必中彩票注册

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

Detailed introduction

Insulation joint




Insulation joint:

QDQ-JD series insulation joints are buried steel requirements of the sealing performance and electrical corrosion protection engineering requirements of the electrical insulation properties of the pipeline joint. It contains a combination of parts, insulation board, packing, sealing ring and tube etc.. With the end of the whole structure of welding manufacturing (buried insulating joint, maintenance free) is my company in 90s introduced the Italy high and new technology, the internal structure of the O type or U type rubber ring seal, so far ahead of the domestic market. In the production process strictly enforce the GB150-2011 "pressure vessels", HG/T20583-2011 "chemical container steel structure design regulations" and "JB/T4730-2005" nondestructive testing of pressure equipment and other requirements, the product quality can be improved steadily.

Product performance:

High insulation:

QDQ-JD series insulating joint insulation ring with high compressive strength (less than 350N/mm2), low strength, anti-aging material is greatly improved, insulation resistance value is greater than 10M, is far greater than that of other insulating joint resistance value, thus greatly improving the insulation, reducing leakage current, can give full play to the effect of Cathodic protection, improve the operation the life of Bai protection pipeline。

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.

Buried installation:

必中彩票注册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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