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The dresser coupling is composed of sleeve and two covers.
It is mainly used to absorb the axial displacement and loose pipe connection under axial pressure and thrust in the allowable displacement range.


| DN | DW external diameter | extermal dimension | N-Th | |||
| Length | D | 0.25-1.6MPA | 2.5-6.4MPA | |||
| L1 | L | |||||
| 65 | 76 | 180 | 208 | 155 | 4-M12 | 4-M12 |
| 80 | 89 | 165 | ||||
| 100 | 108 | 195 | ||||
| 100 | 114 | 195 | ||||
| 125 | 133 | 225 | ||||
| 125 | 140 | 225 | 4-M16 | |||
| 150 | 159 | 220 | 255 | 4-M16 | 6-M16 | |
| 150 | 168 | 255 | ||||
| 200 | 219 | 310 | ||||
| 225 | 245 | 335 | ||||
| 250 | 273 | 223 | 375 | 6-M20 | 8-M20 | |
The above data is only part of the data, if you need a special size, please contact us.

After the capping expansion joint is installed on the pipeline, the elastic sealing ring of the nut is tightened. Under the action of the capping nut, the outer ring of the pipe is sealed and connected by the mutual slope. When the temperature changes, the pipe can expand freely in the middle of the joint, when the foundation sinks, the pipe can deflect, and ensure that there is no leakage in the seal, thus playing the purpose of automatic compensation.

Gongyi Runda Pipeline Equipment Manufacturing Co., Ltd. is located in Xicun Town Pipeline Industrial Park, Gongyi City, Henan Province. It covers an area of more than 1000 square meters and has complete production equipment.
Our company mainly provides rubber expansion joints, bellows expansion joints, dismantling joints, compensators, repair clamp, flexible metal hose, double flange dismantling joint, flange adaptor, dresser coupling, fabric expansion joint, etc.




Q : Are you trading company or manufacturer?
A: We are manufacturer of duckbill valve, expansion joint,rubber joint, bellows expansion joint, dismantling joint, dresser coupling, flange adapter and flange with more than 14-year experience.
Q: Do you have products catalog?
A: Yes, we have. Please tell me your email or instant messager, we will send our catalog.
Q: Can you provide drawings and technical data?
A: Yes, our professional technical department will design and provide drawings and technical data.
Q: Do you provide samples? Is it free or charged?
A: Yes, we can offer sample free but shipping charges covered by customer.
Q: How long is your delivery time?
A: Depends on QTY, but normally no more than 20 working days.
Q: Can the products be manufactuered by customer's requirement?
A: Yes, the specifications stated above are the standard ones, we can design and manufacture as requirement.
Q: Visting factory is allowed or not?
A: Yes, we welcome customers visiting our factory. Our factory is located Gongyi city,Henan province,China mainland.
Please write down your requirements below, you will get a quick reply!
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