for frequent operation and repositioning.

Quarter turn valve
Ball valves are examples
of quarter turn valves.
(QTR)
Quarter turn valves traverse from fully open to fully closed by a 90 degree rotation of a shaft connected to the controlling element. Their comparatively simple operation allows for a design that is rugged and compact. One distinction of the quarter turn valves is their ability to quickly reposition from open to closed positions. Torque requirements to operate the valves are generally low to moderate. Ball and butterfly valves are examples of quarter turn valves.

Depending on the specific scenario, linear valves and quarter-turn valves are optimal choices for particular process environments. The accuracy of the linear valve and its ability to move in a linear fashion as opposed to a quarter-turn comes coupled with easy maintenance and decreased likelihood of cavitation. Both valve types enjoy widespread use and should generally not be viewed as competing designs for the same application. Each has a range of applications where it excels.

Contact Classic Controls for any industrial valve requirement by visiting https://classiccontrols.com or by calling 863-644-3642.

Happy 4th of July from Classic Controls

"America is much more than a geographical fact. It is a political and moral fact — the first community in which men set out in principle to institutionalize freedom, responsible government, and human equality."

Adlai Stevenson


Drying Compressed Air In Hazardous Atmospheres

Compressed Air DryerIn many industries, the atmosphere, though safe to breath, may be unsafe for an electrical spark. These areas often have pneumatically operated equipment for safety. And that equipment needs a source of clean dry air or as it is called in the industry, Instrument Grade Air. Plants typically have a centralized instrument grade air line that delivers air to the instruments that need it. However, oftentimes the instrument grade air is of inferior quality and contaminated with water. This air will benefit from a point of use drying system that guarantees instrument grade air. Traditional drying systems using PSA (Pressure Swing Adsorption) or refrigerant require expensive modifications to operate within hazardous areas. Air dryers made from hollow fiber membranes can dry compressed air without the use of electricity and are therefore safe for hazardous environments.

Hazardous locations have or could potentially have high concentrations of flammable gases, vapors, combustible dusts or ignitable fibers and flyings. Refineries, chemical processing plants, mines and grain mills are examples of industries with hazardous atmospheres. Even a small spark can lead to a horrific explosion dangerous to equipment and workers in the area.

Read the rest of the Parker Balston white paper in the embedded document below, or download your PDF version of "Drying Compressed Air In Hazardous Atmospheres" here.

For more information, visit https://classiccontrols.com or call 863-644-3642.


University Campuses Greatly Reduce Energy Costs Retrofitting with Clamp-on Thermal Energy Meters

Clamp-on Thermal Energy Meters
Flexim Clamp-on Thermal Meter
The cooling and heating of a university campus is one of the primary areas where better energy management, including improved efficiency and energy reduction, brings some of the highest returns.

Every university to some extent is now engaged in this process, and one of the first things that has to be addressed is the metering of distributed thermal energy. To effectively begin energy reduction initiatives, accurate and reliable thermal energy metering has to be in place.

Today, there is high priority for understanding that we need to be better stewards of energy consumption. Poor energy consumption harms the environment and creates much higher operating costs. Universities have become very involved in the move toward greener energy. Many universities began metering long ago while some are just beginning. Most are in the middle of the process.

Installation of clamp-on thermal meter
Installation of clamp-on thermal meter (click for larger view).
Installation in under 4 hrs. (steps from image above):
  • Step 1: Cut insulation where transducers and RTD will be located.
  • Step 2: Install stainless bands around pipe under insulation.
  • Step 3: Install transducers and RTD.
  • Step 4: Cover transducers and RTD with insulation and tape.
There are many different types of meters, and often, many of these choices turn out to be unreliable. In order to achieve real accountability for energy usage at campus buildings, energy managers at leading universities are applying a “utility model.” In the utility model, building managers responsible for campus buildings are billed at utility grade costs for the thermal energy consumed. This creates an environment where focus falls to thermal energy conservation. It’s also vital that inefficiencies are identified and corrected through metering.

Many universities have gone through an evolution of trying to meter thermal energy consumption throughout their campus. The success of these ventures can be elusive when the meter chosen for the job doesn’t live up to expectations. Examples include insertion meters that over time will foul and meters that cannot respond to low velocities that are prevalent during off-peak metering.

On proven alternative is FLEXIM’s Thermal Energy / BTU Flow Meter. The technology, based upon FLEXIM's ultrasonic clamp-on meters, do not require shutdown and are very cost effective to install.

Clamp-on ultrasonic meters have been doing the job of BTU-metering for decades and the Flexim thermal energy meters are leading the effort towards more energy efficient buildings and facilities.

More than 150 colleges and universities throughout the country are using the FLEXIM product as their preferred thermal energy meter and attest to FLEXIM’s performance, reliability and support.

For more information on Flexim thermal energy products, contact Classic Controls by visiting https://classiccontrols.com or by calling 863-644-3642.

Classic Controls Coverage Area and Territory

Classic Controls is a total solutions, single-source provider of industrial process instruments serving Florida, South Georgia, Caribbean North, Caribbean South, Puerto Rico, Trinidad & Tobago, Guyana and Suriname.

Listing by country or island:

Anguilla, Antigua & Barbuda, Aruba, Bahamas, Barbados, Bermuda, Bonaire, British Virgin Islands, Cayman Islands, Curaçao, Dominica, Dominican Republic, Grenada, Guadeloupe, Guyana, Haiti, Jamaica, Martinique, Montserrat, Puerto Rico, Saba, St. Barthélemy, St. Eustatius, St. Kitts & Nevis, St. Lucia, St. Maarten, St. Martin, St. Vincent & the Grenadines, Suriname, Trinidad & Tobago, Turks & Caicos Islands, US Virgin Islands.


Setting Limit Switches on AUMA SA Multi-Turn Actuators and SQ Part-Turn Actuators

AUMA SA Multi-Turn Actuator
AUMA SA Multi-Turn Actuator
Type SA multi-turn actuators and SQ part-turn actuators are the core products of the AUMA product portfolio.

AUMA SA electric multi-turn actuators are used for the automation of gate valves or globe valves.

AUMA SQ electric part-turn actuators are used where an automatic, electrically operated movement at a swing angle of less than 360 ° has to be implemented as it is the case for valves like butterfly and ball valves.

Below is a video that demonstrates how to set the limit switches for both SA and SQ.

This video is intended as a supplement to the operating instruction and/or manuals available from your local AUMA Representative.