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DELLOK HRSG Boiler Fired Heater Helical 0.8mm Welded Fin Tubes

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DELLOK HRSG Boiler Fired Heater Helical 0.8mm Welded Fin Tubes
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Features
Specifications
Tube OD:: 19mm Min.
Fins Type: Solid/Plain,Serrated,Radial
Tube Length:: 18 Meters Max.
Fin Height:: 32mm Max.
Fin Thickness:: 0.8mm Min
Fin Pitch:: Min. 4 Mm For Solid Fins & 3.3mm For Serrated Fins.
High Light:

Serrated 0.8mm Welded Fin Tubes

,

0.8mm Helical Finned Tube

,

32mm Welded Fin 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

HRSG Boiler Fired Heater Helical 0.8mm Welded Fin Tubes

 

SA192 Carbon Steel Tube , Welded Helical Steel Fin Tube for HRSG Boiler

 

Application: Seamless Carbon Steel Boiler Tubes For High-Pressure Service.

 

Quick Detail:

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

 

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.

 

Additional Services for Solid helical welded fin tubes:

  1. High frequency welding machine output power supply: 200KW or 300KW

  2. The High Frequency Resistance Welded Spiral Fin Tube quality is assured by hydrostatic or pneumatic tests and tensile tests in order to verify the mechanical bonding between bare tube and fin materials.

  3. Acceptance criteria: INTERNATIONAL STANDARD FOR DIMENSIONS, TOLERANCES, AND TESTS OF HIGH FREQUENCY RESISTANCE WELDED FINS or the delivery conditions (TDC) of clients.

  4. Visual check: un-welded parts of fin, fin damage after fining, copper pollution, tears, wrap etc…

  5. Dimensional check: fin height, fin spacing, fin inclination, fin corrugation, length of finned & un-finned portion etc…

  6. Bending check: ovality, thickness and area reduction.

  7. Coating: outside-Red oxide zinc phosphate primer and inside volatile corrosion inhibitor (VCI) in water soluble tablet form.

  8. Fin end finish: Bevel(30~35degeree)

  9. Delivery condition: Tube ends are square cut, free burrs, internally dried and air blown clean, externally coated with varnish at both ends of helical welded tubes. The desiccants are put into the each package for continental transportation as well.

  10. Documentation shall include QAP, WPS, PQR& WPQ, raw materials mill certificates, inspection and test samples results and warranty certificate of manufacturer.

 

 

 

 

Quick Details

Condition:

New

Brand Name:

YONGHUI

Place of Origin:

China

Material:

Carbon, stainless, and alloy steels.

Fin Height:

32 mm max.

Fin Thickness:

0.8mm min

Fin Pitch:

min. 4 mm for solid fins & 3.3mm for serrated fins.

Tube Length:

18 meters max.

Tube OD:

19mm min.

Production Capacity:

Daily production capacity up to 40 tons;

Packing:

Steel frame with plywoods or seaworthy wooden box.

Marketing Type:

New Production 2020

Warranty:

1 Year

After Warranty Service:

Online support

Machinery Test Report:

Provided

Certification:

CE. ISO,EN10204. 3.1 Cert.

After-sales Services:

Video technical support, Online support

Showroom Location:

None

Local Service Location:

None

 

 

 

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 HRSG Boiler Fired Heater Helical 0.8mm Welded Fin Tubes 0DELLOK HRSG Boiler Fired Heater Helical 0.8mm Welded Fin Tubes 1DELLOK HRSG Boiler Fired Heater Helical 0.8mm Welded Fin Tubes 2

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Get in touch with us
Contact Person : Pax Yang
Tel : +862569521609
Fax : 86-25-6952-5709
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