Chiller Options: Low Flow Bypass, Overhead Piping Kit & Process Line Shutoff Valves
For Chiller product information please visit https://thermalproducts.com/products/chillers/advantage-engineering
Low Flow Bypass Valve
Adjusting Manual Low Flow Bypass
Adjusting Automatic Low Flow Bypass
Overhead Piping Kit
Process Line Shut Off Valves
Reprinted with permission from Advantage Engineering Chillers
Engine Generator cooling encompasses many options and methods. Typically, you'll find and engine radiator mounted on the engine frame rails or mounted remotely, with custom designed piping running back to the engine inlet and outlet. Depending on the engine and fuel burned, we can design jacket-water cooling, charge-air aftercooling, fuel cooling for your application. The cooling of an engine generator can be designed in a multitude of ways and setups.
The most economical cooling method is the "on engine" package, meaning the jacket water and aftercooler loop are cooled in a stacked core radiator assembly directly in front of the engine. Stacked core simply means, two cores, one behind the other. Another option is to have two cores side-by-side if the fan is having a hard time getting to the required static pressure across the cores.
Many applications that Thermal Products is involved with require the radiator to be in an entirely different location from the engine that is in the basement of a building. This requires custom piping runs between the remote radiator and engine. This arrangement can increase the head pressure on after coolers at the engine and on the engine jacket water loop. A typical radiator, aftercooler and engine, have a maximum pressure rating of 20-30 psi depending on design. Thermal Products can design into the cooling package intermediate plate & frame heat exchangers, that can remove the over pressurization risk to the equipment. In these scenarios the engine room will contain the equipment below:
Thermal Products, with our partners at API Basco, API Schmidt Bretten, IEA Radiators and FloFab Pumps, know that every project is different and can design the right cooling package for each project.
Our Scott Robinson had a recent application requiring a retrofit of an existing aluminum aftercooler (above) to two shell and tube aftercoolers (below) designed with stainless steel tubes for use with cooling tower water. Thermal Products designed an API Basco Pipeline Aftercooler or "PLAC" heat exchanger with custom tube side connections. The PLAC includes a floating back-end, allowing the tube bundle room to expand and contract, as needed.
The original aluminum Aftercooler had failed. When the engine was not in use, the treated cooling water was stagnant in the aftercooler. Over a period of time it simply corroded the aluminum welds, which lead to leaking.
Advantage Engineering Portable Chillers with NEW G-Series Instrument
The NEW G-Series chiller instrument is ready for shipment on new Advantage Engineering Process and portable chillers.
The NEW MG Series controller includes the following:
• Graphic LCD display with intuitive navigation
• Alarm output with audible signal as standard
• Plain language error messaging
• Modbus RTU & SPI communications capability
• Modbus TCP communication available using a
separate “bridge” at an increased cost
• Digital sensing and display of refrigerant and
• No more gauges or pressure limit switches so
less leaking potential
• High ﬂuid temperature shutdown system
• Ability to operate almost any compressor
• Staging of tandem scroll compressors (not
available on M1)
• Single scroll compressor
• Digital scroll compressor
• Screw compressor
Advantage Portable Air cooled Chillers, Portable water Cooled chillers and OACS Outdoor Air-Cooled Chillers have seen a design upgrade
incorporating the G-Series chiller control instrument on single zone units and incorporating new tank designs in many models. These and other minor changes have led to lower selling prices on many Advantage engineering Ciller models.
Contact your local Thermal Products office or sales rep to discuss the new MG Controller or your process cooling needs.
Our partner, Indeeco Electric Heating, now supports CSA listed explosion-proof ﬂange heaters! The sales team at Thermal Products can design and offer a quotation for your exacting explosion proof immersion heater needs with CSA listing. All products are fully customizable allowing Thermal Products to design a EXP Flange Heater solution to fully optimize your process.
Some of the product highlights include power rating up to 3 megawatts with watt densities up to 100 watts per square inch. We can offer a full range of voltages up to 600V. The Indeeco EXP Flange Heater can be designed with a wide range of materials for our flange and elements with sheath temperatures up to 1,200 degrees Fahrenheit.
Extended terminal box, or ""Stand-off" can be provided when necessary to allow for cooler operation of the terminal box. This allows the heating elements to be sealed with epoxy or RTV and for the customer to provide incoming wire with a much lower insulation temperature rating.
