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Shenyang Wen Sheng instrument and Equipment Co., Ltd.

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Shenyang Wen Sheng instrument and Equipment Co., Ltd.


Address: Dadianzi Industrial Park in Dongling District of Shenyang City

Telephone: 4000-627-672

Fax: 024-88333299

Mailbox: wsyqgs2006@163。com

URL: www。wsyq。com


Insulation joint

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Insulation joint

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Insulation joint



Insulation joint

Large steel:

QDQ-JD series insulating joint formed steel cylinder is far greater than the pipeline bending modulus, behoove can withstand large bending moment (according to the pipeline strength design), eliminate the other insulating joints caused by the steel shortage caused by leakage accident due to the unreasonable structure.

Long life:

QDQ-JD series insulating joint using two sealing structure, Q type and U type self sealing ring, sealing ring insulation laminated section. Completely avoid moisture products in the water pressure test and soil moisture to prevent internal joints, good sealing performance. In addition, the annular space inside the sleeve (assembly) is injected into the polymer composite material, and the low viscosity, the cold and the solid hot hardness resin are injected. And has certain compressive strength. To eliminate the leakage caused by seal failure, and insulation failure caused by leaks, especially by the king of rubber (FPM) seal, anti aging degree is greatly strengthened, the service life of the pipeline is equal.

Insulation joint installation:

QDQ-JD series insulation joint due to high insulation, sealing and reliable, and pipeline life, no maintenance, so no need to install the underground installation of observation wells, can be directly buried in the ground.


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