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Gunning
Heating Products
Spirally Wound all Steel Gilled/Finned Tube
(Previously Manufactured By MYSON Eng Co Ltd.)
Special Features
* Sizes 1/2" to 4" Nominal Bore.
* Medium or Heavy Weight Tube.
* Manufactured from Steel Tube to B.S.1387..
* All steel continous gilling.
* Plain, Screwed or Reduced ends.
* Black Air drying, Powder Coat or pre-galvanised finish.
* Hot dip-galvanise also available.
* Perfect mechanical bonding of gills onto pipe.
* Any length up to 20 ft (10 ft lengths recommended for easy handling).
Gunning all-steel Gilled Tube provides the perfect all-purpose extended
surface Heat Transfer medium of great strength to withstand all nominal
system temperatures and pressures.
Method of Manufacture
Gunning Steel Gilled Tube is manufactured in our own works by special purpose
machines which wind the strip on to the tube in a continous spiral under
considerable tension,leaving the fin of semi-flat profile, and having a
regular crimped contact area, resulting in a perfect mechanical bond with
excellent heat transfer from tube to fin.This will not deteriorate or loosen
even in the most severe of conditions.
The fin, having a crimped inner diameter, offers a contact area to the tube
equivalent to the outside diameter of the fin. The fins are welded to the tube
at each end of the tube.
Gunning Spirally Wound Tube can be supplied in straight lengths up to 20ft.
Consideration should be given to length limitations however, to ease
transportation and site handling.
As standard, a 2 1/2" minimum length of ungilled tube is left at each
end for welding, alternatively screwed B.S.P. thread or flanges can be
provided to suit customers requirements.
Class of Tube
Standard steel tubes to B.S.1387 are used in the manufacture which can be of
Medium or Heavy weight quality and only specially selected gilling tape
manufactured within close specification limits is used to guarantee perfect
bonding and strength.
Lengths are sold subject to a working pressure recommended for the
appropriate B.S.S. for that class of tube.
Finish
Air Drying Matt Black Paint (NOT RECOMMENDED WHEN ON DISPLAY).
Powder Coated to any RAL Colour.
Hot dip Galvanized after manufacture.
Pre-Galvanized tube and tape.
For other finishes please enquire direct with our works.
Gilled Tube Output Table
|
|
Tube
Nominal
Bore
|
Height
of
Fins
|
Overall
Dia of
Gills
|
Surface
Area
Sq. Ft.
Per Ft.
Run
|
Fins
Per
Inch
|
OUTPUT
180F/160F
82C/71C
At 70F Ambient
|
WEIGHT
|
|
|
B.T.U.s
Per Ft
|
Watts
Per Mtr
|
Lbs
Per Ft
|
Kgs
Per Mtr
|
|
|
1/2"
15mm
|
1/2"
12.7mm
|
1 3/4"
45mm
|
3.49
3.07
2.55
2.11
|
7
6
5
4
|
330
290
240
200
|
316
277
230
192
|
2.16
2.10
1.89
1.67
|
3.21
3.12
2.81
2.48
|
|
|
3/4"
20mm
|
1/2"
12.7mm
|
2"
51mm
|
4.06
3.52
2.98
2.44
|
7
6
5
4
|
385
335
284
230
|
368
320
272
220
|
3.26
3.06
2.86
2.60
|
4.95
4.55
4.25
3.20
|
|
|
1"
25mm
|
3/4"
19mm
|
2 3/4"
70mm
|
7.94
5.90
4.82
3.70
|
6
5
4
3
|
670
560
455
350
|
640
535
435
335
|
5.006
4.36
4.00
3.20
|
7.44
6.49
5.95
4.76
|
|
|
1 1/4"
32mm
|
3/4"
19mm
|
3 5/32"
80mm
|
7.94
6.70
5.45
4.20
|
6
5
4
3
|
750
635
518
400
|
718
608
496
382
|
6.05
5.40
4.75
4.10
|
9.00
7.90
7.10
6.10
|
|
|
1 1/4"
32mm
|
1"
25.4
|
3 5/8"
93mm
|
7.12
5.45
|
4
3
|
670
513
|
640
490
|
5.30
4.50
|
7.88
6.70
|
|
|
1 1/2"
40mm
|
3/4"
19mm
|
3 3/8"
86mm
|
8.53
7.19
5.85
4.51
|
6
5
4
3
|
810
680
555
429
|
775
650
530
410
|
7.35
6.26
5.50
4.75
|
10.47
9.31
8.18
7.07
|
|
|
1 1/2"
40mm
|
1"
25.4mm
|
3 7/8"
98mm
|
7.61
5.84
4.07
|
4
3
2
|
725
559
387
|
690
530
370
|
5.86
4.99
4.12
|
8.70
7.40
6.12
|
|
|
2"
50mm
|
3/4"
19mm
|
3 7/8"
98mm
|
6.70
5.18
3.66
|
4
3
2
|
635
490
335
|
608
470
320
|
7.00
6.10
5.20
|
10.42
9.08
7.74
|
|
|
2"
50mm
|
1"
25.4mm
|
4 3/8"
111mm
|
8.72
6.70
4.68
|
4
3
2
|
825
575
410
|
785
550
391
|
7.53
6.50
5.47
|
11.20
9.65
8.20
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|
|
2 1/2"
65mm
|
3/4"
19mm
|
4 1/2"
114mm
|
7.85
6.07
4.31
|
4
3
2
|
747
576
410
|
710
553
392
|
10.00
8.62
7.24
|
14.90
12.80
10.80
|
|
|
2 1/2"
65mm
|
1"
25.4mm
|
5"
127mm
|
10.20
7.83
5.48
|
4
3
2
|
969
743
520
|
930
710
475
|
11.88
9.94
8.20
|
17.70
14.80
12.20
|
|
|
3"
80mm
|
3/4"
19mm
|
5"
127mm
|
8.75
6.64
4.84
|
4
3
2
|
830
630
460
|
735
602
440
|
12.20
10.95
9.70
|
18.20
16.30
14.40
|
|
|
3"
80mm
|
1"
25.4mm
|
5 1/2"
140mm
|
11.36
8.55
6.15
|
4
3
2
|
1080
810
594
|
1037
775
557
|
14.57
13.71
11.54
|
21.30
18.90
16.50
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|
|
4"
100mm
|
1"
25.4mm
|
6 1/2"
165mm
|
14.78
11.38
7.98
|
4
3
2
|
1404
1081
758
|
1350
1039
728
|
17.43
15.13
12.85
|
25.94
22.52
19.14
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NB. We do not
recommend over 4 FPI when used in free air.
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© Copyright 1999, Gunning Engineering Ltd,
contact Web-Manager@Gunning Heating
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