H finned tube is called square finned tube, there are two types of H finned tube, one is a single tube, usually called square finned tube, the other is a double tube, usually called rectangular finned tube. And according to customer requirements manufacturing. Due to its rectangular shape, it provides a larger surface area than spiral finned tubes. Because of the larger surface area available, these finned tubes are primarily used in air heating applications to reduce the overall size of the equipment.
H-shaped finned tubes have a high area expansion rate, less dust accumulation, and high heat transfer efficiency. In the case of equivalent heat transfer capacity, the heat exchanger can occupy the smallest space, and can minimize high-grade materials (ie, pressure tubes) The amount of use, and more use of low-grade materials,( 1919113,fins). For new engineering projects, the height of the heat exchanger arrangement can be reduced, the overall weight is greatly reduced, the load of the suspension system is reduced, and the overall cost is reduced; for the renovation project, as much heat exchange area as possible can be arranged in a limited space to reduce the exhaust temperature , Improve the efficiency of waste heat recovery or increase the maintenance space for easy maintenance.
H/HH Type Fin Tube,Square Steel Pipe,Seamless Square Tubing,Square Galvanized Pipe,Seamless Square Steel Tube Murphy Thermal Energy Co., Ltd. , https://www.murphyfinnedtube.com
Production enforce standard
Design and Manutacture
Face to face
Flange Dimension
Butt welding
Inspection and test
ANSIÂ B16.34/BS1873
ANSIÂ B16.10
ANSIÂ B16.5
ANSIÂ B16.25
APIÂ 598
Chief property and specification
Â
Â
Â
Normal Pressure
Shell test
Water seal test
Air seal test
Â
Â
Â
LB
Mpa
Lbf/in²
Mpa
Lbf/in²
Mpa
Lbf/in²
Â
Â
Â
150
3.1
450
2.2
315
0.5-0.7
60-100
Â
Â
Â
300
7.8
1125
5.6
815
Â
Â
Â
600
15.3
2225
11.2
1630
Â
Â
Â
900
23.1
3350
16.8
2440
Â
Â
Â
1500
38.4
5575
28.1
4080
Â
Â
Â
2500
64.6
9367
47.4
6873
Â
Â
Â
Material for main parts
Body/Cover/Disc
Stem
Sealing Face
Sealing shim
Packing
Suitable medium
WCB
2Â CR13
13Cr
STL
with bodyÂ
materialÂ
PTFEÂ Nylon13Cr/EnhancedÂ
Flexible 1Cr13
/Flexible graphiteÂ
SFB-208 Soft steelÂ
F304Â
F316
F304L
F316LFlexible graphiteÂ
Enhanced FlexibleÂ
graphiteÂ
SFB/260SFP/
260PTFEWater
Steam
Petroleum
Products
WC1
38CrMoAl
25Cr2MovWC6 WC9 C5Â C12
CF8
F304
Nitric acid
Aceic acid
CF3
F316
CF8M
F304L
CF3M
F316L
Main external and connection dimension
Size
L
D
D1
D2
b
z-d
Do
H(open)
2
in
7
6
4.75
3.62
0.75
4-0.75
8
16.1
mm
178
152
120.5
92
19.1
4-19
200
409
3
in
8
7.5
6
5
0.94
4-0.75
10
20
mm
203
90
152.5
127
23.9
4-19
250
570
4
in
9
9
7.5
6.19
0.94
8-0.75
10
23.2
mm
229
229
190.5
157
23.9
8-19
250
590
6
in
10.5
11
9.5
8.5
1
8-0.88
12
24.8
mm
267
279
241.5
216
25.4
8-22
300
630
8
in
11.5
13.5
11.75
10.62
1.12
8-0.88
13.88
37.8
mm
292
343
298.5
270
28.5
8-22
350
960
10
in
13
16
14.25
12.75
1.19
12-1
15.7
45.6
mm
330
406
362
324
30.2
12-25
400
1158
12
in
14
19
17
15
1.25
12-1
17.7
5430
mm
356
483
H/HH Type Fin Tube
Water Flanged Stainless Steel Gate Valve of 300lb 6 Inch
Model NO.: ZFS03
Thread Position of Valve Rod: Inside Gate Valve
Usage: Regulation, Safety, Emptying, Drain, Flow Control
Standard: ANSI
Application: Industrial Usage, Water Industrial Usage, Household Usage
Body Material: Wcb/CF8/CF8m
Bonnet Material: Wcb/CF8/CF8m
Sealing Material: 2Cr13/Stl+PTFE
Sealing Shim: 2Cr13/Stl+PTFE
Stem Material: Wcb/CF8/CF8m
Packing Material: Flexible Graphite
Testing: API 598
Certificate: Ce/ISO/API
Face to Face: ANSI B16.10
Flange Standard: ANSI B16.10
Trademark: ITSEN
Transport Package: Plywood Cases/Pallets
Specification: DN50-DN600
Origin: Shandong, China
HS Code: 8481804090