Products Description
Inconel625 Flange bellows compensator have always had an irreplaceable position in the pipeline industry. They are mainly used for the connection of pipelines, providing great convenience for the replacement and maintenance of pipelines. Bellows compensators are divided into two major types: flange bellows compensators and welded bellows compensators. Different types of bellows compensators correspond to different usage requirements in the pipeline industry. Bellows compensator is an indispensable part of the pipeline industry and provides great application value to the pipeline industry.

Products Specifications

Material component:
Molybdenum and niobium serve as the primary strengthening elements in the nickel-based, deformed, high-temperature Inconel 625 alloy, which is reinforced by solid solution. It exhibits superior resistance to oxidation and corrosion. It has good tensile properties and fatigue properties from low temperatures of 980°C, and is resistant to salt spray. Stress corrosion in atmosphere. Therefore, it can be widely used in manufacturing aerospace engine parts, aerospace structural components and chemical equipment.
Chemical component:
|
Elements |
% |
Ni |
Cr |
Mo |
Mn |
Cu |
Co |
Fe |
C |
Nb |
Al |
|
Standards |
min |
Rest |
20.0 |
8.0 |
-- |
-- |
-- |
-- |
-- |
3.15 |
-- |
|
max |
Rest |
23.0 |
10.0 |
0.5 |
0.07 |
1.0 |
5.0 |
0.10 |
4.15 |
0.4 |
Essential parameters:
|
Nominal diameter |
DN15-DN600mm |
|
Product length |
200mm-5000mm |
|
Nominal pressure |
0.3Mpa |
|
Operating temperature |
-196℃-450℃ |
|
Medium |
Liquid,Gas |
|
Flange standard |
ASTM B564 |
|
Bellows'thickness |
25 mm to 3500 mm (Depends on applicable) |
|
Color |
Silver (Customizable) |

Spec Chart of Alloy 625 Flanges:
|
Size Ranges |
From 1/2 inch (i.e. 15 NB) upto 48 inch (i.e. 1200NB) |
|
Specification |
ASTM B564/ ASME SB564 |
|
Grade |
625 |
|
Standards |
ASME | BS | DIN | ANSI | GOST | EN Flange |
|
JIS Standards |
5 K, 10K, 16K, 20 K, 30K, 40K, 63 K |
|
Flange Face Type |
FF, RF, LMF, SMF, RTJ, LJF. |
|
UNI/ DIN / EN Standard |
6Bar, 10 Bar, 16Bar, 25 Bar, 40Bar |
|
Pressure Classes |
Class 150, Cl 300, 400, Cl. 600, Cl 900, Class 1500 and 2500 |
Products values
1. The bellows compensator is made of metal and has high pressure resistance and expansion and contraction capabilities.
2. Simple to load and unload: The bellows compensator may be freely loaded and unloaded without postponing the product's secondary usage, which spares the pipeline industry needless costs.
3. The bellows compensator has good telescopic performance. Due to the weather or different uses of the product, some joints may crack and become unusable. The expansion and contraction performance of the bellows compensator just makes up for this.
4. The bellows compensator adopts a special design. Different bellows compensators are used for different needs of the pipeline, and fixed limit bolts are added to make the bellows compensator more reliable and durable.

Products Applications

Precautions when installing Inconel625 Flange bellows compensator


When choosing a metal hose, for ease of installation, please choose a metal hose with a loose flange at one end.
When performing electric welding operations at the construction site, the surface of the metal hose should be protected to prevent welding slag and arc burning of the metal hose.
It is strictly forbidden to twist the metal hose during installation.
The metal hose should not be bent along the root, and there should be no dead bends.
The bellows material must not be corroded by the passing medium, and the medium's chloride ion level must be less than 25 parts per million.
Strictly follow the correct installation method shown in the installation diagram.
It is strictly prohibited to mechanically damage the flange sealing surface.
Do not use chlorine-containing detergents or wire brushes to clean dirt in metal hoses.
Flange connection metal hose customization
When you need to order flange-connected metal hose, you need to provide us with the following parameters so that we can quote the product price as soon as possible:
1. Metal hose diameter and length;
2. Metal hose operating pressure;
3. Flange pressure level, material, and execution standards;
4. Operating temperature and medium;
5. Other special requirements.

