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We are Innovators of new engineering and manufacturing techniques, dedicated to quality and continued growth. Here you can quickly locate information related to products such as submittals, specifications, installation, operation, and maintenance guides, etc. Welcome Jasmine Gooden, new Electro-Mechanical Field Engineer for IMI Hydronic Engineering!

Jasmine brings significant experience to her new role from. Welcome, Hogan Cuny, IMI Hydronic Engineering's new Regional Sales Manager for the Northeast! Hogan joins the sales team bringing experience.

read more › Our products and services are available through marketing companies and sales offices in 16 countries and by partners in over 30 countries. IMI Flow Design is the North American brand leader in manual & automatic flow control devices. IMI Flow Design is a brand of the IMI Hydronic Engineering division of IMI plc. IMI Hydronic Engineering has 1,500 employees in 17 countries. As its name implies, the group's common denominator is Hydronics. There are four key brands that encompass IMI Hydronic Engineering, to include; IMI TA, IMI Heimeier, IMI Pneumatex and IMI Flow Design.

read more › System equipment, such as chillers and individual terminal units, is the heart of any HVAC system. Extreme care and time is dedicated to their selection and performance criteria. However, without proper flow through these units, their efficiencies and heating or cooling transfer capabilities are altered. By specifying automatic balancing, the designer is assured that the system is accurately and dynamically balanced. This means that all components will perform as specified regardless of changes.

read more › The dynamic AutoFlow valve adjusts to lower differential pressures to provide design flow at any pump speed. When pump speed is reduced in a direct return system, header pressures are reduced and some interior manually balanced coils will experience underflow. With AutoFlow valves, the design GPM for each coil is maintained for the life of the building. Manual balancing devices are commonly used as shut-off valves and require a memory stop to maintain the set position. Because the memory stop can be adjusted, the "set position" can be lost, which will increase system flow and operating BHP.

read more › Although the use of automatic flow regulators has continued to gain industry approval in the past years, resistance to their use still exists. Most resistance is based on misconceptions about their use or on outdated information. Following are several of the most common misconceptions along with practical responses. The tamperproof nature of the AutoFlow sets the design for the life of the building. It cannot be changed easily by well intentioned maintenance personnel. However, if the flow requirement changes, a different AutoFlow cartridge with a new GPM can be installed in a few minutes.

read more › The patented consolidated variable side porting and single orifice end hole provide the absolute maximum orifice size and minimum flow restriction at a given pressure differential. The large end port boosts low pressure flow though the cartridge, utilizing the vena contracta occurring directly behind the variable side ports. The engineering and manufacturing processes employ a total CAD/CAM system, producing seven different cartridge sizes for optimum flow regulation. These cartridges are capable of controlling flows from 0.5 to 25,000 gallons per minute.

read more › At 100 percent flow, the balancing valves absorb increasing amounts of head the closer the coil is to the pump. The balancing valve at Terminal A is set at a pressure drop of 77 feet to provide an equal balance. The second diagram shows the same system at 50 percent flow with all ATC's modulated equally, except Terminal A which is wide open. At half flow, the distribution losses are 25 percent. This reduces the pump head to 50 feet and the differential pressure across Terminal A is reduced to 48 feet.

read more › The GPM for the automatic flow control valves shall be factory set and shall automatically limit the rate of flow to within five percent of the specified GPM over at least 95 percent of the control range. For 1/2"-2", the flow cartridge shall be removable from the Y-body housing without the use of special tools to provide access for regulator changeout, inspection and cleaning without breaking the main piping. Pump Head Requirement - The permanent pressure loss added to the pump head shall not exceed seven feet.

read more › Kit A features the AutoFlow automatic balancing valve on the return side of the coil as recommended by ASHRAE. Automatic balancing offers a number of advantages over manual or differential temperature balancing. This eliminates the chance of low water flow to heat pumps, which can reduce BTU capacity and cause compressor noise and excessive wear due to high freon head pressures. No balancing is required at start-up. When the water pump is turned on, each terminal unit automatically gets the correct design flow.

read more › Kit B has a manual balancing valve on the return side of the coil as recommended by ASHRAE. The VersaFlow manual balancing kit features a calibrated venturi valve instead of a circuit setter. The venturi has a number of advantages over the circuit setter. The venturi provides 2 - 3% accuracy. With a high quality differential pressure gauge, a combined accuracy of 10% is almost always obtainable. The permanent pressure drop is typically 1/10 that of a conventional circuit setter. The lower pressure drop can reduce the pump head so that a smaller size pump can be selected to save energy.

read more › Regardless of balancing method selected, all kits have valuable common features on which most designers and owners can agree. Each assembled hose is individually tested hydro-statically for leak and mechanical integrity. EPDM was chosen as the core for the F.D.I. hose products because of it's superior qualities of strength, high temperature limitations, flexibility, memory and resistivity to chemical additives found in HVAC systems. Swivel ends minimize installation time and allow "looping" for initial flushing and draining of piping systems.

read more › The common goal of engineers, controls contractors, building owners and operators when designing, installing and commissioning HVAC systems. And that means two things: Consistent comfort for tenants and users at every building location Energy efficiency for reduced consumption and costs Hydronic engineering is the foundation for optimal HVAC system performance. What Does It Mean? 2-32 psi means that as long as the difference in pressure between the two ports on the valve is greater than 2 psi and less than 32 psi, the flow will be within 5% of the rated flow.

read more › Anyone who's ever worked with Hailey Mick knows all about her passion for problem-solving. As an Engineering Applications and Technical Sales Manager for IMI Hydronic Engineering, Hailey has helped thousands of customers find the best hydronic balancing solutions to meet their projects' needs. Or as Eric Gaumer of HPS Specialties, a key business partner located in Maryland, recently put it, "Hailey has us covered on the technical side." So, her response to the deadly tornado that struck Chattanooga, Tennessee just before midnight on Easter Sunday is not surprising.

read more › With social distancing keeping us apart, we challenged the IMI Hydronic team to connect with customers through video that shares their favorite activities and IMI products. The series continues with Julie Coronado, Customer Support Supervisor at IMI Hydronic North America, who enjoys the outdoors, especially walking her dog. With social distancing keeping us apart, we challenged IMI Hydronic team members to connect with our reps and their customers through video by sharing their favorite activities and IMI products.

read more › Our people are our future and because we know that our success lies in your talent, commitment, innovation and professionalism - we will invest in you. After all, it's what gives our business its competitive edge and it's why our workforce is as diverse and successful as the global markets we serve. Over the years this investment has created various specialized training and development initiatives including the IMI Boot Camp and Management Fundamentals providing current and leaders of the future the skills and competencies to be successful underpinned by the IMI Leadership Blueprint.

read more › All RMA s are subject to inspection prior to credit being issued and must be within the warranty coverage period. Please include the RMA number on all correspondence, shipping documents, and packages to ensure prompt handling. All returned products must have a Return Material Authorization (RMA). The foregoing is in lieu of all other warranties, ex pressed or implied. This warranty statement sets forth the extent of our liability for breach of any warranty or deficiency in connection with the sale/use of the products.

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