Home Companies Dellok Yonghui Radiating Pipe Manufacturing Co.,Ltd.

DELLOK Helical Heat Exchanger serrated 0.8mm Round Steel Tubing

Dellok Yonghui Radiating Pipe Manufacturing Co.,Ltd.

Contact Us

[China] country

Trade Verify

Address: No.20 Xinghuo Road,Nanjing,Jiangsu,China

Contact name:Brian Wanqian

Inquir Now

Dellok Yonghui Radiating Pipe Manufacturing Co.,Ltd.

Verified Suppliers
  • Trust
    Seal
  • Verified
    Supplier
  • Credit
    Check
  • Capability
    Assessment

DELLOK Helical Heat Exchanger serrated 0.8mm Round Steel Tubing

Country/Region china
City & Province nanjing jiangsu
InquireNow

Product Details

Helical Heat Exchanger Serrated 0.8mm Round Steel Tubing

 

Product Details
Tube details: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.
Production Capacity:Daily production capacity up to 40 tons;
HFW Fin type:solid plain and serrated.
 
SA179 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.

 

Description:

General Manufacturing Process: 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.

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.

Applications:

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….

 

Specifications:

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

ItemsGeneral MaterialsPopular 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 RangeSolid fins(mm)Serrated fins
MinMaxMinMax
Tube OD(mm)1921919219
Fin Height(mm)826832
Fin Thickness(mm)0.82.811.6
Fins Density(mm)4(250FPM)203.3(303FPM)20
Tube Length(mm)N/A18000N/A18000

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.

 

Our Service:

1. Inquiry-Professional quotation, or send inquiry item more details

2. Confirm the price, lead time, payment term etc

3. Proforma Invoice send or online

4. Make the samples according to your request, send you photos or samples, arrange the production

5. Send the production line photos Confirm the estimated delivery time again.

6. End Production-Mass production products photos and samples will send to you for approval.

7. Inform the tracking number and check the status for clients

8. Order can be say "finish" when you receive the goods and satisfy with them

9. Feedback to our about Quality, Service, Market Feedback & Suggestion. And we can do better

 

Hot Products

Helical Heat Exchanger Serrated 0.8mm Round Steel Tubing Product Details Tube details: Tube OD: 19mm ...
Wrapped Tension Corrugated 25.4mm Galvanised Steel Pipe Galvanized steel sheet spacer rings for ...
DELLOK ASTM A53 Hot Dip Galvanized Liner Pipe Rolled Grooved Galvanized Steel Pipe Quick Details ...
3.8m Length Tube ASTM B171M Hot Rolled Steel Plate Description: Copper alloy tube sheet; ASTM B171...
DELOK Heat exchanger spare parts Elliptical Fin Tube About us DELLOK (YONGHUI RADIATING PIPE ...
DELLOK Efficiency Heat Exchanger Fin Tube with Tube Support Box 90° Elbow 12-24 Fins About us DELLOK ...