No. 9a base-ray, I=b=r ratings – Burnham BASE-RAY 81441001R8-3/06 User Manual
Page 2
2
For Ratings at the following temperatures, multiply the 150° rating by the multiplier of the desired temperature.
No. 9A Base-Ray
®
I=B=R Ratings
– Steam and Hot Water (500 LBS/HR Flow Rate **)
I=B=R Ratings are determined from tests
made in accordance with the I=B=R Testing
and Rating Code for Baseboard Type of
Radiation, including an allowance of 15% for
heating effect permitted by the Code.
Ratings based on active length. Active length
same as total length.
**The Hot Water Ratings at 500 lb. Flow Rate are based on a standard water À ow rate of 500
lbs. per hour (one gallon per minute) through the Base-Ray. These ratings should be used for all
installations except as noted under 2000 Lb. Flow Rate.
*Add ½" to length for each bushing. Add 5" to length for each valve enclosure.
***Based on ¾" pipe connections.
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Temperature – Multiplier
150° - 1.0
140° - .82
130° - .68
120° - .54
110° - .42
100° - .32