New Advanced Butterfly Valve Technology for HVAC Applications

Posted on Mon,Nov 14, 2016 @ 09:00 AM
Butterfly valves are fundamental components in hydronic systems. Unfortunately, most butterfly valves are less than ideal – they leak, their running times are not optimized for HVAC applications, they’re heavy, it’s hard to access wiring, and they cannot be put into operation quickly.

The new Belimo technologically advanced butterfly valve is the exception. Belimo Americas releases a technologically advanced butterfly valve designed specifically for the Heating, Ventilation, and Air Conditioning industry. The newly designed butterfly valve and actuator assembly is the most intelligent, energy efficient, and reliable high flow solution in the HVAC market. With a focus on ease of installation, application flexibility, and longevity, this series sets new performance standards.AdvancedButterflyValve.jpg

  • Saves energy with up to 80% less power consumption than currently available solutions
  • Patent pending, self-adjusting end stop logic ensures zero leakage at 200 psi close-off.
  • Industry leading fail-safe function and universal power supply input 24-240 VAC / 24-125 VDC requires only one actuator type which eases planning and increases flexibility for all applications
  • Easy troubleshooting with its unique position indicator viewable from long distances and any angle
  • Simplified setup, diagnostics and superior application data accesswith BACnet and Near Field Communication built-in

“The Belimo advanced butterfly valve offering is truly innovative”, states Kurt Narus, Product Manager. “Our customers will now have a butterfly valve with a fail-safe option, universal power supply, and secure close-off for the life of the valve – all industry firsts!”

The resilient seated butterfly valves are designed to meet the needs of HVAC and commercial applications requiring zero leakage. The large Cv values provide an economical control valve solution for larger flow applications used in ANSI flanged piping systems. Typical applications include chiller and boiler isolation, primary bypass flow control, cooling tower isolation, large air handler coil control, and process control heat exchanger applications.


The most intelligent butterfly valve on the market, learn more online, download product flyer or butterfly valve product guide and price list.

Tags: Product Review, Belimo News

Cast Your 2016 ControlTrends Nomination

Posted on Wed,Nov 02, 2016 @ 01:15 PM

Control Trends has official opened the 2016 Control Trends nomination. Control Trends is an online CTA.jpgorganization that provides HVAC and Industrial Controls professionals a place to learn and share information about the rapidly changing world of the commercial and industrial controls. With product demonstrations and training videos along with news and special posts that affect the controls professional. Control Trends operates independently and are committed to providing HVAC professional, useful information.

Every year the following Control Trends Awards are granted:

  • Building Automation VAV Controller of the Year Manufacturer or Product
    Variable Air Volume Controller with or without direct coupled actuator
  • Building Automation Plant/Equipment Controller of the Year
    Building Automation General Purpose Programmable Controller
  • Energy Savings Solution Product of the Year
    Software or Hardware Solution
  • Peripheral Product of the Year
    Products such as Sensors, Transducers, Smart Relays, or innovative tools that save time.
  • Wireless Product/Solution of the Year
    Wireless Products/Solutions that Integrate BMS/BAS Systems
  • Lighting Integration Provider/Solution of the Year
    Seamlessly Integrates Lighting System to BMS/BAS Systems
  • 3rd Party Visualization Software of the Year
    Links BMS/BAS System's Information to Visualization Platform
  • Building Analytics Solution of the Year
    Open/Agnostic Solution that Focuses on Data Analytics and Building Optimization
  • Light Commercial Solution of the Year
    Web-enabled or Networkable
  • Innovative Product of the Year
    Game-changing Product or Solution
  • Building Automation Control System of the Year
    Vendor Provides End-to-End Hardware and Software Components
  • VFD Manufacturer/Product of the Year
  • Best Technical Support Person -- Large Manufacturer
    Company sales over $50 million
  • Best Technical Support Person -- Small Manufacturer
    Company Sales Under $50 Million
  • Best Technical Support Company -- Large Manufacturer
    Company sales over $50 million
  • Best Technical Support Company -- Small Manufacturer
  • PID Award
    Person of the Year: Professionalism, Integrity, and Dedication Award
  • ControlTrends Executive of the Year -- Small Manufacturer
  • ControlTrends Executive of the Year -- Large Manufacturer
  • ControlTrends Vendor of the Year -- Large Manufacturer
    Sales over $50 million
  • ControlTrends Vendor of Year -- Small Manufacturer
  • ControlTrends Systems Integrator of the Year
    Systems Integrators, you can nominate up to three. Please note last year’s winners AI and Hepta Systems are not eligible for this year’s awards.
  • ControlTrends Women of the Year
  • ControlTrends Most Impactful Video of the Year

