Wednesday, January 28, 2015

CTi Controltech - Williams and Davis Boilers Announcement



Williams & Davis Boilers of Hutchins, Texas announced today the engagement of CTi Controltech of San Ramon, CA, as the exclusive representative for Williams & Davis Boilers in Northern California and Northwestern Nevada.

CTi Controltech will provide sales, service, and support for Williams & Davis steam boilers, hot water boilers, electric boilers, feed water systems, deaerators, blowdown separators, and economizers. According to Jennifer Carradine, Manager at Williams and Davis, "CTi was selected because of their professionalism, knowledge, years of experience and courtesy to their customers. These are attributes and values we at Williams and Davis hold dear." Carradine later added, "We are confident that CTi will provide W&D customers and partners with the same high level of service and support they have grown to expect."

The Williams and Davis boiler product line adds to the already strong combustion equipment  and boiler offering at CTi. "WIlliams and Davis Boilers is a great addition to the CTi product line" said George Constas, President of CTi Controltech. "They are known for their innovation, quality and customer service. We see it as a perfect fit."

Wednesday, January 14, 2015

A Look Inside the Valtek Mark One Control Valve

This video provides a look inside the Valtek Mark One Control Valve and highlights its major components and unique design.

When reviewing industrial control valves, the Valtek Mark One globe control valve offers stands out because of it's excellent performance controlling liquids and gases, while at the same time allowing fast, easy and inexpensive maintenance.

The unique spring-cylinder actuated Mark One valve provides stiffness which contributes to the valve's high positioning accuracy, controlled high speed, repeatability, and response.


Sunday, January 4, 2015

Electrically Actuated Control Valves for Data Center HVAC Chillers

Data Center HVAC Electric Actuator
3-way chilled water valve
with electric actuator
for data center.
A data center chiller is a cooling system used to remove the heat generated by computer hardware and storage devices, and transfers that heat to another place where it can be used for some other process. Chillers are used in the data centers heating, ventilating and air-conditioning (HVAC) systems. Large scale HVAC chillers are used to provide accurate and reliable cooling. These chillers work around the clock to keep ambient temperatures optimized for data center operation. Because of the considerable heat generated by so many servers operating in such close proximity to one another, accurate and reliable temperature and humidity control is critical. If there is a failure, building temperatures would rise quickly and possibly ruin equipment and lose data.

A main component of the cooling system is the chilled water 3-way control valve used to throttle the chilled water to the building’s heat exchangers. It is essential that these control valves control accurately and perform reliably. Also, and in the event of a power failure, they must be programmable to move to a predetermined valve position.

I many data center HVAC applications, electric actuators are the preferred means to actuate the control valves. Their reliability, tightness of control, and failure-mode programmability are key reasons why chiller OEMs and data center building engineers choose electric actuators.