Send Message

DELLOK T91 Alloy Steel Economizers HF Hairpin Spiral Welded Steel Pipe

N/A Contact us for details
MOQ
N/A Contact us for details
Price
DELLOK T91 Alloy Steel Economizers HF Hairpin Spiral Welded Steel Pipe
Features Gallery Product Description Request A Quote
Features
Specifications
Fin Tube Type: High Frequency Welded Fin Tube Or HF Welding Fin Tube
Tube OD:: 19mm Min.
Tube Length:: 18 Meters Max.
Fin Height:: 26 Mm Max.
Fin Thickness:: 0.8mm Min
Fin Pitch:: Min. 4 Mm For Solid Fins & 3.3mm For Serrated Fins
High Light:

HF Hairpin Spiral Welded Steel Pipe

,

T91 Spiral Welded Stainless Steel Pipe

,

HF Hairpin Welded Finned Tubes

Basic Infomation
Place of Origin: China
Brand Name: DELLOK
Certification: CE. ISO,EN10204. 3.1 Cert.
Model Number: HFW
Payment & Shipping Terms
Packaging Details: (1) Waterproof steel frame bundle package;(2)Steel frame case sealed by plywoods with each end capped.
Delivery Time: Ex-work within 1 month on recepit of order.
Payment Terms: L/C, T/T Contact us for details
Supply Ability: 60000 meters month
Product Description

T91 Alloy Steel Economizers HF Hairpin Spiral Welded Steel Pipe

 

A213 T91 Alloy Steel Tubes , HF Welded Hairpin Spiral Fin Tube For Economizers

ASTM A213 / A213M:Seamless Ferritic & Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes

Quick Detail:
High Frequency Resistance Welded Helical Steel Fin Tubes is widely used in the recovery of waste heat from boiler flue gas.

General specifications of HF welding fin tube

Tube OD: 19mm min.
Tube Length: 18 meters max.
Fin Height: 32 mm max.
Fin Thickness: 0.8mm min
Fin Pitch: min. 4 mm for solid fins & 3.3mm for serrated fins.

General HF welding production capacity

Welding Facility: 4 finning machines;
Daily production capacity up to 40 tons;
HFW Fin type: solid plain and serrated.

 

Introduction:
High Frequency Resistance Welded Helical Steel Fin Tubes is widely used in the recovery of waste heat from boiler flue gas.The fin strip is welded continuously and spirally wound onto a polished bare tube. And the tube and fins are bonded together by using high frequency resistance welding technique. All of them are outside-Red oxide zinc phosphate primer and inside volatile corrosion inhibitor (VCI) in water soluble tablet form. Its suits various area such as The High Frequency Resistance Welded Helical Fin Tubes are widely applied in fired heaters, heat exchanger, boilers, economizers, pre-heaters, coolers, heat pipes, heaters etc….

We produce both solid plain and serrated helical welded steel finned tube. And also, all spiral welding tubes could be bent in the middle or at the end of fin tubes, we call it Hairpin tubes.

 

Check:
Visual check:
Un-welded parts of fin, fin damage after fining, copper pollution, tears, wrap etc…
Dimensional check:
Fin height, fin spacing, fin inclination, fin corrugation, length of finned & un-finned portion etc…
Bending check:
Ovality, thickness and area reduction.


Specifications:
A wide range of fin and tube materials could be combinations are available.

Items

General Materials

Popular ASTM Materials

Core Tube Material

Carbon Steel , Alloy Steel, Heat Resistant Steel,
Stainless Steel etc.

10#,20#,15CrMo,Cr5Mo,Cr9Mo,1Cr18Ni9Ti,0Cr18Ni9, 00Cr17Ni14Mo2,SA106B,SA106C, SA192, SA179,
SA178,SA214, SA210-A1, SA210-C,TP304/304L/304H, TP409/410,TP316/316L,TP321/321L,TP347H,T11,T22,T91,etc.

Fins Material

Carbon Steel , Alloy Steel, Heat Resistant Steel,
Stainless Steel etc.

Q235-BF,08F,08AL, 1Cr18Ni9Ti, 0Cr13, 1Cr13, 0Cr18Ni9, 09CrCuSb, CS,A1008-B,SPHC, SPCC, TP304/304L,TP316/316L,TP321/321L,etc.


Dimensions Data Sheet We Can Supply.

Solid Helical Steel Fin Tubes Fabrication Range

Solid fins(mm)

Serrated fins

Min

Max

Min

Max

Tube OD(mm)

19

219

19

219

Fin Height(mm)

8

26

8

32

Fin Thickness(mm)

0.8

2.8

1

1.6

Fins Density(mm)

4(250FPM)

20

3.3(303FPM)

20

Tube Length(mm)

N/A

18000

N/A

18000

Additional supply range :
(1) Tube swaging process for joint of 2 tubes.
(2) Spacer rings (material: steel) are available.
(3) One side is solid plain fins and the other is serrated fins, 2 fin types on same tube.


Competitive Advantage:

  1. We have more than 10,000 square meters workshop, including 4 ERW high Frequency welding fining lines, daily production capacity around 40 Tons;

  2. Our quality assurance plan for High Frequency Welding Spiral Steel Tubes. (2.1) Raw material control for both plain tubes and fins. (2.2) In process control with reports,as WPS, PQR&WPQ; weld deposition efficiency test before fabrication, Non-destructive test and tensile test etc. (2.3) Final inspection control with reports (Visual and dimensional check etc…).

  3. The High Frequency Resistance Welded Fin Tube is integrally extended for the max surface area to achieve efficiency. The heat transfer ratio of high frequency welding fin tube is about 8~9 times higher than other plain tubes.

  4. This Welded Helical Fin Tubes is a singular integral unit, eliminating heat contact resistance and losses. Generally tube side temperature up to 800 degree for stainess steel fins; Low carbon steels, withstanding up to 475 degree is the most common choice.

DELLOK T91 Alloy Steel Economizers HF Hairpin Spiral Welded Steel Pipe 0DELLOK T91 Alloy Steel Economizers HF Hairpin Spiral Welded Steel Pipe 1DELLOK T91 Alloy Steel Economizers HF Hairpin Spiral Welded Steel Pipe 2

Recommended Products
Get in touch with us
Contact Person : Pax Yang
Tel : +862569521609
Fax : 86-25-6952-5709
Characters Remaining(20/3000)