Cast your nominations online now!

 

Tags: Product Review, Belimo News

How to Model Energy Savings with Pressure Independent Valves

Posted on Tue,Apr 12, 2016 @ 04:47 PM

The pressure independent control technology has matured over the years and is accepted as a proven application for optimizing hydronic system delta T, enhancing system performance and reducing energy cost. Pressure independent valves offer precise hydronic flow control resulting in improved system efficiency and control for heating and cooling applications. The primary purpose of pressure independent control valves in a HVAC system is to minimize flow through the coil in an air handler while maintaining process variable set point control (coil discharge air temperature). Hydronic system performance has varied from constant volume to variable volume with pressure independent flow control.

PIQCV_noreflect_nocable.pngInstalling pressure independent control valves instead of pressure dependent two-way control valves typically used in variable flow systems is the best of both worlds. The pressure independent valve combines the functionality of a control valve and a pressure regulating valve, creating ONE precise product which is unaffected by pressure variations in a system. The high rangeability provides enhanced control resulting in elevated delta T performance and reduced flow to serve system loads. This cost effective design provides a constant flow – at each degree of ball opening – giving unparalleled performance in your HVAC system.

Energy_Modeling.jpgCalculate the energy savings when using pressure independent valves with Belimo’s PIV Energy Modeling tool. The PIV Energy Modeling tool is a Mircrosoft Windows® based application tool offered by Belimo – free of charge. The user simply enters a minimum amount of variables and is able to obtain a quick comparison of energy usage between the two types of valves. Even though the software requires minimum user entries, the calculations are very complex. It uses a set of hourly calculations in the background to obtain the different building HVAC load with predefined building types along with the city weather data and climate zone. The calculations structure complies with ASHRAE 90.1-2010 Appendix G regarding requirements for simulation programs. The program even provides the calculation tables so that the user can use the modeling as part of an Exceptional Calculation Method.

The PIV Energy Modeling tool can be accessed online at www.belimo.com located in the top page navigation under: Sizing/Selection Tool.

Download the PIV Energy Modeling Tool and the Installation Guide

Tags: Product Review, Belimo News, Software Tools

NEW ANSI 250 Energy Valve and Electronic Pressure Independent Valve - An Advanced Performance Solution for High Pressure Applications

Posted on Tue,Feb 16, 2016 @ 09:05 AM

Belimo Americas announces the release of the new ANSI 250 pressure rating for 2 ½” to 6” flanged Energy Valve and ePIV assemblies. These assemblies utilize an electromagnetic flow meter in line with a control ANSI_250_straight_EV.jpgvalve to obtain close-off ratings from 135 – 310 psi depending on valve size and actuator force. Actuators respond to a modulating control signal and are available with non-spring return or electronic fail-safe functionality.

The Energy Valve and Electronic Pressure Independent Valve (EPIV) both provide true flow with the built-in electronic flow meter and dynamic balancing providing pressure independent operation by maintaining constant flow regardless of differential pressure fluctuations.

