ERS Wrap™ Blanket Industrial Insulation is a Multipurpose, Removable and Reusable Industrial Blanket Insulation Made of Fiberglass Insulated Fabric For Use in Mechanical Industrial Insulation For Insulating High Temperature Processes.

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ABOUT:  ERS Wrap™ is a multipurpose sewn industrial insulation blanket that can be used to insulate virtually any hot mechanical part up to approximately 400°.  Our industrial insulation blankets will significantly reduce surface temperatures, providing personnel protection and saving you money!  

APPLICATIONS:  We primarily use our small blanket ERS Wrap™ covers to insulate valves and flanges.  They come in various widths and lengths, but are all rectangular in shape.  They also come in handy when insulating irregular components!

MATERIAL SPECIFICATIONS:  The small insulation blanket covers are made using a silicone impregnated fiberglass fabric, and lined with temp mat.  Temp mat is a fiberglass needled insulating fabric suitable for high temperatures.  Click the below button to learn more about the materials used to fabricate ERS Wrap™.

Check out our slideshow of valve/flange covers in the field!

Valve/flange covers in the field



IPS: 1/4" - 2" 
Flange: 6"W x 25"L
Valve: 12"W x 25"L

IPS: 21/2" & 3" IPS
Flange: 6"W x 30"L
Valve: 12"W x 30"L

IPS: 3-1/2" & 4"
Flange: 6"W x 35"L
Valve: 16"W x 35"L

IPS: 5" & 6" 
Flange:  6"W x 40"L
Valve:  16"W x 40"L

FLANGE OD = ADJOINGING INSULATION OD:  We've installed thousands of flange coverings.  If the adjoining insulation is the same outside diameter (OD) as the flange,  6" width is a good fit. 

FLANGE LARGER OD THEN ADJOINGING INSULATION:  If the adjoining insulation is a of a smaller outside diameter (OD), you may want to do  go wider and use the "build-up" method for the exposed side facing flange.  See our video below demonstrating the build up method.  

VALVE:  A 12" or 16" width works for most valves.  The width of the valve cover is determined by measuring from outside flange, to outside flange.  

With all of our products, when in doubt, GO LARGE!!  


Before Installing ERS Wrap™ Valve & Flange Blanket Insulation

To determine the appropriate length, we calculate the circumference of the flange.  We calculated circumference based on iron pipe size (IPS) of the adjoining pipe for class 150 flanges.   You need enough length to "wrap" the cover around the flange and have it overlap.



TOOLS/SUPPLIES NEEDED:  Cable ties, cable tensioners, scissors, staple gun/staples, and silicone caulk

1. ADJOINGING INSULATION LEVEL WITH FLANGE:  Wrap cover around the flange.  Make sure to do in a watershed position.  Secure with outdoor grade black or stainless steel cable ties.  DONE.

Flange Without Wrap Cover
Flange With Wrap Cover

2. ADJOINING INSULATION IS LEAVES SIDE FLANGE EXPOSED:  Check out the below video that demonstrates the "build-up" method.

3.  VALVE -  NO CUT FOR LEVER:  Based on the size of the bonnet, we will recommend a cover or a roll appropriate.  The blanket insulation is wrapped around the bonnet or middle component of the valve.  If the lever is on the top of the bonnet, no problem.  Wrap and secure using cable ties. 

No cut for lever in Valve

4.  VALVE - CUT NEEDED FOR LEVER:  If there is a lever on the body of the bonnet, you will need to cut the cover to accommodate the lever.  Where the insulation is cut, you can fold the cut portion under and staple the insulation.  Additionally, you can apply silicone caulk to enhance the appearance and prevent the inflow of water.  Secure the cover with cable ties.  

Cut in Insulation Covers of Valve
Cut in Insulation cover for Lever

Flange and Valve FAQ

How long does it take to install?

You can install ERS Wrap to a valve or flange in minutes!

What tools/supplies do I need to install ERS Wrap on a valve or flange?

1. Cable Ties - You can choose outdoor grarde black cable ties or stainless steel 2. Cable Tie tensioner - used to draw down and cut the cable ties 3. Scissors - Should you need to cut the cover to accomodate for levers. 4. SIlicone caulk - You can seal any part of the cover that is cut with caulk. 5. Staple gun and staples - if you need to cut the blanket insulation to accomodate for levers in the valve, you can fold the cut insulation under and staple it.

Do I need a professional to install?

No! Anyone who can operate cable ties and scissors is qualified to install our ERS Wrap blanket insulation.

Why are valves and flanges left uninsulated?

A flange and valve are larger in diameter then the ajoining pipe so they are often left uninsulated. Typical industrial insulation is specific to IPS (Iron Pipe Size) and can not accomodate increasese in diameter.

What if I have an outside face exposed?

No problem. You can also check out our video on the "build up" method. If there is no ajoining insulation (or a gap in insulation), you can "build-up" the sides of the exposed face using a narrow ERS Wrap blanket insulation roll. You would wrap the narrow roll around the ajoining pipe until the insulation "build up" is even with the flange. When it is even, you secure with a zip tie. You take your flange/valve cover and wrap around! Done!

Will I need to make any cuts?

For a flange, no. For a valve, you will need to cut around any levers to fully wrap the valve.

Do you sell all the tools and supplies needed for install?

Yes! We sell scissors, cable ties, cable tensioners, silicone caulk, and the staple gun/staples we recommend for installing our ERS Wrap blanket insulation.

What is the outside diameter for class 150 flanges?

Like most things in the industrial insulation world, we start with the iron pipe size (IPS). We calculated the circumference for our flange recommendations based on class 150 flanges. Column 1: IPS
Column 2: Outside Diameter for Class 150 Flange
Column 3: Calculates circumference needed using 1/2" temp mat
Circumference = (flange OD + 1" total width of tempmat) x pi or 3.14 rounded to the nearest whole number
Column 4: Rounds the 3" to ensure the cover has enough length to overlap

What does the class of a flange mean?

The class of a flange refers to the maximum pressure that a flange withstands at increasing temperatures. Flanges with a higher rating (class) are stronger than flanges with lower ratings, as they bear more pressure at increasing temperatures. The class of flange may also be referred to as the "flange rating." Our recommendations for length of covers are based on class 150 flanges.

How many flange classes are there?

There are seven flange classes: 150#, 300#, 400#, 600#, 900#, 1500#, and 2500#. The higher the flange class, the heavier the flange, and higher the flanges ability to withstand higher pressure and temperature. As the temperature goes up for a given material, the maximum allowable pressure goes down, and vice versa.

How do you calculate the circumference of a flange?

You must first determine the flange OD or outside diameter. You must also add the width of the insulation x 2 and then muliply by pi, see below: (Flange OD x (1/2" thick x 2)) x pi or 3.14 We add 2-5 inches to that to ensure our covers have ample length to overlap.

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