Frequently Asked Questions
- ▶ Does Thrush offer the Hot-Pak in a horizontal design?
Yes. An example of this layout can be viewed in the current Thrush Hot-Pak brochure and the Hot-Pak product page. This layout is also available in a duplex option with two Hot-Paks on one frame. Drawings and dimensions are available upon request.
- ▶ Does Thrush have heat exchangers in stock?
Yes. Thrush does stock some heat exchangers. All of the standard model Straitube heat exchangers are in stock. Models of popular u-tubes are also stocked in standard design construction.
- ▶ Does Thrush offer heat exchangers made to custom dimensions?
Yes. Thrush can build to virtually any customer's needs and dimensions. We can design and build complete drop-in replacements for most u-tube and fixed tube applications. As standard we build to ASME section VIII, Division 1 standards and can also accommodate TEMA standards as well. Keep in mind that some dimensions or requirements may conflict with ASME codes and some compromises may be required.
- ▶ Does Thrush offer replacement tube bundles for heat exchangers made by another manufactures or to custom dimensions?
Yes. Thrush can manufacture replacement tube bundles for virtually any type or brand of u-tube heat exchanger. In some cases field measurements are required to insure proper fitment. (Download the replacement tube bundle dimension and data sheet.) Thrush offers various material and tube options to meet the most demanding operating requirements. Contact your local Thrush representative today to learn more.
- ▶ What size gasket does my Thrush heat exchanger use?
It depends on whether it is a u-tube or a stock Straitube. The u-tube gaskets are based on nominal diameter of the heat exchanger and not the diameter of the gasket. For an example, a 12" u-tube uses a 12" heat exchanger gasket. This gasket is the same diameter as the raised face of an ANSI flange. A Straitube gasket is model specific and should be chosen based on the actual model of the heat exchanger. For example a model 320 Straitube uses and model 260, 320, and 380 replacement gasket. Straitubes also have front and rear specific gaskets. Be sure to specify if it is for the front or the return head.
- ▶ Can Thrush supply a replacement heat exchanger head or channel with custom dimensions?
Yes. Thrush can build to virtually any customer's needs and dimensions. We can design and build complete drop-in replacements for most designs. As standard we build to ASME section VIII, Division 1 standards and can also accommodate TEMA standards as well. Keep in mind that some dimensions or requirements may conflict with ASME codes and some compromises may be required.
- ▶ When do I need to use a double wall heat exchanger?
Double wall heat exchangers are design to keep the working fluids from cross contaminating if a tube wears or fails. Each tube is actually a tube within a tube and there are two tubesheets. The tubes are sealed to the tubesheet that it is in contact with and a gap between the tubesheets lets a leaking tube drip between the tubesheets to signal a tube failure. May plumbing codes require this for heat exchangers being used to heat domestic water. Check your local codes to see if it affects your application.
- ▶ Do I need to lubricate or oil my Thrush circulator?
It depends on the type of circulator and bearing used in the circulator bracket assembly. All sleeve bearing circulators require oil lubrication. Sleeve bearing bracket assemblies have a flip up oil fill cap on them. Check the operating instructions for your specific pump model to be sure. Don't forget to check the motor as well. Sleeve bearing motors have similar oil cups located on top of them as well. (Place instructions or link to the location on the website of operation and maintenance manuals here).
- ▶ Can my Thrush circulator or pump be installed with the shaft in the vertical position?
Only if it is a vertical circulator or pump. All Thrush circulators or pumps that may be installed with the shaft in a vertical position have a "V" for "Vertical" in their model designation. Example models: V, 22V, GTV, TV2g, ect.
- ▶ Where can I get price and availability on Thrush products?
You can get price and availability through your local Thrush representative or they may direct you to a stocking distributor in your area. Representative Locator