The Energy Valve also provides a solution to low Delta T syndrome with its Delta T Manager™.  Power Control is another feature of the Energy Valve, which allows setting the power output to a specific value in a linear response making coil control both pressure and temperature independent. Additionally, the Energy Valve is equipped with an Energy Meter and data logger that stores 13 months of data providing system transparency along with the ability to optimize performance over BACnet or standard analog control.

For further information, download the product flyers: Energy Valve, EPIV.

Tags: Product Review, Belimo News, Product Updates

Improving Chilled Beam Performance and Cost-Effectiveness

Posted on Tue,Jun 02, 2015 @ 10:00 AM

In recent years, sustainability and efficiency have made their way to the forefront of building design.  More so now than ever, owners and contractors are looking to take advantage of the most advanced climate control systems in an effort to lower energy costs, maximize space, and ensure the safe and comfortable use of their structure for many years to come.

The use of chilled beams, in particular, has become a highly popular method of achieving these goals. Originally built to take the place of passive radiant cooling ceiling systems, they provide designers and engineers with the ability to make the most out of their space by dramatically reducing bulky supply and return air ductwork to the minimum size required to meet your ventilation requirements. Heating and cooling loads are served with smaller water pipes and more efficient hydronic systems.

Chilled beams are an intelligent option for both new buildings and retrofits alike; and when used in conjunction with other state-of-the-art technologies like Belimo’s 6-way Characterized Control Valve (CCV), they help reduce life-cycle costs and improve climate-controlling capabilities in structures of nearly all shapes and sizes.

The Belimo 6-way CCV is designed specifically for chilled beams and radiant ceilings. It can perform change over and modulating control for a single coil in a 4-pipe system with functionality equivalent to that of up to four 2-way control valves. This represents significant savings in terms of space, material, and installation time.

Belimo CCV’s innovative ball design features hydraulically decoupled heating and cooling circuits, which means that each sequence is controlled individually by the rotary movement of a single actuator. As a result, one valve can support a coil with two different Cv values.

In addition to substantially reducing wiring requirements, the use of only one actuator6-way characterized control valve simplifies building management system controls and enhances the ability of operators to manage indoor conditions. The 6-way valve is also highly compact and offers a 0% leakage in the closed position, helping prevent energy losses and reducing operating costs.

Using a single 6-way control valve to support chilled beam applications results in reduced installation requirements and minimal labor costs, and in the building sector where lean construction is becoming increasingly important, this is highly advantageous.

Through all of its innovative features, the Belimo 6-way control valve can serve as a highly economical addition to chilled beam applications in a wide range of building designs, and as more and more owners and contractors look for new and effective ways to cut costs and improve the environmental-friendliness of their structure, technologies like it will become increasingly prominent.

Download 6-way Product Brochure or go online to learn more.

 

 

 

Tags: Product Review, Green Building Technology, Technical Tips

2014 ControlTrends Nomination Ballot is Now Live

Posted on Tue,Sep 23, 2014 @ 10:00 AM

ControlTrends.org is an online provides HVAC and Industrial Controls professionals a place to learn and share information about the rapidly changing world of commercial and industrialControlTrends Award controls. They have included product demonstrations and training videos along with technical and news posts that effect the controls professional. They are committed to providing HVAC professional useful information. They operate as independently and the views expressed on ControlTrends.org are not necessarily the views and opinions of their sponsors.

Every year they grant the following ControlTrends Awards:

  • Building Automation VAV Controller of the Year Manufacturer or Product
  • Building Automation Plant/Equipment Controller of the Year
  • Energy Savings Solution Product of the Year
  • Peripheral Product of the Year.
  • Wireless Product/Solution of the Year
  • Lighting Integration Provider/Solution of the Year
  • 3rd Party Visualization Software of the Year
  • Building Analytics Software of the Year
  • Programming Software Tool of the Year
  • Residential Thermostat of the Year
  • Commercial Thermostat of the Year Need Product names
  • Innovative Product of the Year
  • Building Automation Control System of the Year
  • Building Integration & Automation Software of the Year.
  • VFD Manufacturer/Product of the Year
  • Best Technical Support Person -- Large Manufacturer
  • Best Technical Support Person -- Small Manufacturer
  • Best Technical Support Company -- Large Manufacturer
  • Best Technical Support Company -- Small Manufacturer
  • The PID AWard (ControlTrends Person of the Year based on professionalism, integrity, and dedication) 

Place your nominations online now!

