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Dakota Series
Steam Cleaners and Pressure Washers
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Read about our Certifications

Sioux Dakota Series Steam Cleaners

Consider These Features and Benefits:
  • Certified to UL1776 and CAN / CSA-B140.11-M89. Complies with OSHA 1910.399 regulations. Third-party certified by a Nationally Required Testing Laboratory. Protect your employees, your company, and yourself. Certified equipment helps protect against OSHA fines and possible litigation.
  • Approved for indoor and outdoor use. Gives greater flexibility for all your applications.
  • Improved Coil Design. Allows total draining of vertical coil. Patented tilting coil allows simple burner adjustment and maintenance. High efficiency, lover fuel usage, saves you money.
  • Easy-access electrical enclosure. Quick, easy troubleshooting, and maintenance.
  • Strong structural steel frame. Built to last. Protects your investment.
  • GFCI on single-phase machines. Protects operator from electrical shock.
  • Designed to be environmentally safe.
  • Low CO emissions, significantly below the present UL-1776 allowable CO emissions levels. Helps improve air quality.
  • Efficient coil design - Less fuel usage, less smoke, lower emissions.
  • Wide range of options and accessories. Ability to customize machines to your exact needs. You get the exact machine your specific application requires.
  • 320F pressurized water temperature before exiting nozzle (steam cleaners, and steam option on hot water pressure washers) compared to other brands at only 250 F or 290 F -produces 58% to 338% more cleaning impact. Faster, more efficient cleaning.
  • Steam option with detergent capability. Ability to use detergent in all operating modes.
  • Sioux Steam Cleaner Corporation has been in business since 1939. Our designs are based on many years of experience in the Steam Cleaning Industry. We will be here to support you today, tomorrow and into the future. If you need a custom machine, we probably have already designed it.
  • Our Technical Services Department is only a toll free phone call away. 90% of parts orders are shipped within 24 hours. Sioux helps keep your machines up and running.

Other Important Standard Features:

  • Stainless steel coil wrap
  • Ceramic, multi-plunger water pump with forged bronze heads
  • Quick connects on hose, gun, and wash tips
  • Adjustable detergent system
  • Totally enclosed fan cooled (TEFC) motor
  • Solid molded-rubber casters
  • Dual lift eyes
  • Shut-off gun
  • 50' hose
Sioux Dakota Series Steam Cleaners
A High Pressure Hot Water Washer or a Steam Cleaner? Which is Best....

Myth: Steam cleaners are outdated.

Reality: There are many applications where a steam cleaner is better than a high pressure hot water washer.

At Sioux, we have been building both types of machines for many years. There are some advantages to using hot water washers and some advantages to using steam cleaners. Each cleans in a different way. Determining which machine is best depends on the application.

  • With pressure washers, dirt and grime are blasted away, under pressure. Heat will improve the result if melting is required, and use of the proper detergent will enhance cleaning.
  • Steam cleaners are best when the substance to be removed melts, softens, or dissolves with the application of heat. This is the case with grease, oil, tar, many petrochemicals, ice, wax, food products, and similar materials. The substance is melted or dissolved, rather than pushed around the surface. Use of proper detergent will enhance steam cleaning.


With a Dakota Series steam cleaner, when heated water at a temperature of 320 F and a pressure of 250 PSI flashes into vapor as it passes through the steam nozzle, there is a tremendous expansion, producing about the same impact as a 1,000 PSI pressure washer, with 86% more heat transferred for cleaning. If heat is what is really needed for cleaning, a steam cleaner (vs, a hot water washer) offer the following benefits:
  • Operates with less power consumption, reducing your electric bill
  • Requires a smaller electric circuit for installation, and therefore, may be used in more locations in your facility.
  • Uses less water during operation, reducing your water and sewer bills, reducing the volume of wastewater to be processed.
  • Produces less splattering and splash-back, protecting the operator and your facility.

All steam clean3ers are not the same. At comparable flow rates, a 320 F steam cleaner produces approximately 40% more steam and will transfer approximately 13% more heat to the surface than the 290 F steam cleaner. The increased heat and steam also significantly increase the cleaning impact, as illustrated in the chart below.


Pressurized Water Temperature
Before Exiting Nozzle as Steam
% Increase in Cleaning Impact of
320 F vs. Lower Temperatures


320 F vs. 300 F
+34%
320 F vs. 290 F
+58%
320 F vs. 280 F
+118%
320 F vs. 265 F
+167%
320 F vs. 250 F
+338%


Belt Drive vs. Flexible-coupled Drive

What is More Important, Pressure or Flow?


One important factor to consider in comparing belt vs. direct or flexible-coupled drive is the motor and pump speed. It is commonly thought in the industry that belt drive will last longer than direct drive. This is not necessarily correct, as explained below.

Our line uses all 1750 RPM motors, and all of our pumps run between 1400 RPM and 1750 RPM. In this RPM range there is not much difference in life expectancy of pumps when comparing belt drive to direct or flex-coupled drive. There is a difference in pump life between a direct driven pump running at 3400 RPM and a belt driven pump at 1000 RPM. Some pump designs work better for direct and others work better for belt. Where we are offering a direct or flex-coupled design as our standard, we are using a pump that has been designed and tested for this use.

It is also very hard to make the generalization that one is always better than the other. For example, if properly maintained and running at the same RPM, a belt drive system may have a longer life. However, if the belt drive system is not maintained properly and the motor and pump become misaligned, the belt tension changes, or belt(s) wear, the direct or flex-coupled system may last longer.

For most models our standard will be a flex-coupled or direct-drive pump and motor combination, which provides greater customer value. A belt drive option is available on most models.

For a given cleaning application there are many flow / pressure combinations from which to choose. Here are some criteria you can use to select the best flow and pressure combination for your application.
  1. Consider the capacity of your water source. If you have a limited water supply, then you would choose high pressure vs. high flow.

  2. Consider how important heat is in your cleaning application. If heat is critical to your cleaning application, then higher flow is better. The more hot water you can move across the surface, the faster you can heat it and clean it. If additional heat would help, a steam cleaner should be considered.

  3. For a given horsepower there may be several flow and pressure combinations available. Higher flow and lower pressure for a given horsepower will result in more impact and more work. The example below compares two different 7.5 hp machines. You can see that the higher flow rate option results in 29% more work and 40% more cleaning force.

  4. It is commonly believed that lower flow and higher pressure will produce less runoff, and less wastewater to process. This may be true in some applications. But if a higher flow machine can perform the same job faster, then the total amount of water used may be less. Temperature should also be considered to reduce water consumption. It may be better to use a higher temperature rather than increase flow or pressure in order to minimize your wastewater.




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