The heater can be supplied in accordance with ASME section VIII Div. 1 U-Part stamped and certified.
Bulb and capillary pilot duty or load carrying thermostats can be provided to control the heater. The thermostat bulb can be installed in a thermowell to sense process or element sheath temperature.
Type J or K thermocouples can be provided to monitor the process or element sheath temperatures. Thermocouples provided with a ceramic wafer head and screw terminals for ease of wiring. Alternate type E or T available.
Allows troubleshooting and isolation of a failed heating element.
Construction utilizes alternating half baffles spaced closely to cause increased flow velocity across the heating elements to allow better heat transfer from the elements to the fluid.
Pickle and Passivate
A chemical treatment in nitric acid can be performed to remove free iron from the outer surface of stainless steel for applications sensitive to contaminants.
Is a process similar to plating using cathode and anode reactions but material is removed rather than added to the heater surfaces in order to provide a clean and bright finish. This is very common with the pharmaceutical, biotech and food industries.
To learn more, contact your a member of the Thermal Products sales team for details. Also download the brochure below for more information.
At Thermal Products we carry a wide variety of direct replacement parts and complete Heat Exchangers for API Heat Transfer and many other heat exchanger manufacturers like Standard Xchange, Thermal Transfer, American Industrial and others. We carry all API Heat Transfer brands including Basco, Ketema and Schmidt Bretten heat exchangers.
Whether you need a single pass heads, 2 pass heads or 4 pass heads we can ship to you.
Gaskets, zinc anodes, nut and bolt kits can all be provided by our team at Thermal Products. Contact us today
Basco Type 500 Heat Exchanger and Parts
Ketema HT Heat Exchanger and parts
Ketema AHT Heat Exchanger and parts
Basco Type OP Heat Exchanger and parts
SIGMA Plate Exchanger units and parts
Standard Xchange BCF
Standard Xchange HCF
Standard Xchange SSCF
Standard Xchange SSCF
Custom TEMA Desgined heat exchanger parts
or (518) 877-0231 for all your heat transfer needs.
When speaking of Shell & Tube Exchangers, we tend to break them into "standard" and "custom" shell and tube exchangers. When we talk of tolerances of flow nozzles and support locations, those manufacturers that belong to TEMA (Tubular Exchanger Manufacturers Association) are expected to build each heat exchangers to within those accepted tolerance called out in TEMA.
See link below for TEMA Tolerances brochure.
Having published tolerances is most important for both the customer and the manufacturer, especially when speaking of "custom" heat exchangers as they are built to a fabrication drawing, without the use of a manufacturing "jig" or "fixture". Without the use of a jig or fixture, the skilled welder relies on measuring tools, which is fairly precise to the naked eye, but when measured exactly, the dimensions will not exact each time that part is manufactured. Building shell & tube exchangers with nozzle tolerances of +/- ¼” don’t tend to be an issue for process plant or system integrator customer’s as long as it is not more than the noted tolerance. In that instance it would need to be corrected, especially, for a TEMA Shop.
“Standard” heat exchangers tend to be built for OEM customers that rely on exacting dimensions for each delivery of the same shell & tube exchanger. In order to maintain quality assurance of each unit, the use of a jig or fixture to assist the skilled welder is a must. This will ensure each and every part, that is welded together, to make a shell & tube exchanger will have the very same dimension each time it is made. This allows customers to use a Thermal Products heat exchanger, with precision and speed in their product.
Having shell & tube exchanger's built to precise measurements is also import when looking to replace a heat exchanger in kind. In this case a Drop In Replacement tube bundle or complete heat exchanger is easiest for plant maintenance personal, hospital or school facility engineers, to install. It assures them that they will not need to make any required piping modifications on either the tube side or shell side.
Thermal Products offers Drop in Replacement heat exchanger and tube bundles for a wide range of heat exchanger manufactures. In most cases, Thermal Products will have the needed equipment to manufacturer a NEW heat exchanger or tube bundle that will fit right into place of the old heat exchanger you are removing. If we don’t, we will advise you during the quoting phase and include freight, in our proposal, for you to ship your old heat exchanger to us for duplicating.
If your heat exchanger is custom and can’t ship it to our facility for duplicating, but have a fabrication drawing, we can offer and build a NEW heat exchanger to your fabrication drawing. Please see our latest Drop In Replacement heat exchanger shipment below.