 

 

Tags: Product Review

Video on Advanced Valve Control Strategies

Posted on Mon,Jun 09, 2014 @ 10:00 AM

In this 30 minute video, you will learn the ways that the Belimo Energy Valve's features Flow Control and Power Control can produce more stable control.  Discover the hydronic advantages of Flow Control, which makes the valve pressure independent and the system dynamically balanced.  Then learn about Power Control, which allows the valve and the coil to function as a single device which is pressure and temperature independent.

Tags: Product Review, Green Building Technology, Belimo News

New Compact Performance Solution that Manages Flow

Posted on Tue,Jan 21, 2014 @ 10:00 AM

The new ePIV is a 2-way pressure independent characterized control valve  describe the image
with an integrated electronic flow meter and a powerful control algorithm. The ePIV maintains flow set point regardless of differential pressure variations. It achieves this with its powerful algorithm that modulates the valve based on its measured True Flow. The ePIV offers many features and benefits:

  • Compensates for pressure variations and perform dynamic balancing to maintain system performance at varying loads.
  • Valves are selected based on coil flow rate. No Cv calculations are needed.
  • Maintains pressure independent operation down to 1 psid.
  • Unlike mechanical pressure independent valves that provide an approximated/calculated flow feedback, the built-in electronic flow meter provides True Flow as a feedback to BAS systems.
  • Built-in CCV technology with high close-off pressure and zero leakage eliminates “ghost energy” losses in the system.
  • ZTH US handheld tool provides fast and easy access to settings and values.
“The ePIV is unlike any other flow control device on the market today”, states Ayo Williams, Product Manager at Belimo. “The ePIV not only offers reliable, independent control—it offers several advantages to those who design, install, and rely on flow control equipment.”

Learn more at www.belimo.us.

Tags: Product Review, Pressure Independent Valves, Belimo News

ePIV Now Available in Sizes ½” to 6”

Posted on Mon,Jan 20, 2014 @ 10:00 AM

Belimo releases the Electronic Pressure Independent Valve (ePIV) in sizes of ½” to 6”; a 2-way pressure independent characterized control valve with an integrated electronic flow meter and a powerful control algorithm. The ePIV directly measures flow by combining aPressure Independent Valve magnetic flow meter and a 2-way control valve. The actuator has a powerful algorithm that modulates the control valve to maintain the exact flow based on the control signal set by the DDC Controller. The flow reading is reported back to the controller using a standard signal, and this value can be used by the Building Automation System to perform advanced control and energy strategies.

The advantabes of the ePIV:

  • Compensates for pressure variations and perform dynamic balancing to maintain system performance at varying loads.
  • Valves are selected based on coil flow rate. No Cv calculations are needed.
  • Maintains pressure independent operation down to 1 psid.
  • Unlike mechanical pressure independent valves that provide an approximated/calculated fl ow feedback, the built-in electronic flow meter provides True Flow as a feedback to BAS systems.
  • Built-in CCV technology with high close-off pressure and zero leakage eliminates “ghost energy” losses in the system.
  • ZTH US handheld tool provides fast and easy access to settings and values.

Learn more at www.belimo.us.

Tags: Product Review, Pressure Independent Valves, Belimo News, Product Updates

The Belimo Energy Valve™ Cures Medical University’s Low Delta-T

Posted on Mon,Nov 04, 2013 @ 10:00 AM

The University of Miami medical campus saves thousands of dollars and increased plant capacity with the Belimo Energy Valve retrofit.

