13
Parker Hannifn Corporation
Parfex Division
Ravenna, OH
Catalog Number 4200-M-2
Chemical Processing and Refneries
Part
Number
Process Tube
O.D.
Tracer Tube
O.D.
Heat Loss
(BTU/hr ft-°F)
(DT = 100°F)
Temperature
Run Length (ft.)
Correction Factor
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
P
T
Q
Heavy Steam Trace Performance Chart
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
Part
Number
Process
Tube O.D.
(in.)
Tracer
Tube O.D.
(in.)
Nominal
Product
O.D. (in.)
Product
Weight
(lbs./ft.)
Minimum
Bend
Radius (in.)
Horizontal/Vertical
Support Centers (ft.)
Slope
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'
P
T
lbs
Installation Guide— Heavy Steam Trace