Page 12 - Parker - Energy Products Division - Multitube (Instrument and Heat Trace Tubing Products)
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Chemical Processing and Refineries Catalog Number 4200-M-2
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Light Steam Trace Performance Chart
Process Tracer Tube Heat Loss Temperature Run Length
Part Tube O.D. (in.) O.D. (BTU/hr ft-°F) (ft.)
Number (in.) (DT = 100°F)
Q Correction Factors
P T
Light Trace – Single Process Tube
LT-20435A-10430 1/4 1/4 10.9 1 1
LT-20635A-10430 3/8 1/4 10.9 0.97 0.9
LT-20835A-10430 1/2 1/4 10.9 0.95 0.8
LT-20635A-10632 3/8 3/8 13.7 – –
LT-20835A-10632 1/2 3/8 13.7 1.07 1.44
Light Trace – Dual Process Tube
LT-20435B-10430 (2) 1/4 1/4 10.9 – –
LT-20635B-10430 (2) 3/8 1/4 10.9 – –
LT-20835B-10430 (2) 1/2 1/4 10.9 – –
LT-20635B-10632 (2) 3/8 3/8 13.7 1 1
LT-20835B-10632 (2) 1/2 3/8 13.7 0.98 0.9
®
LT—Light 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— Light Steam Trace
Process Tube Tracer Tube Nominal Product Minimum Bend Horizontal/
Part O.D. (in.) O.D.(in.) Product O.D. Weight Radius Vertical lbs
Number (in.) (lbs./ft.) (in.) Support
Slope
Centers (ft.)
P T
lbs
Welded Copper
Stainless*
Light Trace-Single Process Tube
LT-20435A-10430 1/4 1/4 1.3 .385 10 5-6' 10-15' 1" in 8'
LT-20635A-10430 3/8 1/4 1.4 .453 12 5-6' 10-15' 1" in 6'
LT-20835A-10430 1/2 1/4 1.5 .519 14 5-6' 10-15' 1" in 3'
LT-20635A-10632 3/8 3/8 1.5 .531 12 5-6' 10-15' 1" in 7'
LT-20835A-10632 1/2 3/8 1.6 .598 14 5-6' 10-15' 1" in 6'
Light Trace-Dual Process Tube
LT-20435B-10430 (2) 1/4 1/4 1.3 .473 14 5-6' 10-15' 1" in 8'
LT-20635B-10430 (2) 3/8 1/4 1.5 .599 15 5-6' 10-15' 1" in 6'
LT-20835B-10430 (2) 1/2 1/4 1.6 .778 16 5-6' 10-15' 1" in 3'
LT-20635B-10632 (2) 3/8 3/8 1.6 .675 16 5-6' 10-15' 1" in 7'
LT-20835B-10632 (2) 1/2 3/8 1.7 .803 18 5-6' 10-15' 1" in 6'
*Available in seamless stainless steel and other alloys
Parker Hannifin Corporation
9 Energy Products Division 10
