Insulation Energy Savings Chart

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This is how a properly insulated valve can save you money and justify the investment with a short Return On Investment (ROI). You will not need any tools or complicated fabrication instructions to install our Thermaxx Jackets. “JUST WRAP and STRAP”.

When maintenance is required our pads are easily removed and quickly reinstalled to save time and money, using your own staff.

Energy SAVINGS* from Installing Removable Insulated Valve Covers, Btu/hr

Operating
temperature, °F

Valve Size, Inches

3

4

6

8

10

12

200

800

1090

1560

2200

2900

3300

300

1710

2300

3300

4800

6200

7200

400

2900

3400

5800

9300

10800

12500

500

4500

6200

9000

13000

16900

19700

600

6700

9100

13300

19200

25200

29300

*Based on installation of a 1-inch thick R 3 insulating pad on an ANSI 150-pound-class, flanged valve with an ambient temperature of 65 degrees Fahrenheit and zero wind speed.

Example:
Using the table above, calculate the annual fuel and dollar savings from installing a 1-inch thick insulating pad on an un-insulated 6-inch gate valve in a 150-pounds-per-square-inch-gauge (psig) saturated steam line (406°F). Assume continuous operation with natural gas, at a boiler efficiency of 80% and a fuel price of $16.00 per million Btu ($16.00/MMBtu).

Results:
Annual Fuel SAVINGS= 5,800 Btu/hr x 8,760 hr/yr/ (0.80 x 106 Btu/MMBtu) = 50.8 MMBtu
Annual Dollar SAVINGS= 50.8 MMBtu/yr x $16.00/MMBtu = $812.80 on EACH 6-inch valve/yr