Three layers stainless steel exhaust bellow expansion joint

Three layers stainless steel exhaust bellow expansion joint

Price:
USD 1.00 - 20.00
Payment Terms:
T/T, L/C

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Supplier Details

Hennan Liwei Industry Co,.Ltd

Free Member  (2014)

[ Zhengzhou, HE, China ]

Business Type:  Manufacturer

Supplier has 4 products

Contact Details

Quick Details

Brand:
Liwei
Origin City:
Henan
Origin Country:
China

Packaging and Delivery

Packaging:
woodcase

Product Description

Inspection Procedures for Expansion Joint

a. Cracking. (Sun Checking) Cracking, or crazing may not be serious if only the outer cover is involved and the fabric is not exposed. If necessary, repair on site with rubber cement where cracks are minor. Cracking where the fabric is exposed and torn, indicates the expansion joint should be replaced. Such cracking is usually the result of excess extension, angular or lateral movements. Such cracking is identified by: (1) a flattening of the arch (2) cracks at the base of the arch, and/or (3) cracks at the base of the flange. To avoid future problems, replacement expansion joints should be ordered with control rod units.
b. Blisters-Deformation-Ply Separation. Some blisters or deformations, when on the external portions of an expansion joint, may not affect the proper performance of the expansion joint. These blisters or deformations are cosmetic in nature and do not require repair. If major blisters, deformations and/or ply separations exist in the tube, the expansion joint should be replaced as soon as possible. Ply separation at the flange O.D. can sometimes be observed and is not a cause for replacement of the expansion joint.
c. Metal Reinforcement. If the metal reinforcement of an expansion joint is visible through the cover, the expansion joint should be replaced as soon as possible.
d. Dimensions. Any inspections should verify that the installation is correct; that there is no excessive misalignment between the flanges; and, that the installed face-to-face dimension is correct. Check for over-elongation, over-compression, lateral or angular misalignment. If incorrect installation has caused the expansion joint to fall, adjust the piping and order a new expansion joint to fit the existing installation.
e. Rubber Deterioration. If the joint feels soft or gummy, plan to replace the expansion joint as soon as possible.
f. Leakage. If leaking or weeping is occurring from any surface of the expansion joint, except where flanges meet, replace the joint immediately. If leakage occurs between the mating flange and expansion joint, tighten all bolts. If this is not successful, turn off the system pressure, loosen all flange bolts and then retighten bolts in stages by alternating around the flange. Make sure there are washers under the bolt heads, particularly at the split in the retaining rings. Remove the expansion joint and inspect both rubber flanges and pipe mating faces for damage and surface condition. Repair or replace as required. Also, make sure the expansion joint is not over elongated, as this can tend to pull the expansion joint flange away from the mating flange resulting in leakage. If leakage persists, consult the manufacturer for additional recommendations.
The Installation/Inspection Instructions are considered to be the best industry practices and are defined by the Fluid Sealing Association Technical handbook 7th Edition Non-Metallic Expansion Joints and Flexible Pipe Connectors.

8. Our service of Expansion Joint
1.Your inquiry related to our expansion joints or prices will be replied in 24hrs.
2.Well-trained and experienced staffs to answer all your enquires in fluent English
3.OEM&ODM, any your customized expansion joints, rubber lined pipe and Mill,we can help you to design and put into product.
4.Distributorship are offered for your unique design and some our current models
5.Protection of your sales area, ideas of design and all your private information
1. Henan Liwei Industry Co., Ltd
1. Since 1988, Top 3 manufacturer of ss expansion joint in China;
2. The Main Drafting Committee of National Standard for Expansion Joint;
3. Qualified Supplier for Nuclear Power Plant;
4. ISO9001:2008 and ISO14001:2004 Certified.

2. SS Expansion Joint is compensating element for thermal expansion and relative movement in pipelines, containers and machines. They consist of one or more metal bellows, connectors at both ends, and tie rods that depend on the application. They are differentiated according to the three basic types of movement: axial, angular and lateral expansion joints.

SS Expansion Joint is the elastic vessel that can be compressed when pressure is applied to the outside of the vessel, or extended under vacuum. When the pressure or vacuum is released, the bellows will return to its original shape (provided the material has not been stressed past its yield strength).

3. Features
Economical end usage
Providing for lower initial costs in piping & construction work
4. Applications
Diesel engine sets
Pipelines
Turbines
Compressors
Blowers
Vacuum pumps
Heat exchangers
5. Advantages
Reduce vibration
Dampen sound transmission
Compensate lateral, torsional & angular movements
Compensate axial movements
Minimal face-to-face dimensions
Lightweight
Low movement forces required
Reduced fatigue factor
Reduced heat loss
Corrosion, erosion resistant
No gaskets
6. Terms of Exchange of Expansion Joint

Basic Information

Country:
China
Business Type:
Manufacturer
Year Established:
1995
Total Employees:
501 - 1000

About Us

Henan Liwei Industry Co. Ltd, located at Shangjie District, Zhengzhou city, is a manufacturer specializing in processing various steam, water, wind pipe expansion joints and compensation joints, and a main base for producing rubber , metal and non-metallic pipe joints It is also the appointed enterprise by the former chemical industry ministry, national construction ministry and general petrol chemical company, member unit of China Water Supply Association and power Equipment Network Union, and joints production unit recommended by China Water Association and National Metallurgy Ministry.

Liwei brand flexible rubber joints have various heavy calibers, types and high quality in the country. The products series have won four patents and our company is name “Quality and Credit Unit” by Henan Province. Our products have become the first choices for national power design, municipality and metallurgy units.

At present, our products include four serial flexible rubber joints, three types, tens of standard and common specification, eight series of metal pipe losing compensation joints and fourteen standard specifications and types, eleven types of standard and common specification products for four serial wind pipe non-metal compensators. Our annual comprehensive production capacity can reach over forty thousand sets and we also process various pipe joint matching flat welding flanges (steel international/non-international standard).Our products have been sold in over thirty cities and autonomous regions. With China`s entry to the WTO, our products have been exported to foreign countries as Italy, Spain, Pakistan, Singapore and East European countries, etc. and the products have become public famous brand products for design units and clients.

Our company has been equipped with rich technical strength, excellent design and complete products test measures. We also own a set of strict management system and high-quality technicians. In 2004, we have gained ISO9001 and ISO14001 certificate.

Insisting on the rennet “Development Through Technology, Making More Friends, Creating Green Environment and Responsible For Future”, the company has been devoting itself to creating top products and well serving all clients around the world, Liwei brand products will be a red line between we and the clients for ever.

Our Advantages:

1) Guaranteed quality of all the products we supplied;

2) More than 30 years’ experiences of export;

3) ISO9000 and ISO14001 certified;

4) Reasonable prices;

5) Ensured delivery schedule.

Welcome to contact us freely!

Member History

Year Joined:
2014
Membership Type:
Free Member

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