The 5 Major ASSE 1060 Reqs for Backflow Covers

In 1996, the American Society of Sanitary Engineering produced a new standard - ASSE 1060. It focuses on devices that provide protection for fluid conveying pipes which are mounted outside and above ground. The ASSE recommends that backflow preventer enclosures are installed in a way consistent with local codes, most of which require the cover to be ASSE certified. Products can only be ASSE approved if the manufacturer has applied to the ASSE and had the product tested in a lab. Once the product has passed the test, like Safe-T-Cover's products have, they gain a seal of approval. Here's what that approval means.

There's a big difference between classes 1, 2, and 3

Class 1 is the hardest to achieve and backflow preventer covers which fit in rsz_upstate_ny_hartford_green.jpgthis class are commonly referred to as having freeze protection. In terms of the 1060 standard, freeze protection means the heated enclosure will maintain 40° in as low as -30° weather. If you are specifying in an area that freezes, no matter how long the freeze lasts, you should require class 1.

Class 2 only includes covers that have frost protection. This means the industrial enclosure is insulated, but does not come close to meeting the same temperature requirements as class 1. These should really only be specified in areas where temperatures never fall below 33° Fahrenheit.

Class 3 boxes provide no freeze or frost protection at all. These are really only useful for aesthetics as well as theft, vandal, and accident protection.

Not all Enclosure heaters are the same

In 2006, the ASSE standards council determined there should be new requirements regarding heaters in these backflow covers. Now, certain heaters are considered wet/damp certified once they have been tested in an ASSE laboratory. This means the heater can continue to operate even if it becomes damp or wet. This is important in all outdoor, above ground industrial enclosures as sometimes liquids may be introduced into the cover. It's especially important for reduced pressure zone backflow assemblies (RPZ), because they are designed to dump water during normal use. When they fail, they can produce 500 gallons of liquids per minute. Not every ASSE certified enclosure contains a wet/damp certified heater. If you're specifying an RPZ, this an incredibly important distinction.

Download the enclosure design guide with the top 5 enclosure design  considerations

High level of protection

All ASSE 1060 approved backflow enclosures must be capable of providing locked_enclosures_provide_protection.jpgsecurity for the device. Obviously, this includes some sort of lock. It goes much further than that, however, with a test which a 20 lb dead weight drop. If, at the end of the test, the mechanism shows no evidence of damage and still functions, it passes. The structure itself is also tested and must be designed to support a vertical load of 100 pounds per square foot. These are just a couple examples of the rigorous safety tests.

Different kinds of drainage

Since RPZs are designed to dump water whether they're working correctly or failing, ASSE 1060 enclosures must include a way to drain water. If the protective box were to fill with water, it could create a cross connection with the backflow assembly itself through the test cocks. This would defeat the purpose of having a backflow preventer installed in the first place! In order for a backflow preventer cover to be ASSE 1060 approved, it is tested to make sure water will not rise more than 8" inside when a specified flow rate is introduced. There are different types of drains used in the industry, some of which are only holes. These pass the drainage requirements, but pose a big problem if your region requires any sort of frost or freeze protection.

Testing and maintenance safety

backflow_enclosure_with_locking_hinged_lid.jpgWater jurisdictions dictate how often backflow preventer devices are supposed to be tested. Usually, they must be tested each year by a licensed tester. ASSE 1060 certified backflow enclosures must be designed with safety in mind for these testers and for maintenance technicians. For instance, if the enclosure is not large enough to stand in, there must be a method for any lid to be secured in a locked position when it is lifted. There are many other safety precautions in place. However, protective enclosures are not considered confined spaces by OSHA, so there are significantly fewer concerns to begin with.
Now that you understand all the key points within the ASSE 1060 standard, be on the lookout for backflow covers with the seal of approval. They will offer the best quality protection for your expensive equipment.
aluminum enclosures

Topics: Enclosures

Related Posts

3 Reasons Why a Backflow Cover Must Have Heat

From the Field: Tips for Safe-T-Cover Enclosures and Protective PVC Coating

Why RPZ Valves Are Required and How to Install One

How To Design A Pump Enclosure

From the Field – National Backflow Prevention Day

Forward thinking in Arlington, Texas: Leading the way with public health and backflow preventers

Enclosure Checklist: Summertime is the right time to think about winter

Enclosures for Control Valves

From the Field: June 2022

Introducing the MUNI-LOK from Safe-T-Cover

Customizing your aluminum enclosure for pipe penetration

Keep Pump Equipment Cool During Summer Heat

Aluminum Enclosure Spring Maintenance Checklist

3 Reasons to Use Above-Ground Backflow Enclosures and Meters — from Water Contamination to Injury

Heated Backflow Enclosure — Comparing Names, Products & Vendors

Installing Fire Dept Connection & Backflow Prevention Valve for Safety

What is a Backflow Enclosure?

Should I Cover My Well Pump? (Well Pump Cover Ideas)

New Safe-T-Cover LES Models

Backflow Covers: Smaller Footprint Saves Space

The Right Way to Improve Backflow Cover Aesthetics — Use Landscaping

How to Quickly and Safely Remove a Safe-T-Cover Roof

3 Tips for Securing Equipment and Accessories to Interior Enclosure Walls

Top 6 Questions About Covering a Pressure Reducing Valve Station

Virtual Trade Shows Aren't Perfect, But They are Effective

5 Ways Panel Design Equipment Covers Offer Superior Flexibility

The Best Way to Landscape Around a Backflow Enclosure


Quintessential List of Backflow Preventer Enclosure FAILS

Case Study - Water Corrosion Control System Enclosure

Project Engineer vs. Maintenance - A Valve & Pump Covers Tug-of-War

How are Backflow Covers Made?

Three Reasons Why You Should Choose an N-Type Device

Comparing The Costs Of Backflow Enclosures and Buildings

The Right Backflow Insulation Cover & Heater For You | Backflow Cover

Backflow Theft Prevention Cages Fail To Protect Your Backflow Preventer

Find The Right Backflow Cover For You

What Does It Mean To Think Outside The Vault?

How We Construct Our Backflow Enclosures and Pump Covers

This Is How Vinyl Wraps Disguise Backflow Enclosures

How Do You Hide A Backflow Enclosure?

Keep Your Backflow Enclosure Away From The Street

Backflow Enclosure Aesthetics: What Should Matter Most?

What Makes Outdoor Backflow Enclosures More Cost-Effective

This is What Makes Above-Ground Backflow Enclosures So Safe

How to Find the Perfect Enclosure for Backflow Prevention

What You Need to Know About Backflow Prevention and Flood Risks

What You Need to Know About OSHA Confined Spaces & Backflow

The Push For More Above-Ground Backflow Enclosures Is Already On

How Backflow Enclosures Save Money and Eliminate Risk

How to design & Buy a Pump Enclosure

Get the free, editable checklist.



Have a question about a backflow preventer enclosure?
Click the contact us button below and one of our experts will be able to help with your specific enclosure needs.