A New England Food company approached Thermal Products, Scott Robinson and our partner Advantage Engineering to assist them in designing a new process cooling system to cool a new low protein food being manufactured and then packaged.
At first review the (3) process cooling loads were deemed to be in the neighborhood of 100 tons total, depending on product batch temperatures. The initial design fell well above the customers budget for this project and forced us to review other avenues.
During the site visit, Thermal Product’s Scott Robinson, noted that the incoming city water temperature was within a temperature range to handle two of the three processes and recommended using the city water to send to the existing Plate and Frame heat exchangers that were isolating the cooling water from the process food, affording Thermal Products and Advantage Engineering to offer a revised proposal to handle 80% less cooling load. This not only reduces the capital costs of the chiller, substantially, but also lowered the operating costs significantly from what was originally thought.
Scott determined the remaining third process, did require 6.5 gpm of 36°F cooling water to be supplied prompting a revised proposal for a 20 Ton Advantage Engineering Air Cooled Chiller Model OACS-20 with a close approach Plate and Frame exchanger, again to isolate a 30% Propylene Glycol and Water mixture from water heading to an existing heat exchanger with process food on the other side. Scott needed to “de-rate” the chiller to the 9.75 ton load thereby needing 20 tons. The industry design standard for chillers has been a base design of 50°F chilled water temperature @ 95°F ambient temperature. When a lower cooling temperature is required, as Scott did in this application, a higher nominal ton capacity is needed to reach 36°F. The final chiller included some of the equipment below.
• Air Cooled Condensed R407c refrigerant circuit
• Scroll compressors with hot gas bypass capacity control
• Crankcase heater for cold start-ups
• Discharge check valve
• Brazed Plate Heat Exchanger as the evaporator
• 3HP process pump
• NEMA 4 Control Cabinet
• Advantage Proprietary MI Microprocessor control instrument
• Plate and Frame Heat Exchanger, shipped loose for installation indoors
Thermal Products was able to further assist our customer’s tight delivery needs by doing a small customization of a stock chiller in order to have the chiller onsite in Massachusetts in 1 week from order.
The next step Scott says is to consider storing the approximately 10,000 gallons of elevated hot discharge water used daily by trimming those BTU’s off in one large insulated poly tank.
“I have a design in the works to recirculate and cool daily water by preventing it from costly one time use then down the drain”.
“Q3 and Q4 is the timeframe to look at this”
Please look for the follow-up article to wrap-up this application! Please contact Scott Robinson or any of the Thermal Products team to discuss your application
Scott has been with Thermal Products for over 7 years, but has more than 30 years’ experience in the HVAC and refrigeration industries, an easy shift to our line of heat transfer and related industrial products. Scott is an ASHRAE member and retains numerous state trade licenses. Scott is responsible for the New England trade areas.
Titanium TEMA Type AET ready for Shipment
Thermal Products was approached by a chemical company to design an Acetic Acid heater using 450 Thermal Oil. Heating Acetic Acid to a precise process temperature is key in the manufacturing insulated boxes.
Thermal Products designed a TEMA Type AET with a titanium tube side, meaning titanium tubes, titanium baffles and bundle supports, titanium tube sheets, titanium channel head, titanium reversing bonnet and titanium tube side connections.
A TEMA Type AET, is designed with a front channel head with channel cover, which enables the tube side of the heat exchanger to be cleaned without breaking or removing any of the piping. See figure "A" below.
The backend or rear bonnet was designed with a pull through floating head. This design takes into account thermal expansion and the ability to have a straight tube design with a removeable tube bundle. See Figure "T" above.
If you have an application that would require higher alloy materials, contact Thermal Products via phone, email, website inquiry form or chat feature on our website.
A local distributor was looking for three replacement tube bundles for Thrush Heat Exchanger Model S1848(2). Thermal Products offered our exact duplicate tube bundle Model TBU-18-48-2 with .049 wall copper tubes.
Thermal Products manufacturers drop in repalcement tube bundles for many shell and tube heat exchanger manufacturers, such as Armstrong heat exchangers, Taco heat exchangers, Bell & Gossett heat exchangers, Yula heat exchangers, Patterson Kelly heat exchangers, Basco heat exchangers, ITT heat exchangers, Xylem heat exchangers, Standard Exchange heat exchangers, American Standard heat exchangers and many more.
All Thermal Products replacement tube bundles meet OEM specifications and in many cases, surpass. Contact us today for your quote!