Page 16 - Parker - Energy Products Division - Multitube (Instrument and Heat Trace Tubing Products)

Chemical Processing and Refineries Catalog Number 4200-M-2

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Heavy Steam Trace Performance Chart

Heat Loss
Part Process Tube Tracer Tube (BTU/hr ft-°F) Temperature Run Length (ft.)
Number O.D. O.D. (DT = 100°F)
Q
Correction Factor
P T

Heavy Trace-Single Process Tube
HT-20435A-10430 1/4 1/4 15.3 1 1
HT-20635A-10430 3/8 1/4 18.3 0.995 0.85
HT-20835A-10430 1/2 1/4 20.7 0.99 0.76
HT-20635A-10632 3/8 3/8 19.9 1.06 2.09
HT-20835A-10632 1/2 3/8 23.1 1.04 2.05
Heavy Trace-Dual Process Tube
HT-20435B-10430 (2) 1/4 1/4 18 -- --
HT-20635B-10430 (2) 3/8 1/4 21.9 -- --
HT-20835B-10430 (2) 1/2 1/4 25.8 -- --
HT-20635B-10632 (2) 3/8 3/8 25.8 1 1
HT-20835B-10632 (2) 1/2 3/8 27.7 0.996 0.90

HT—Heavy Steam Trace performance graphs are based upon a 1⁄4” process tube and a 1⁄4” tracer tube. Temperature and run length
correction factors for other sizes can determine using the chart provided

Installation Guide— Heavy Steam Trace

Process Tracer Nominal Product Minimum Horizontal/Vertical
Part Tube O.D. Tube O.D. Product Weight Bend Support Centers (ft.) Slope
Number (in.) (in.) O.D. (in.) (lbs./ft.) Radius (in.)

lbs
P T
Heavy Trace – Single Process Tube
HT-20435A-10430 1/4 1/4 1.1 .376 8 5-6' 10-15' 1" in 8'
HT-20635A-10430 3/8 1/4 1.3 .446 10 5-6' 10-15' 1" in 6'
HT-20835A-10430 1/2 1/4 1.4 .520 12 5-6' 10-15' 1" in 3'
HT-20635A-10632 3/8 3/8 1.3 .526 12 5-6' 10-15' 1" in 7'
HT-20835A-10632 1/2 3/8 1.5 .594 14 5-6' 10-15' 1" in 6'
Heavy Trace – Dual Process Tube

HT-20435B-10430 (2) 1/4 1/4 1.2 .479 12 5-6' 10-15' 1" in 8'
HT-20635B-10430 (2) 3/8 1/4 1.4 .608 13 5-6' 10-15' 1" in 6'
HT-20835B-10430 (2) 1/2 1/4 1.6 .743 13 5-6' 10-15' 1" in 3'
HT-20635B-10632 (2) 3/8 3/8 1.5 .682 13 5-6' 10-15' 1" in 7'
HT-20835B-10632 (2) 1/2 3/8 1.7 .812 14 5-6' 10-15' 1" in 6'

Parker Hannifin Corporation
13 Energy Products Division 14