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Brazil---AimeeIn the latest vendor rating, TOBO won the excellent rating, it is good, will continue to cooperate. -
Thailand ---Dave MulroyASTM A213 T9 Alloy steel pipe ,Stable quality , good price, excellent serive, TOBO GROUP is our trustworthy partner .
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USA ---AlfaroASTM A182 F55 Super Duplex Flange ,Good quality , we like that ! And delivery time in time also ,very professional.
A105 150lb Dn300 Sliver Carbon Steel Class 300Rf Flat Welding Flange
| Place of Origin | China |
|---|---|
| Brand Name | TOBO |
| Certification | SGS/BV/ABS/LR/TUV/DNV/BIS/API/PED |
| Model Number | TOBO028 |
| Minimum Order Quantity | 1PC |
| Price | Negotiation |
| Packaging Details | In wooden case, pallets or as per customers’ requirement |
| Delivery Time | 15 working days |
| Payment Terms | L/C, T/T |
| Supply Ability | 100000PC/MONTH |
Product Details
| Standard Or Nonstandard | Standard | Product Name | Flange |
|---|---|---|---|
| Product Type | Flat Flange | Delivery Time | 15 Working Days |
| Thickness | Sch10 | Certification | SGS/BV/ABS/LR/TUV/DNV/BIS/API/PED |
| Price | Negotiation | Material | Stainess Steel 304/304L |
| Highlight | 150lb carbon steel welding flange,DN300 Class 300RF flange,silver forged steel flat flange |
||
Product Description
A105 150lb Dn300 Sliver Carbon Steel Class 300Rf Flat Welding Flange
Common types of pipeline flange faces
Flanges provide the necessary connections to link pipelines. Faces are the mating surface of a flange.Different types of flange faces are used as the contact surfaces to seat the sealing gasket material. ASME B16.5 and B16.47 define various types of flange facings, including the raised face, the large male and female facings which have identical dimensions to provide a relatively large contact area.Flange faces have to be smooth enough to ensure a tight, leak-free seal for bolted flanges.
Materials for Flanges
Pipe flanges are manufactured in all the different materials like stainless steel, cast iron, aluminium, brass, bronze, plastic etc. but the most used material is forged carbon steel and have machined surfaces.
In addition, flanges, like fittings and pipes, for specific purposes sometimes internally equipped with layers of materials of a completely different quality as the flanges themselves, which are "lined flanges".
The material of a flange, is basically set during the choice of the pipe, in most cases, a flange is of the same material as the pipe.
All flanges, discussed on this website fall under the ASME en ASTM standards, unless otherwise indicated. ASME B16.5 describes dimensions, dimensional tolerances etc. and ASTM the different material qualities.
The most used flange types are:
Bolted Flange connections
A bolted flange connection is a complex combination of many factors (Flange, Bolts, Gaskets, Process, Temperature, Pressure, Medium). All these various elements are interrelated and depend upon one another to achieve a successful result.
The reliability of the flanged joint depends critically upon competent control of the joint making process.
Some other Disadvantages of flange connections..
- Each flange connection can leak (some people claim that a flange connection is never 100 percent leak proof).
- Flanged pipe systems need much more space (just think of a pipe rack).
- Insulation of flanged pipe systems is more expensive (special flange caps).
Of course, flange connections have great benefits; some examples..
- A new line can contain multiple pipe spools and can be manufactured in a workshop.
- This pipe spools can be assembled in the plant without the need to be welded.
- NDO (X-ray, Hydro test etc.) in the plant is not necessary, because this has been done in the workshop.
- Blasting and painting in the plant is not necessary, because even this has been done in a workshop
(only paint damages during installation should be repaired). - FAQ
Q1. Are you trade company or factory?
A: We are trading company in shanghai, but we have five branch factories which can supply the best quality pipes, tubes, fittings flanges and related accessories. Welcome to visit us.
Q2: Do you provide free samples? If not, how do you charge for it?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q3. What can you buy from us?
A. The main forgings are the design forging processing of mechanical parts for automobiles, railroad forgings, agricultural machinery forgings,hole forging of valve body, connecting nut of oil pipeline, rigging ect.
Q4. Why is forged metal stronger than cast or machined metal?
This stems from the grain flow caused through forging. As the metal is pounded the grains deform to follow the shape of the part, thus the grains are unbroken throughout the part. Some modern parts take advantage of his for a high strength-to-weight ratio
Q5. How long is your delivery time?
A. Lead time is about 10-25 days. Orders with numerous kinds of parts will take more days.
Customers at home and abroad are welcome to write and talk about business.
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