pipeline project insulation joint, natural gas pipeline insulating joint

$1,000.00 - $5,000.00
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Company Information

Tianjin Zhong Hai Chen Xing Environment Project Scientific Technical Co., Ltd.

CN Manufacturer, Trading Company
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Quick Details

Payment Terms: L/C,D/A,D/P,T/T,Western Union,MoneyGram,cash
Supply Ability: 1000 Piece/Pieces per Month
Shape: equal
Place of Origin: Tianjin China
Size: DN80
Color: Green
Connection: Welding
Product: monoblock insulating joint
Material: Carbon Steel
Model Number: DN80
Pressure: PN25
Surface treatment: Polishing ,sandblasting,Painting
Name: monoblock insulating joint
Surface: sandblasting,Painting
Brand Name: ZHCX
Item: Press Fitting Gas/oil large size insulating joint
Type: Coupling
Technics: Forged
Head Code: circle
Application: Gas/oil Pipeline
Certificate: CE certificate
Delivery Detail: Shipped in 0 days after payment
Product Description

Product name:insulating joint

Material:Carbon Steel

Place of Origin:Tianjin,China




Model Number:ZJ3

Shape: Equal



Brand Name:ZHCX

Head Code:Round

Color:Green, Blue, Yellow, Red Or Customized

Detailed Images

Insulating joint Product Introduction:

We developed Monolithic Insulating Joints type ZJ3 successfully, and passed technical appraisal presided over by the Tianjin Municipal Science and Technology Commission in April 2, 2008, and obtained a patent certificate.And our Products obtained CE certification.

Insulating joint product details:

The new type monolithic insulating joints ZJ3 has reached the international advanced level.
Monolithic insulating joint is a high-tech product
It is very difficult to manufacture the monolithic insulating joint, it requires accurate design, precision machining and accurate assembly, the combination of a wide array of high-quality materials, strict quality inspection, so the monolithic insulating joint is multidisciplinary comprehensive high-tech product.
Characteristics of the new type ZJ3 products

monolithic insulating joints
Operation pressure
up to 42 Mpa
Operation temperature
design temperature 250℃;(exported to Sudan Project)
Electric resistance
more than 10 MΩ at 2.5KV DC(direct current)
Dielectric strength
no breakdown at 50Hz, 3KV AC(alternating current)

The new type ZJ3 monolithic insulating joint

The new type ZJ3 monolithic insulating joint has been developed to be a series of products after unremitting efforts of generations of scientific and technical persons in our company. It has unique advantages in product design, material properties, tooling and process improvement and a full independent intellectual property right. 

So the new type ZJ3 monolithic insulating joint has been treated as national key new product by Five National Ministries.Main Characteristics of the new type ZJ3 monolithic insulating joint.Assembled in factory, prefabricated monolithic structure.Strict mechanical and electrical inspection in factory.

Can be buried directly Without any maintained.A variety of diameters and pressure, can meet the requirement of high, medium, low pressure steel pipeline for oil, water and gas.

The insulating Joints is a new generation developed product to resolve use problems of old insulating flange. It is the essential pressure component necessary for steel pipeline cathodic protection system, broadly applicable to steel pipeline cathodic protection systems. Our companys insulating connectors adopts a unique design based on referencing foreign latest product structure to overcome problems of inadequate rigidity, prone to leak, unable to be buried under ground, short service life, etc. The insulating connectors have realized buried parts maintenance-free function and allow a service life matching the pipelines.

Monolithic Insulating Joints Technical Characteristics
Pressure grade:
Service life:
same as the service life of pipeline
Ambient temperature:
Applicable medium:
 oil, gas, water, chemical feed, mineral slurry
Quality requirement
Insulating resistance value:
≥10MΩ @DC1000V, Maximum voltage:≥3KV
Insulating intensity:
 no breakdown or arc for one minute @2500V 50Hz
Hydraulic testing pressure:
1.5 times of desingned pressure
Air-tight testing pressure:
 equivalent to designed pressure
Non-destructive testing:
 All the butt-connectors are 100% ray-detected according to JB4730-94; other pressure welding seams are 100% magnetic power detected.
 adopt AP15L standard
Insulanting meterial:
hign strength epoxy resin and fiberglas stratification composite material
Bends intensity:
Lengthways≥390MPa Side direction≥290MPa
Pulls stretch intensity:
 Lengthways≥340MPa Side direction ≥240MPa
Compressive intensity:
≥390MPa Water-absorbing≤30mg
Scaks in water behind resistance:
≥5x108Ω Breakdown resistance≥35KV
Assemblies steel:
16Mn JB4726; ASTM A694 F52 F60
Sealing material:
O shape or U shape gland ring: Rubber fluorine, Jing base butadiene rubber, According ASTM D2000
Lining material:
Cold solid colophony
Insulating paint:
 Imports liquid epoxy resin
Anti-corrosion insulating material:
 two-component solvent-free epoxy coating, anti-corrosion thermal contraction bushing
Product sizes
Packing & Delivery

Packaging Details:Wooden Case With The Fumigation Identification

Delivery Details:7-30Days,Various From Order

The TPI inspecting

The Packing by worker

The delivery package

The Product Packing

The Product Loading

The Product Transportation

Our Company

Tianjin ZHCX Environment Project Science & Technology Co.
It Was founded in January 1994, its predecessor is the National Oceanic Administration Anti-corrosion Company. 

We always take the high-tech as our target and change the scientific research achievement into productive forces in the 20 years so far. 

We have the import and export rights and have passed ISO9001, Products obtained CE certification,was awarded the title of outstanding private technology enterprises in Tianjin.

As the Top insulating joint manufacturer in China which access to the EU CE certification, we have exported our products to many countries like Germany, Italy, America, Russia, France and other districts in the world.

Our Factory

The Factory workshop

The Production Machine

At The Exhibition In Beijing

The Client Is Consulting At The Exhibition In Beijing

The Client Is Consulting At The Exhibition In Beijing

Contact us
Sarah / business manager
Tianjin Zhonghai Chenxing Environment Project Science & Technology Co., Ltd.
Add: No. 20, Tiantong Road, Tiedong Industrial Park, Beichen District,Tianjin,China (Mainland)
We chat:13821728503 / han1458754500
Skype:Sarah1458754500          QQ:1458754500
Email:sarah at tj-zhcx.com
Website: http://cntjzhcx.en.alibaba.com