Raiven For Electrical Contractors’ Post

Effective procurement is key to successful HVAC projects. Our blog covers essential strategies: defining project needs, choosing reliable suppliers, ensuring product quality, and managing timely delivery. Learn how planning and estimating software can avoid delays and control costs. Discover how joining programs like Raiven offers savings and streamlined procurement. Understand the value of evaluating product quality and building strong supplier relationships for better pricing and added benefits. Enhance your procurement process with these tips and keep your projects on track!  Read the full blog here: https://shorturl.at/WBpYf #HVAC #Procurement #ConstructionManagement #SupplyChain #ProjectManagement #Efficiency

HVAC contractors: Are you tired of supply chain headaches impacting your projects? It's time to optimize your procurement process for success. Timely delivery and top-notch supplies are non-negotiables for project success. That's why it's crucial to stay ahead of the curve with strategic procurement strategies. Our latest article offers invaluable insights into streamlining your procurement journey. From defining project requirements to evaluating product quality and aligning your process with business goals, we've got you covered. By prioritizing reliability, quality, and cost-effectiveness in your supplier selection, you can enhance operational efficiency and boost client satisfaction. Staying proactive is key. Keep communication lines open with suppliers, monitor delivery status, and have contingency plans in place for critical items. With a strategic approach to procurement, you can mitigate risks, maximize profitability, and elevate your business to new heights. Too busy with projects to cover all these details? No problem. Raiven can help https://shorturl.at/WBpYf #HVAC #ProcurementExcellence #ConstructionIndustry #SupplyChainManagement #LinkedInLearning

Our Retrofit DPS (Dynamic Purchasing System) is getting a lot of attention lately. Thought we’d let you have a little insight into how a DPS works, especially one as in demand as this one. ·      The Retrofit DPS came about because we realised that retrofit schemes were different. Typical housing procurements churned out typical housing outcomes, and these types of schemes needed a different skillset and an understanding of working to compressed delivery windows and the pre and post installation paperwork and accreditation. ·      We wanted to engage with those specialist contractors who were delivering similar schemes. ·      This DPS was specifically designed for large scale, multi-measure installation programmes to be delivered at pace. Where the funding comes from is irrelevant, this DPS will suit all funding streams. ·      It was designed to allow all clients to choose their procurement route. They can split retrofit services from installations or they can use a turnkey solution. ·      To date the DPS has delivered over £120 million worth of retrofit installations since June 21. ·      Almost £100 million worth of retrofit procurements in the current round of retrofit funding. ·      As it is a DPS rather than a framework there is flexibility to allow access for growing organisations moving into the market. Organisations can join all the time. ·      We have a full suite of documentation and specifications which clients can utilise. ·      We have huge experience of delivering these schemes now. ·      We have an excellent knowledge of the market and its capabilities. ·      We’ve entered a partnership with City & Guilds which provides upskilling training for electrical and plumbing staff to provide them with the skills to install and maintain air source heat pumps and Solar PV. Full details of this DPS and others we run are available by clicking https://lnkd.in/eGCzETAr So if you are interested in knowing more simply contact us by emailing : support@procure-plus.com.

Proper air filter procurement is crucial for the well-being of both the personnel and the HVAC equipment in a commercial building. Learn more here -> https://okt.to/M7KaYn. #AirFilterProcurement #AirFilterProcurementGuide #CamfilAirFilters #CleanAirMatters

Don’t cut corners when you are contributing your own estimates to the calculations performed. For example, even if your salaried in-house maintenance team will be handling all maintenance and repairs except for major restorations and replacements, you still need to make sure that the internal costs of maintenance are approximated based on the anticipated hours per year, with your own labor costs adjusted for inflation, in order to create an apples-to-apples comparison of costs. And though it sounds obvious, double-checking the calculations is always sound practice, as is giving the results a reality check based on your own facility maintenance management experience. If a result looks too good to be true, it probably is. A good ROI tool will display the following parameters so that an independent audit can be made: Inflation rate applied to maintenance Inflation rate applied to materials Inflation rate applied to installation labor Yearly calculations that can be easily verified for completeness and accuracy Want an accurate calculation for your building? Drop me a line at lucid@garlandcanada.com.