Dimensions of Nickel Alloy 625 Slip On Flange:
|
Outside Diameter |
Min. Thickness |
RF Dia. |
No. of Bolt Holes |
Diameter of Holes |
Bolt Circle |
SO Bore ID |
Dia. Hub Base |
Dia. Hub Top |
SO LTH |
WN LTH |
* WN Bore ID |
||
|
1⁄2 |
3.75 |
0.56 |
1.38 |
4 |
0.63 |
2.62 |
0.88 |
1.5 |
0.84 |
0.88 |
2.06 |
* |
|
|
3⁄4 |
4.62 |
0.62 |
1.69 |
4 |
0.75 |
3.25 |
1.09 |
1.88 |
1.05 |
1.00 |
2.25 |
* |
|
|
1 |
4.88 |
0.69 |
2.00 |
4 |
0.75 |
3.50 |
1.36 |
2.12 |
1.32 |
1.06 |
2.44 |
* |
|
|
11⁄4 |
5.25 |
0.81 |
2.50 |
4 |
0.75 |
3.88 |
1.70 |
2.50 |
1.66 |
1.12 |
2.62 |
* |
|
|
11⁄2 |
6.12 |
0.88 |
2.88 |
4 |
0.88 |
4.50 |
1.95 |
2.75 |
1.90 |
1.25 |
2.75 |
* |
|
|
2 |
6.50 |
1.00 |
3.62 |
8 |
0.75 |
5.00 |
2.44 |
3.31 |
2.38 |
1.44 |
2.88 |
* |
|
|
21⁄2 |
7.50 |
1.12 |
4.12 |
8 |
0.88 |
5.88 |
2.94 |
3.94 |
2.88 |
1.62 |
3.12 |
* |
|
|
3 |
8.25 |
1.25 |
5.00 |
8 |
0.88 |
6.62 |
3.57 |
4.62 |
3.50 |
1.81 |
3.25 |
* |
|
|
31⁄2 |
9.00 |
1.38 |
5.50 |
8 |
1.00 |
7.25 |
4.07 |
5.25 |
4.00 |
1.94 |
3.38 |
* |
|
|
4 |
10.00 |
1.38 |
6.19 |
8 |
1.00 |
7.88 |
4.57 |
5.75 |
4.50 |
2.00 |
3.50 |
* |
|
|
5 |
11.00 |
1.50 |
7.31 |
8 |
1.00 |
9.25 |
5.66 |
7.00 |
5.56 |
2.12 |
4.00 |
* |
|
|
6 |
12.50 |
1.62 |
8.50 |
12 |
1.00 |
10.62 |
6.72 |
8.12 |
6.63 |
2.25 |
4.06 |
* |
|
|
8 |
15.00 |
1.88 |
10.62 |
12 |
1.12 |
13.00 |
8.72 |
10.25 |
8.63 |
2.69 |
4.62 |
* |
|
|
10 |
17.50 |
2.12 |
12.75 |
16 |
1.25 |
15.25 |
10.88 |
12.62 |
10.75 |
2.88 |
4.88 |
* |
|
|
12 |
20.50 |
2.25 |
15.00 |
16 |
1.38 |
17.75 |
12.88 |
14.75 |
12.75 |
3.12 |
5.38 |
* |
|
|
14 |
23.00 |
2.38 |
16.25 |
20 |
1.38 |
20.25 |
14.14 |
16.75 |
14.00 |
3.31 |
5.88 |
* |
|
|
16 |
25.50 |
2.50 |
18.50 |
20 |
1.50 |
22.50 |
16.16 |
19.00 |
16.00 |
3.69 |
6.00 |
* |
|
|
18 |
28.00 |
2.62 |
21.00 |
24 |
1.50 |
24.75 |
18.18 |
21.00 |
18.00 |
3.88 |
6.50 |
* |
|
|
20 |
30.50 |
2.75 |
23.12 |
24 |
1.62 |
27.00 |
20.20 |
23.12 |
20.00 |
4.00 |
6.62 |
* |
|
|
22 |
33.00 |
2.88 |
25.25 |
24 |
1.75 |
29.25 |
22.22 |
25.25 |
22.00 |
4.25 |
6.75 |
* |
|
|
24 |
36.00 |
3.00 |
27.25 |
24 |
1.88 |
32.00 |
24.25 |
27.62 |
24.00 |
4.50 |
6.88 |
||
Production process
First of all, the production process of mainstream closed bellows starts with material preparation. Metal materials such as stainless steel, copper, and aluminum are usually used as raw materials, and appropriate materials and specifications are selected according to customer needs. In the material preparation stage, raw materials need to be cut, cleaned, heat treated, etc. to ensure that the quality and performance of the materials meet the requirements.
Next is the corrugated pipe forming process. The forming of corrugated pipes is one of the most critical links in the entire production process. Cold stamping, hot stamping, hydraulic forming and other processes are usually used to form metal sheets into corrugated shapes through molds. During the molding process, parameters such as temperature, pressure, and speed need to be controlled to ensure that the shape and size of the bellows meet the design requirements.
Then comes the welding session. Mainstream closed corrugated pipes are usually welded using argon arc welding, laser welding and other technologies. Welding is a crucial part of the bellows production process. The quality of welding directly affects the performance and safety of bellows. During the welding process, it is necessary to control the welding temperature, welding speed, welding pressure and other parameters to ensure that the welded joint is firm and free of cracks, pores and other defects.
The last step is surface treatment. The surface treatment of mainstream closed bellows usually includes polishing, sandblasting, electroplating and other processes to improve the surface finish, corrosion resistance and aesthetics of the bellows. During the surface treatment process, attention must be paid to controlling parameters such as treatment time, treatment temperature, and treatment liquid concentration to ensure that the surface quality of the corrugated pipe meets the requirements.

