Sunday, July 22, 2018

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.


Friday, July 13, 2018

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.

Tuesday, July 3, 2018

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