Our goal is to be your true partner in the automotive field in China. China Weilong is committed to developing and supplying customized metal parts for different industries. We have experienced staff and engineers to help you improve and modernize your production process to save costs, and we can also help you control quality, inspect products and monitor delivery time during production. We provide reasonable pricing, compliance with product specifications/standards, effective packaging, on-time delivery to all parts of the world, and impeccable service.
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![Metal Bellows]()
Metal BellowsGenerally, there are 3 kinds of metal bellows: metal bellows, expansion joint bellows, and metal corrugated hose. With the advancement of technologies such as metal pressure processing and the -
![Metal Bellows]()
Metal BellowsItem:Metal Bellow. Material: AISI 321+304. Weight:0.3kg. Process: Extruding+machining+welding.
Why Choose Us
Sales Market
Our products are shipped to the UK, Germany, France, Italy, Poland, the USA, Canada, the Netherlands, Sweden, Austria, New Zealand, Singapore, and India, serving more than 100 customers in the automotive industry.
Our Certificates
China Welong was founded in 2001 and is certified by ISO 9001:2015 and the API-7-1 quality system. We are dedicated to the development and supply of customized metal parts used in various industries.
Product Application
Weilong's main capabilities include forging, sand casting, investment casting, centrifugal casting and machining. We serve the fields of industrial manufacturing, oil drilling, aerospace and high-end medical fields.
Our Service
We have experienced staff and engineers who assist in improving and modernizing production processes to save costs. We can also help you control quality during production, inspect products, and monitor delivery times. We offer reasonable pricing, ensure product specifications and standards are met, and provide effective packaging.
Formed Bellows (convoluted bellows): These metal bellows are made by reworking tubes, which are produced by deep-drawing under various processes such as hydro-forming and cold forming.
Electroformed bellows: These metallic bellows are produced through electro-forming or the plating of a metallic layer onto a mandrel. The mandrel is later removed to give a formed bellow.
Welded bellows (diaphragm): These metal-based bellows are made by welding variously formed diaphragms together.
Product Description
|
1)Material |
Sus304,321,310S,316L,etc. |
|
2)Parts |
Flange, bellows, internal sleeve, tie-rod, pipe end, nut |
|
3)Size available |
Φ25mm~φ7000mm |
|
4)Bellows layers |
1-6 layers |
|
5)Threads |
DIN, BSPT, BSP, NPS, NPT, Metric, (ISO7/1, DIN 2999, ANSI B1.20.1) |
|
6)Flange Drilled |
JIS,JB,BS, DIN, ANSI, or others provided drawing samples |
|
7)Surface |
Carbon steel flange galvanized or AL painted |
|
8)Normal Specification |
ID40~600mm,overall length:300~400mm |
|
9)Usage |
For the chemical industry, metallurgy, electricity, shipbuilding, construction and other industries |
|
10)Application temperature |
-50~300°C |
|
11)Feature |
Easy cleaning and maintenance To resolve minor deviation because of pipe connection and eliminate the pipeline residual stress |
Metal Bellows Applications
|
Type |
Material |
Definition |
Industry/Application |
|
Accumulator |
316L, Inconel, Titanium, C276 |
Store the potential energy of liquid or gas and smooth out pulsations |
Aerospace, Industrial Gases, Oil & Gas, Sub-Sea Controls, Fluid Management |
|
Actuator |
304, 347, 316L, Titanium, HX, Inconel |
Transfer pressure or temperature into linear motion or apply force |
Hydraulic systems, Pneumatic Cylinders, Sensors |
|
Compensator |
316L, Titanium |
Compensates for feedback or changes in pressure or temperature |
Aerospace, Cryogenics |
|
Expansion Joint |
304L, 316L, 321, 347, Inconel |
Flexible connector allows for temperature related structural changes |
Engine Exhaust, Turbo, Boiler, Silencer, Turbine |
|
Lifter Bellow |
347, 316L |
Transport or hoisting system for processing equipment |
Semiconductor, Automation, Photo Voltaic |
|
Mechanical Feed Through |
321, 347, 316L |
Flexible seal allowing movement of a tool within pressure environment |
Semiconductor, Cryogenics, Automation, Pumps |
|
Mechanical Seal |
316L, Inconel, C276 |
Running seal between two parts reducing radial runout or flush |
Oil & Gas, Petrochemical, Water, Pharmaceutical |
|
Vibrations Dampening |
347, 316L |
Isolates vibrations between a shaft and ring |
Semiconductor, Cryogenics, Oil & Gas, Exhaust Dampening |
(1)Metal Expansion Joints
The metal corrugated compensator is composed of bellows (an elastic element) constituting its working body and accessories such as end pipe, support, flange and conduit. The utility model belongs to a compensation element. The effective expansion deformation of the bellows of its working body is used to absorb the dimensional changes of pipelines, conduits and containers caused by thermal expansion and cold contraction, or to compensate the axial, transverse and angular displacement of pipelines, conduits and
containers. It can also be used for noise reduction and vibration reduction. It is widely used in modern industry.
(2) Non metallic compensator
The non-metallic Compensator can compensate the axial, transverse and angular displacement of the pipeline. It has the characteristics of no thrust, simplified support design, corrosion resistance, high temperature resistance, noise elimination and vibration reduction. It is especially suitable for hot air pipeline and smoke pipeline.
Packaging
FAQ
As one of the leading petrochemical manufacturers and suppliers in China, we warmly welcome you to buy customized petrochemical from our factory. All bespoke products are with high quality and competitive price. Contact us for OEM service.
Metal Bellows, Extruding and machining and weldingPopular Products
