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Pipe flanges flexible connector bellow expansion joint is the most common and popular, it is mainly used in pipe connection, absorb the extension and compression of pipe, according to different working situation, usually we recommend different structure, it includes two flanges, tie rods and bellows, according to actual working situation, you can choose to add inner sleeve or change structure, and we can offer you drawing for confirmation.
About the material of bellow, we can do SS304, SS316, SS321 and SS310s etc, for working pressure, we can do PN16, PN25, PN32, PN40 etc. For working temperature,we can do -10~+300℃ etc. And we can do OEM and ODM production for you.
For more details, please click here to contact us.

No. | Name | Material |
1 | Tie rods (Bolt, nuts and ear plate) | Carbon steel or stainless steel 304,316,321,310s etc. |
2 | Bellow | Stainless steel 304,316,321,310s etc. |
3 | Flange | Carbon steel or stainless steel 304,316,321,310s etc. |
Main connection data:
Common data above are only for reference, pls contact us for exact data.
Each of our products is certified by authoritative institutions.

Company Name : Gongyi Runda Pipeline Manufacturing Co., Ltd.
Address : Xicun Village, Xicun Town, Gongyi, Zhengzhou, Henan, China
We have passed the ISO9001:2008 quality management system certification, with strict quality control system, standard production process flow and standardized delivery inspection scheme to ensure that the delivered products meet the technical requirements.
The main products are: rubber expansion joint, repair clamp, bellow expansion joint, flexible metal hose, double flange dismantling joint, flange adaptor, dresser coupling, fabric expansion joint, bellow seal globe valve, etc.
Please contact us for more information.


Q1. What is your terms of payment?
T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.
Q2. How about your delivery time?
Generally, it will take 7 to 10 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.
Q3. Can you produce according to the samples?
Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q4. Do you test all your goods before delivery?
Yes, we have 100% test before delivery
Q5: How do you make our business long-term and good relationship?
We keep good quality and competitive price to ensure our customers benefit ;We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.
Pls send your detailed needs in the below and get a quick reply!
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