👉 Watch on YouTube: https://lnkd.in/g854Nztt. Camfil USA presents a master class on HVAC procurement with Dave Blackwell, Director. Titled "What Are the Top Tips for Procuring Air Filters," it emphasizes performance and total cost of ownership. Dave's insights transcend price comparison, focusing on tailored solutions. Watch to elevate your procurement strategies.

Check Valve A check valve, also known as a non-return valve or one-way valve, is a mechanical device used to allow fluid or gas flow in one direction while preventing or significantly restricting flow in the opposite direction. It is designed to ensure the flow of fluid or gas in a system occurs in a specific direction, preventing backflow or reverse flow. The fundamental purpose of a check valve is to permit fluid or gas flow in the desired direction while preventing or minimizing flow in the opposite direction. This function is crucial in various systems, including plumbing, industrial processes, pumps, compressors, and hydraulic systems, among others. The working principle of a check valve depends on its specific design, but the most common types include the following: 1. Swing Check Valve: This type of check valve has a hinged disc or flap that swings open to allow flow in the forward direction and closes under fluid or gas pressure to prevent backflow. 2. Ball Check Valve: A ball check valve uses a spherical ball as the valve element. 3. Lift Check Valve: In a lift check valve, the valve element, usually a piston or a disc, moves linearly along the axis of the valve body. When the fluid or gas flows in the desired direction, the pressure lifts the valve element, allowing flow. Benefits and Applications: Check valves offer several benefits and find extensive use in various industries and applications, including: 1. Preventing Backflow: The primary function of a check valve is to prevent the reverse flow of fluid or gas, ensuring that it flows in only one direction. This helps maintain system integrity, prevent contamination, and protect equipment from damage. 2. Reducing Water Hammer: Water hammer is a hydraulic shock caused by the sudden stoppage or change in fluid flow direction. Check valves can help mitigate water hammer effects by allowing a controlled closure of the valve, reducing the pressure surge. 3. Ensuring System Efficiency: By maintaining proper flow direction, check valves contribute to the overall efficiency of systems by preventing flow reversal, pressure loss, and backflow-induced inefficiencies. 4. Plumbing and HVAC Systems: Check valves are commonly used in plumbing systems, including water supply lines, sewage systems, and heating, ventilation, and air conditioning (HVAC) systems, to control the direction of fluid flow and prevent backflow. 5. Pump Systems: Check valves are often installed in pump discharge lines to prevent the backflow of fluid when the pump is not operating, ensuring that the pump remains primed and preventing damage to the pump. Join our channel on Telegram to get notified about our posts and updates: https://lnkd.in/dEC6nHyP Video credit: Kosen Valve All rights are reserved for the owners of this video #CheckValve #Valve #Valves

