How Do PIVs Simplify Balancing and Save Energy

    Posted on Tue,Jun 22, 2021 @ 12:42 PM

    Pressure independent control valves (PIV) stabilize variable flow hydronic systems for a lifetime of efficiency and worry-free dynamic balancing. PIVs directly control the water flow required by the coil or a branch and are not affected by pressure fluctuations in the system. The valves are selected based on the flow requirements of the coil or branch, and no Cv calculations are needed. By precisely controlling the flow, the pressure independent valves eliminate the need for balancing valves, thus reducing installation costs. The most significant benefit comes in energy savings by eliminating overflow through the coil or branch. Overflow wastes pumping energy and is the leading cause of low Delta T syndrome in chilled water systems. With Belimo's pressure independent valves, every system performs to its full potential – saving time, money, and other precious resources.

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    Tags: Pressure Independent Valves

    ASHRAE Global Headquarters HVAC Design to Provide Comfort, Transparency, and Energy Efficiency

    Posted on Fri,May 28, 2021 @ 10:24 AM

    ASHRAE’s newly renovated global headquarters in Peachtree Corners, Ga., will showcase the latest HVAC equipment and technology offered by Belimo. The building includes design and renovation updates to achieve a net-zero energy-efficient workplace environment. 

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    Tags: Pressure Independent Valves, Green Building Technology, Featured Case Studies

    Integration into Construction Technology Software

    Posted on Fri,May 14, 2021 @ 02:13 PM
    Belimo is excited to announce a partnership with Bidtracer. Bidtracer is a sales, operations, and channel management tool for product manufacturers. Belimo’s entire product range is now accessible on Bidtracer, providing us exposure to thousands of users, making it easier to select and attain specification data, technical datasheets, and add our products to schedules. The tool further enables customers to create full Belimo product submittals right from the estimates, saving them valuable time and process steps.
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    Tags: Belimo News

    Get Ready, Something Big is Coming Soon

    Posted on Fri,May 07, 2021 @ 10:55 AM
    Growing energy demand confronts all of us with enormous challenges. Energy consumption through heating, ventilation and air conditioning is a significant portion of energy usage globally. The U.S. Small Business Administration notes that HVAC equipment accounts for 40 percent of energy usage in commercial buildings. Both new and existing buildings can make a significant contribution to a more sustainable future. 
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    Tags: Belimo News

    HVAC Retrofit Increases Efficiency

    Posted on Tue,Apr 27, 2021 @ 08:45 AM

    Those seeking comfort will find it at Assisi Heights in Rochester, Minnesota. For many years, that wasn’t the case. The Sisters of St. Francis of Rochester and others who lived, worked, and taught at the historical convent, did so without air conditioning and a very outdated steam heating system. Many of the pneumatic actuators throughout the steam system were in disrepair.

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    Tags: Featured Case Studies

    Focus on Indoor Air Quality

    Posted on Tue,Mar 30, 2021 @ 02:00 PM

    Indoor air quality (IAQ) and its effect on occupant well-being and comfort are essential. Many issues such as sick building syndrome, indoor air quality thermal comfort, visual comfort, and acoustic comfort are a part of the indoor environment. Good indoor air quality requires attention to the building's HVAC system, measure and monitoring, healthy indoor air, air filtration, and pollutant source management. Some good practices in these areas have also been highlighted.

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    Tags: Technical Tips, Sensors

    What is CV, and How Do I Calculate It?

    Posted on Tue,Mar 23, 2021 @ 01:04 PM
    Valve Flow Coefficient (Cv) is the flow capability of a control valve at fully open conditions relative to the pressure drop across the valve. It is defined as the volume of water (GPM in the US) at 60°F that will flow through a fully open valve with a pressure differential of 1 psi across the valve. It is useful to know how to calculate Cv because it is the standardized valve sizing and selection method for control valves used throughout the HVAC industry.
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    Tags: Online Learning Resources & Tools, Technical Tips

    What is an HVAC Zoning System?

    Posted on Thu,Mar 11, 2021 @ 02:38 PM
    Many commercial facilities require different levels of heating and cooling in various areas of a building. A zoning system is appropriate for facilities where areas of the building are divided into heating and cooling zones based on specific needs. Hotels, hospitals, and apartments typically have different zones.
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    Tags: Actuators

    How Control Valves and Hydronic Systems Interact

    Posted on Tue,Feb 23, 2021 @ 09:00 AM

    Motorized valves control and adjust water flow in a hydronic heating and cooling system. The flow through pressure dependent valves varies as the pressure (∆P) across the valve orifice changes. Typical pressure dependent valves include globe valveszone valvescharacterized control valvesstandard ball valves, and butterfly valves. When pressure varies in a system, the flow will have an identical response. As the pressure drop decreases across a pressure dependent control valve, flow decreases, starving the coil or branch. When pressure drop increases across a pressure dependent control valve, flow increases, flooding the coil or branch. Overflowing the coil usually causes what we call low Delta T syndrome. This syndrome typically increases the energy consumption of chilled water pumps, decreases system overall operating efficiency, undermines occupant comfort, and increases overall operation cost. 

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    Tags: Pressure Independent Valves, Green Building Technology

    Meeting IAQ Requirements by Economizing

    Posted on Tue,Feb 16, 2021 @ 11:32 AM

    Airside Economizing is a great way to reduce operating costs; it also provides the correct ratio of outside air and return air to deliver the proper indoor air quality (IAQ) to meet the codes and provide occupant comfort. Many commercial building owners are paying too much for utility bills and are looking at ways to cut costs. HVAC economizer can make a difference in energy costs.

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    Tags: Green Building Technology, Technical Tips

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