Quality Control

quality inspection
Incoming material inspection: To check the raw materials to ensure that they meet the electroplating requirements.
Process control: To guarantee the quality of the electroplating, keep an eye on the parameters such as current density, electrolyte temperature, electroplating time, etc. during the process.
Appearance inspection: Conduct an appearance inspection on the electroplated parts to check for defects, scratches, oxidation, etc.
Coating thickness measurement: Use a coating thickness gauge to measure the coating thickness to ensure that the coating thickness meets the costumer requirements.
Corrosion resistance test: Carry out corrosion resistance tests, such as salt spray test, damp heat test, etc., to ensure that the coating has good corrosion resistance.
Metallographic analysis: To guarantee the quality of the coating, perform metallographic analysis on the electroplated parts to examine the coating's structure and grain size.
Records of quality: Throughout the electroplating process, note numerous parameters and inspection findings for analysis and traceability.
Why choose us
Production line features:
-
Bimetal alloy screw barrel is wear-resistant and corrosion-resistant, extending service life.
Reasonable flow channel design truly realizes low-pressure, low-temperature extrusion, high efficiency and energy saving.
The efficient vacuum system makes the pipe forming more perfect.
The closed water-cooling structure makes the pipe forming faster.
The sealed cooling water circuit is fixedly connected, and there is no need to disassemble the interface when replacing the module, thus preventing water leakage.
Card-slot module installation makes module replacement convenient and quick, shortening the reproduction interval.
The perfect optimization of the running trajectory makes the module run more smoothly.
Dual hydraulic pressure and dual cutter heads cut accurately and quickly.
High-speed and efficient production reduces the cost of the same unit of pipes by 30%.

FAQ

Common Problem
How do bellows function?
Bellows function by expanding and contracting in response to changes in pressure or temperature. They are made to keep a constant pressure or flow while absorbing movement and stress.
What metal products can you make?
We can make titanium, nickel, tungsten, molybdenum, tantalum and other metal products.
Is Inconel 625 hard to machine?
Although Inconel 625 is categorized as moderate to tough to manufacture, it should be noted that these alloys can be satisfactorily machined at standard production rates utilizing traditional production methods.
How do I choose the right bellows for my application?
Choosing the right bellows depends on several factors including temperature, pressure, chemical compatibility, movement, and vibration.It's crucial to speak with a bellows specialist to get the ideal answer for your particular use case.
about us

ehisen
The company is created in 2004 as a high-tech organization focused on advanced metal material production,including melting,profiling,machining,and precious metal anode research and development.Our company, which employs 50 people and occupies a 15 mu area, is focused on innovative manufacturing.
The business is equipped with rolling, heat-treating, stamping, and alloy production machinery.Processing centers, electroplating,titanium anode production lines and precious metal coating laboratory,as well as related testing equipment.It has evolved over years into a whole business that combines R&D, manufacturing, and sales.
Packaging And Shipping

1. Packaging materials: Use moisture-proof paper, plastic film, foam plastic and other packaging materials to prevent molybdenum flanges from getting damp or suffering minor collisions. In addition, wooden outer packaging boxes or wooden pallets can also be used as packaging auxiliary materials.
2. Outer packaging: The product can be placed in a wooden outer packaging box or wooden pallet of appropriate size to prevent it from being squeezed or bumped during transportation.
3. Transportation method: Choose the appropriate transportation method, such as sea transportation, land transportation or air transportation, and ensure suitable handling equipment to avoid product damage during transportation.
contact us
we are here for you
+86 18700703333 Elsa Lin
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