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Premium Pipeline Insulating Joints & Industrial Flanges

Hebei Liansen Pipeline Equipment Manufacturing Co., Ltd. is a leading manufacturer of high-quality insulating joints, flanges, and pipe fittings. Located in Yanshan’s Puwacheng Industrial Zone on the Bohai Sea coast, we specialize in producing reliable solutions for oil, gas, water, and chemical pipeline systems.

Pipeline Insulating Joint
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About Hebei Liansen

Hebei Liansen Pipeline Equipment Manufacturing Co., Ltd. is located in the Puwacheng Industrial Zone, Yanshan, on the coast of Bohai Sea. The company specializes in the production of high, medium, and low-pressure pipe fittings, flanges, and pipeline accessories.

Since its establishment, the company has regarded manufacturing high-quality products as the foundation of its development. From raw material retesting to manufacturing process control, as well as various inspections after product molding, we strictly follow the process technology requirements and quality assurance manual to ensure the provision of high-quality products to our customers.

Quality Assured

Advanced Equipment

24/7 Support

Our Product Range

We offer a comprehensive range of pipeline insulating joints, flanges, and fittings designed for durability, safety, and performance in demanding industrial environments.

Insulated Joint

Insulated Joint

High-performance electrical isolation joint for pipeline systems.

20# Insulated Connector

20# Insulated Connector

Carbon steel insulated connector with excellent corrosion resistance.

L245 Insulated Connector

L245 Insulated Connector

API 5L L245 grade material for high-strength pipeline applications.

L360 Insulated Connector

L360 Insulated Connector

High-yield strength connector suitable for critical pipeline sections.

Q345 Insulated Connector

Q345 Insulated Connector

Low-alloy high-strength structural steel connector.

Insulating Flange

Insulating Flange

Complete flange assembly with insulating gasket and sleeves.

Stainless Steel Flange

Stainless Steel Flange

Corrosion-resistant flanges for aggressive environments.

Pipe Insulation Joint

Pipe Insulation Joint

Pre-assembled joint with pipe spools for easy installation.

Elbow

Elbow

Available in various angles and materials for pipeline routing.

Tee

Tee

Equal and reducing tees for branching pipeline systems.

Bend

Bend

Large radius bends for smooth fluid flow and reduced friction.

Forged Tee

Forged Tee

High-pressure forged tee for critical service applications.

Why Choose Our Insulating Joints?

Our products are engineered for reliability, longevity, and compliance with international standards.

Certified Quality

We obtain various honorary certificates in the industry and follow strict quality control procedures from raw material testing to final inspection.

Advanced Equipment

Equipped with modern manufacturing facilities and professional technical services to ensure precision and consistency.

Corrosion Protection

Our insulating joints prevent galvanic corrosion and protect pipeline infrastructure from electrochemical degradation.

Dedicated Support

One-to-one service with fast response times. Good service is our consistent principle.

15+
Years Experience
50+
Countries Served
10K+
Units Delivered
99.8%
Customer Satisfaction

Frequently Asked Questions

Find answers to common questions about our insulating joints and services.

What is an insulating joint used for?

An insulating joint is used to electrically isolate sections of a pipeline to prevent galvanic corrosion and interference from stray currents. It ensures the integrity and longevity of pipeline systems.

What materials are your connectors made from?

We manufacture connectors from various materials including 20# carbon steel, L245, L360, Q345, and stainless steel, depending on the application requirements and environmental conditions.

Do you offer custom designs?

Yes, we provide OEM and ODM services. Our engineering team can design and manufacture insulating joints and fittings according to your specific technical drawings and standards.

What certifications do you have?

Our company adheres to strict quality assurance processes and holds various industry-recognized certifications. All products undergo rigorous testing before shipment.

How can I request a quote?

Please visit our official website to submit your inquiry or contact our sales team directly for a customized quotation based on your specifications.

Get in Touch

For inquiries, quotes, or technical support, please reach out through our official website.

Tel: 086-0317-6299555

Phone: 086-13931765967

Email: [email protected]

Contact: Manager Dong

Address: Yanshan Puwacheng Industrial Park, Bohai Sea Coast

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