The University of Miami’s Leonard M. Miller School of Medicine says it prides itself on bringing medical research from “bench to bedside,” meaning doctors are providing patients in Southern Florida with the latest cutting-edge developments in medical care. On its sprawling campus and in its state-of-the-art buildings, doctors and researchers are unlocking the secrets to not only infectious diseases, but the future of stem cells and genetics.

What many people may not know is the preventative care that is going on behind the scenes when it comes to the university’s mechanical systems. At the heart of the university is a 47,000-sq-ft chiller plant with 12,000 tons of installed capacity, providing the much-needed cooling and chilled water for the campus’s hospitals and research buildings. While the chiller plant is still fairly new, having just opened in 2011, some buildings on campus were not operating as efficiently as they could, wasting thousands of gallons of chilled water. However, the problem was not with the chiller plant, but the cooling coils in several of the campus facilities.

The solution to the problem came in the form of the latest research and development from Belimo — The Belimo Energy Valve.Energy Valve Installation at University of Miami

The diagnosis – Low Delta-T
It‘s a common mechanical illness - Low Delta-T. It occurs when air-handling coils are oversized, demand too much water, or foul and degrade with age. Poor system balance and improperly installed and controlled air handlers can also contribute to low Delta-T.  
When this happens, air-handler efficiency and heat transfer plummets. In turn, chillers and pumps work overtime in order to maintain a given temperature set point. Return water temperature to the chiller is lower than the intended design forcing more water to be pumped through the system. As more and more gallons of water move through the system, not only is efficiency in question, but utility costs can go through the roof.
This was the diagnosis for some of the buildings on the University of Miami Medical campus. Even with a new chiller plant, and a mix of new and older facilities, low Delta-T was negatively impacting the efficiency on campus — that is until Kerney and Associates of Dania Beach, FL, stepped in.

The specialty piping and energy services company has had the University of Miami Medical campus as a client for several years, so when they learned about the Belimo Energy Valve, they knew it was something they had to share with the university, especially since Kerney and Associates specializes in retrofit opportunities that will provide a maximum return on investment for clients.

“We do a lot of business with them,” said Ron Bogue, Assistant Vice President for facilities and services at the UM Medical campus. “They came to us and introduced us to the Belimo Energy Valve line.”

The Energy Valve is a pressure independent valve optimizes and documents water coil performance. The valve includes an electromagnetic flow sensor and temperature sensors that monitor supply and return water. Differential temperature is monitored to make sure that the Delta-T across the valve is performing at the desired set point. If Delta-T drops, the valve modulates the flow of water at the coil, which improves system efficiency.
To make sure that the valve and the coils are working as specified, the valve also has BACnet capabilities. Each valve has a static IP address, allowing technicians on campus to
log on to the Internet, via a PC or tablet device, and check Delta-T readings and flow efficiency at the valve in real time.

“It is a very informative diagnostic tool,” said Bogue. “I’m a facilities guy who is definitely into preventative maintenance. We are always looking for ways to improve efficiency and preventative services on campus.”

With the valves BACnet capability, he says that much of the guesswork is taken out of the diagnostic component. Any efficiency issues with the valves, the coils, or with low Delta-T can be quickly identified and fixed. Technicians can even change the flow of the valve or modify parameters remotely from their office or in the field.Delta T Webview

“You can go online and make sure that the coil was designed to do what it was supposed to do,” said Bogue. But before Bogue was completely sold on the Energy Valve, he took it for a test run. The results were even bigger than expected.

Immediate Results
To prove that the Energy Valve could do what it was designed to do, Scott Czubkowski, PE, Director of Engineering at Kerney Associates, installed the valve at the university’s Clinical Research Building. The building houses over 300,000 sq ft of research space, including research in pediatrics and pharmacology. It is also one of the newest buildings on campus, opening in late 2004. Even with the building less than eight years old, it was still lacking in efficiency.