🛞Piping systems for evaporative condensers play a critical role in the operation of these cooling devices. Evaporative condensers are heat rejection units used in refrigeration and air conditioning systems to remove heat from the refrigerant and transfer it to the surrounding air. Here's an overview of the piping considerations for evaporative condensers: 🛞1️⃣ Refrigerant Piping: Evaporative condensers are connected to the refrigeration system through refrigerant piping. The primary purpose of the refrigerant piping is to transport the refrigerant between the condenser and other components of the system, such as compressors and evaporators. The piping should be properly sized and designed to handle the refrigerant flow and pressure. 🛞2️⃣ Water Piping: Evaporative condensers use water to cool and condense the refrigerant. The water piping system supplies water to the condenser and collects and disposes of the cooled water. The water piping should be designed to provide adequate flow rates and pressure to ensure efficient heat transfer and proper condenser operation. 🛞3️⃣ Piping Layout: The layout of the piping system for evaporative condensers should be carefully planned to optimize performance and minimize pressure drops. Proper consideration should be given to the pipe routing, lengths, bends, and fittings to minimize friction losses and maintain the desired flow rates and pressure conditions. 🛞4️⃣ Pipe Sizing and Material: The sizing of the piping for evaporative condensers depends on factors such as the refrigerant flow rate, pressure drop limitations, and water flow requirements. The pipe material should be selected based on compatibility with the refrigerant, water quality, and environmental conditions. Common materials used for refrigerant and water piping include copper, steel, and plastic (such as PVC or CPVC). 🛞5️⃣ Insulation: Insulation is crucial for the refrigerant piping to prevent condensation and energy loss. The refrigerant piping should be insulated to minimize heat gain or loss and maintain the desired temperature conditions. Insulation materials such as foam or elastomeric insulation are commonly used to protect the piping and maintain thermal efficiency. 🛞6️⃣ Valves and Controls: Various valves and control devices are typically incorporated into the piping system for evaporative condensers. These may include isolation valves, pressure relief valves, flow control valves, temperature sensors, and pressure gauges. These components help control the flow, pressure, and temperature of the refrigerant and water within the system. 🛞3️⃣ Safety Considerations: Safety considerations are vital when designing and installing piping systems for evaporative condensers. Proper pressure relief mechanisms, such as relief valves, should be incorporated to protect against overpressure conditions. Additionally, pipe supports and anchors should be provided to ensure the SAT ability and integrity of piping during operation. Comment...

4 Pipe HVAC System Design https://lnkd.in/d9MymFpa A 4-pipe heating and cooling plant contains both central heating and cooling equipment and is capable of delivering heating water and chilled water to the building simultaneously through four pipes (one heating water supply, one heating water return, one chilled water supply, and one chilled water return). Heating and cooling equipment within the building that is connected to a 4-pipe system will have four pipe connections, unless the equipment provides either heating only or cooling only. In this case, the equipment would have only two pipe connections.

In plumbing and pumping systems, "maintaining prime" refers to the presence of liquid (typically water) within the pump and suction pipe. When a pump is in operation, it creates a vacuum that draws water from its source (such as a well, reservoir, or storage tank) through a suction pipe into the pump chamber. This initial presence of water ensures that the pump can efficiently start and continue pumping liquid without interruption. Here are the details of why maintaining prime is important: Efficient Pump Operation: A pump that is properly primed operates more efficiently because it can begin pumping immediately upon startup. Without prime, the pump needs to expel air from the suction pipe before it can begin moving liquid. This process can take time and energy, leading to inefficiencies in the pumping system. Preventing Damage: If a pump loses its prime, it may run dry, causing damage to the pump components. Dry running can lead to overheating, seal damage, and pump failure. By maintaining prime, the pump ensures that there is always a sufficient supply of liquid to lubricate and cool its moving parts, preventing premature wear and damage. Continuous Flow: Prime ensures a continuous flow of liquid through the pump, which is essential for applications requiring constant or intermittent pumping. Interruptions in flow due to loss of prime can disrupt processes and lead to production downtime, especially in industrial settings. Reducing Cavitation: Cavitation is a phenomenon that occurs when the pressure of a liquid drops below its vapor pressure, causing the formation of vapor bubbles. When these bubbles collapse, they generate intense shock waves that can damage pump components. Maintaining prime helps prevent cavitation by ensuring that the pump is always surrounded by liquid, maintaining sufficient pressure to prevent vaporization. Ease of Startup: With prime maintained, pumps can be started and stopped more easily and quickly, without the need for manual priming procedures. This is particularly important in automated or remote-controlled pumping systems where frequent startup and shutdown cycles are common. Stability of System Performance: Prime stability ensures consistent and predictable system performance, allowing operators to rely on the pump to deliver the required flow and pressure as needed. This stability is essential for maintaining process efficiency, product quality, and overall system reliability. In summary, maintaining prime in plumbing and pumping systems is crucial for ensuring efficient pump operation, preventing damage, facilitating continuous flow, reducing cavitation risks, enabling easy startup, and maintaining stable system performance. Various techniques and devices, such as foot valves, check valves, and automatic priming systems, are used to achieve and maintain prime in different types of pumping applications.