
High Output Finned Pipe
Heating System
The DELTA-FIN™ aluminum finned pipe heating system heats the greenhouse
using water temperatures up to 230°F by heating the air around
the fin tube and distributing the heat via natural convection.
The high output finned pipe is made of sch 40 aluminum pipe and fins
that are twice as thick as standard base board radiators. This heavy
duty construction guarantees long life in a harsh environment and allows
the material to be hung from greenhouse columns spaced as far as twelve
feet apart without additional center support.
Placed around the perimeter or under the gutter, this material puts
out enough energy to heat a greenhouse range, melt snow from the gutters,
or can be used as supplemental heat when an under bench system is being
used.
Two sizes (1.25" and 2.0") allow for various design
considerations that might come up when designing long runs or small
temperature differentials
requiring high flow rates.
Grooved coupling technology absorbs enough expansion from the heated
aluminum pipe so that, in most installations, no special expansion
joints are required. Special fin configurations can be provided for
under gutter snow melt or corridor heating.
Typical fin spacing:
- 1.25" 48 fins/ft
- 2.0" 24 fins/ft
Some
of the many advantages of DELTA FIN™ SF are:
- Lightweight aluminum construction allows for hanging material
from columns or truss without special supports.
- Heavy duty fins able
to withstand high traffic areas.
- Rugged construction can be supported on 12 foot OC
brackets.
- Grooved coupling technology for easy installation.
- Requires NO threading or welding.
- Grooved coupling eliminates
expansion joints.
- High output per foot reduces need for multiple
tiers.
- Special fin spacing is available for optimum heat output.
Delta T Solutions can provide a performance engineered heating system
that can meet the needs of any grower. Performance packages include:
Heating system components (heat source, controls, radiation), performance
engineered drawings (pipe layouts
and electrical diagrams), installation supervision, installation (as
required).
Specifications:
The radiating material is the Delta Fin™ SF125 or SF200 aluminum
finned pipe, using water temperatures up to 230° F. and consists
of the following components:
- 1.25" sch 40 aluminum pipe with 3.25" X 3.25" X 0.025" aluminum
fins at 48 fin/foot. Pipe shall have each end grooved to accept the
grooved coupling provided.
- 2.0" sch 40 aluminum pipe with 4.25 inch X 4.25 inch X 0.025 inch
aluminum fins at 24 fin/foot. Pipe shall have each end grooved to
accept the grooved coupling provided.
- Coupling shall be grooved style with high temperature gasket rated
for -60°F to 230°F.
- Coupling and external grooved fin system absorbs expansion from
heated aluminum.
- All aluminum hanger brackers
- Pressure ratings of 125PSI at 230°F

| Delta Fin
SF Ratings |
| |
|
|
|
Hot Water Ratings BTU/HR./FT/ |
| Tube Size and Material |
Fin Size and Material |
Fins Per Foot |
No. of Tiers 7" cl |
Steam Rating |
130° |
140° |
150° |
160° |
170° |
180° |
| |
|
|
|
Factor |
0.33 |
0.40 |
0.45 |
0.53 |
0.61 |
1.69 |
| 1 1/4" Sch |
3 1/4" x 3 1/4" |
49 |
1 |
1850 |
610 |
740 |
830 |
9800 |
1130 |
1280 |
| 40 Alum. |
0.025" Alum |
|
2 |
2640 |
870 |
1060 |
1190 |
1400 |
1610 |
1820 |
| |
|
|
3 |
4200 |
1390 |
1680 |
1890 |
2230 |
2560 |
2900 |
| 2" Sch 40 |
4 1/4" x 4 1/4" |
24 |
1 |
1630 |
540 |
650 |
730 |
860 |
990 |
1120 |
| Alum |
0.025 Alum |
|
2 |
2330 |
770 |
930 |
1050 |
1230 |
1420 |
1610 |
| |
|
|
3 |
3700 |
1220 |
1480 |
1670 |
1960 |
2260 |
2550 |
| Delta Fin
SF Ratings |
| |
|
|
|
Hot Water Ratings BTU/HR./FT/ |
| Tube Size and Material |
Fin Size and Material |
Fins Per Foot |
No. of Tiers 7" cl |
Steam Rating |
190° |
200° |
210° |
220° |
230° |
240° |
| |
|
|
|
Factor |
0.78 |
0.86 |
0.95 |
1.05 |
1.14 |
1.25 |
| 1 1/4" Sch |
3 1/4" x 3 1/4" |
49 |
1 |
1850 |
1440 |
1590 |
1760 |
1940 |
2110 |
2310 |
| 40 Alum. |
0.025" Alum |
|
2 |
2640 |
2060 |
2270 |
2510 |
2770 |
3010 |
3300 |
| |
|
|
3 |
4200 |
3280 |
2610 |
3990 |
4410 |
4790 |
5250 |
| 2" Sch 40 |
4 1/4" x 4 1/4" |
24 |
1 |
1630 |
1270 |
1400 |
1550 |
1710 |
1860 |
2040 |
| Alum |
0.025 Alum |
|
2 |
2330 |
1820 |
2000 |
2210 |
2450 |
2660 |
2910 |
| |
|
|
3 |
3700 |
2890 |
3180 |
3520 |
3890 |
4220 |
4630 |
|