Our Most Frequently Asked Questions
1. What information is required to prepare a quotation for an Enerquip heat exchanger?
To perform heat transfer calculations, we need the following:
- Thermal properties of the product and utility fluids (density, specific heat, thermal conductivity and viscosity) at a minimum of 2 different temperatures.
Also, we have a database of thermal properties for a wide range of common fluids; in many cases, the name of the fluid will be sufficient for us to find the fluid properties.
Example – my application is for cooling water for injection (WFI) using propylene glycol
- Specific process data – flow rates and inlet and outlet temperatures of product and utility fluids.
We also recommend that further details are provided, such as preferences for material of construction and connection size and type, required pressure and temperature ratings as well as maximum allowable pressure drop.
2. I need a heat exchanger for immediate delivery. Does Enerquip keep any units in stock?
Enerquip stocks a range of standard u-tube exchangers, common for CIP and water heating applications, as well as replacement tube bundles and gaskets for some of our most common exchangers.
3. Does Enerquip build custom heat exchangers? What is a typical lead time?
Enerquip’s team of engineers utilize in-house thermal design and mechanical design software to find custom solutions for our customers. Based on your specific process, we design a heat exchanger to fit your needs. Our project review team manages your order to insure competitive lead times. Depending on material availability and shop capacity, we can build custom equipment in as little as 6 weeks, and offer expedite options when possible.
4. What are the most common materials of construction in Enerquip heat exchangers?
We primarily work with austenitic stainless steels (304L & 316L). When requested, we can quote other alloys, including Hastelloy, AL6XN and Duplex.
5. Are Enerquip heat exchangers recommended for installation in a horizontal or vertical position?
While the heat exchangers can typically work in either position, some processes are better suited for a vertically mounted exchanger; condensers and evaporators, for example, perform more efficiently in a vertical position. Most liquid-to-liquid and steam heating processes will work fine in a horizontal position. Also, for sanitary processes that require enhanced drainability, we can offer designs for a pitched horizontal installation. Our proposal and specification sheet(s) will state the recommended position for your specific process.
6. What software do you use for the design of an Enerquip heat exchanger?
We use HTRI (Heat Transfer Research Inc) and their Xist & Xipe programs to perform the heat transfer calculations and complete the mechanical design using Solidworks 3D modeling software. We also use Compress to perform the calculations required to meet ASME Code.
7. What type of condensers does Enerquip build?
Enerquip designs and builds a variety of stainless-steel condensers including: Solvent Recovery Condensers, Reflux Condensers, Knock-Back Condensers, Cold Trap Condensers, Pharmaceutical Condensers, and Terpene & Oil Condensers. We can meet your process requirements while working within your size limitations. Our engineers have the expertise, ASME Code & TEMA knowledge, and industry experience to design condensers for even the toughest applications.
8. Do Enerquip heat exchangers meet specific code requirements?
All Enerquip heat exchangers are designed and built in accordance with Section VIII, Div. 1 of the ASME Boiler and Pressure Vessel Code, which ensures a safe and reliable product for our customers, and increased peace of mind for plant operators and owners. Every exchanger is inspected, hydro-tested, and code-stamped prior to shipment.
9. Do Enerquip heat exchangers meet TEMA requirements?
Yes, Enerquip designs heat exchangers to the TEMA standard to ensure best practices are followed from engineering through fabrication and testing. The TEMA standard provides better consistency in designs and allows us to better predict how an exchanger will perform once it is installed. We design and build exchangers to TEMA B, C, and R depending on your particular application.
10. Does Enerquip have 3-A certification?
Enerquip is one of only a few elite exchanger manufacturers who is certified to build heat exchangers to the 3-A Sanitary Standard to meet the sanitary requirements of the dairy and food industries.
11. Can I request a video conference to discuss my specific project needs in person?
Yes! We encourage our customers and new prospective clients to collaborate with our engineers “live” from the comfort of their offices – wherever they may be. These interactive screen-sharing sessions give our customers a chance to see their heat exchangers being designed, and assist with fine-tuning the details that will result in the perfect exchanger for their heating and cooling application. For more information, visit our team page.
12. What design options are available?
Enerquip offers a diverse selection of design options, including a variety of surface finishes, passivation and cleaning, lugs and support saddles, electro-polishing, sand-blasted finish, insulation with stainless jacket, extensive documentation package, vacuum breaker kits, tube cleaning kits, and hinged covers.
13. Does Enerquip offer engineering support?
Yes, Enerquip offers full engineering support to our customers. We can confirm thermal sizing for existing exchangers. We also offer initial thermal modeling of new exchangers, time to heat and time to cool calculations, budgetary pricing for projects, and detailed final sizing and mechanical design with ASME calculations.
14. What industries does Enerquip serve?
Enerquip serves many industries, including Food & Dairy, Pharmaceutical, Brewing & Beverage, Cannabis, Chemical, Commercial Grade HVAC, Personal Care, Refining & Renewable Energy.
15. What size membrane housings does Enerquip offer?
Enerquip’s membrane housings are available in 4”, 6”, and 8” diameters and various lengths.
16. Do your heat exchangers include baffles in the shell side?
Nearly all our designs include baffles, with the style and quantity determined by a number of factors. In addition to offering support for the tubes (to minimize vibration concerns), the baffle orientation directs the shell side fluid, and optimizing the cut and quantity can maximize the heat transfer within the exchanger. Our sizing software, HTRI, includes modules for vibration analysis and allows for a variety of cut and orientation options to create optimal heat transfer conditions.
17. Does Enerquip have a Factory Acceptance Test (FAT) Plan?
When required, QC will develop an ITP (Inspection & Test Plan) for the equipment. Since shell and tube heat exchangers have no moving parts, the FAT is typically an inspection of physical dimensions, nozzle locations, and support locations as a mechanical comparison against the drawings, specifications, and data sheets. We also review documentation and any special processes, and hydro-testing is witnessed by our 3rd party inspector.
18. What type of expansion joint is best for my exchanger?
The two most common types of expansion joints used in shell and tube heat exchangers are bellows type and flanged & flued.