On average, the building was seeing a 7-degree Delta-T and inefficient energy transfer.    

“Some of the air handlers were three or four years old and were not performing optimally,” said Czubkowski.

An Energy Valve was installed on a 175-ton heat exchanger that was transferring energy at a 3-degree Delta-T. The results were verified through the valve’s analysis tool, which stores up to 13 months of system data in the actuator. Data includes absolute flow, absolute power, and temperature. All of these components can then be compared and analyzed to see improvements in the system. Czubkowski found that when the Belimo Energy Valve was installed the system reacted almost immediately.

At the initial start-up of the valve, Czubkowsi was able to see that heat exchanger’s Delta-T was at 3.5 with a gallon per minute (GPM) reading of 520. In less than an hour, the Energy Valve Delta-T Manager took over control of the coil and the Delta-T rose to 6.5 and the flow was reduced to 300, see Fiqure 1. The flow rate continued to drop as the day went on.
As heat exchanger performance increased, the entire building saw an improvement in Delta-T.
“The University started seeing a 10-degree Delta-T,“ said Czubkowski. “It went from a 7-degree to a 10-degree Delta-T within a day.“

That wasn’t all. Kerney and Associates found that within one hour, the system went from using 600 gallons of water to 100 gallons per minute. With those kinds of immediate results, Czubkowsi said that Bogue was able to validate that the technology worked.

If the Belimo Energy Valve could have that kind of result in a newer campus building, what kind of impact could it have on an older building? The university decided to purchase more of the Energy Valves and find out.

Typical Medical Center Savings EstimateOlder Building, Big Results
After the success of the Clinical Research Building, Czubkowski and his team tackled the university’s 450,000 sq ft Rosenstiel Medical Science Building. The 35-year-old building houses the internal medicine, hematology, and oncology departments. 

Czubkowski illustrates in Figure 2 the potential savings a typical medical center could have.
Eleven major air-handling units at 30,000 cfm each serve the building. Some of the air-handling equipment is almost as old as the building itself, and the air-handling coils at the AHUs had degraded over time. Delta-T was hovering around 7 or 8, which according to Bogue, meant the system was “wasting thousands and thousands of dollars in energy.”

With the Belimo Energy Valve installed, the Rosenstiel Building started to see a Delta-T of 10.5 to 11.

According to preliminary calculations, Kerney and Associates believes that the University of Miami will see a three- to four-year payback on the valves it purchased for the Rosenstiel Building. Each of the 11 valves installed should create a $6,000 utility savings, bringing the total annual savings cost to an estimated of over $60,000.
And Bogue and his mechanical team can make sure that facilities such as the Rosenstiel Building continue to save on utility costs and keep adequate Delta-T readings. As part of its preventative maintenance initiative, Bogue frequently checks the valve performance in the buildings by using the BACnet capabilities.

“Each valve has an independent IP address,” he explained. “I can go in and look up the numbers.

It comes up on the screen and we can see the gallons per minute flowing through the valve.”
If Delta-T readings go under an intended set point, an alarm will go off to notify mechanical staff that there is a problem. Bogue said that the university is no longer dealing with a “blind side” when it comes to system efficiency and the amount of water that is being wasted
on campus.

These results have prompted the University of Miami to continue installing the Belimo Energy Valve. Work is scheduled to install the valves at two more campus buildings. First on the list is the Batchelor Children’s Research Institute. The building will install four Energy Valves to control a 1,000-ton chiller load.

The newest building, the Biological Building, will also adopt the Belimo Energy Valve technology. Not only is it the newest building on campus, it also boasts the largest air-handling units on campus. When the air handlers are retrofitted, the university will be able to make sure their newest building is operating as intended and not wasting chiller water.
“Belimo has really stepped up the game,” said Bogue. “This is the leading edge of the future from a diagnostics standpoint.”

Download Case Study

Tags: Product Review, Pressure Independent Valves, Green Building Technology