SA214 Stainless Steel Bent Evaporator OD 19mm Welded Fin Tubes
| Product Details |
| Material: | Carbon Steel , Alloy Steel, Heat Resistant Steel,
Stainless Steel etc. |
| Tube details: | 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. |
| Production Capacity: | Daily production capacity up to 40 tons; |
| HFW Fin type: | solid plain and serrated. |
P235 GH TC1/2 SMLS Carbon Steel Tube, Welded Helical Bent Evaporator Fin Tube
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.
Acceptance Criteria:
INTERNATIONAL STANDARD FOR DIMENSIONS, TOLERANCES, AND TESTS OF HIGH FREQUENCY RESISTANCE WELDED FINS or the delivery conditions (TDC) of clients.
Tube End Finish:
Bevel @ (30°~35°)
Bevel Root Size
0.5mm~1.5mm
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.
Documentation:
It shall include QAP, WPS, PQR& WPQ, raw materials mill certificates, inspection and test samples results and warranty certificate of manufacturer.
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. |
| Our Service |
| 1 | Inquiry-Professional quotation, or send inquiry item more details, we start contact more details |
| 2 | Confirm the price, lead time, payment term etc |
| 3 | Our sales send the Proforma Invoice with our seal, or you order online to us |
| 4 | Customer make the payment for deposit and send us Bank receipt |
| 5 | Intial Production Stage-Inform the clients that we habe got the payment, and will make the samples according to your request, send you photos or samples to get your approval. After approval, we inform that we will arrange the production & inform the estimated time |
| 6 | Middle Production-send photos to show the production line which you can see you products. Confirm the estimated delivery time again. |
| 7 | End Production-Mass production products photos and samples will send to you for approval. You can also arrange the third party inspection |
| 8 | Clients make payment for balance and ship goods, inform the tracking number and check the status for clients |
| 9 | Order can be say "finish" when you receive the goods and satify with them |
| 10 | Feedback to our about Quality, Service, Market Feedback & Suggestion. And we can do better |
