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Offshore Flexible Pipe Installation

Hizenflex – Pioneering Flexible Composite Pipe Technology

Delivering high-performance, corrosion-resistant flexible pipes for offshore oil & gas, subsea infrastructure, and high-pressure transmission systems.

About Hizenflex

Wudi Hizen Flexible Pipe Manufacturing Co., Ltd. (Hizenflex) is a high-tech enterprise specializing in the research, development, manufacturing, and sales of marine flexible composite pipes.

Hizenflex Manufacturing Facility

Innovation, Integrity, and Cooperation

Established in 2007 and headquartered in Wudi County, Binzhou City, Shandong Province, Hizenflex covers an area of 260,000 square meters and employs over 120 professionals. We integrate R&D, design, manufacturing, and sales to deliver cutting-edge flexible pipe solutions.

Our mission is to provide continuous reinforced non-bonded flexible composite pipes and flexible reinforced thermoplastic composite (RTP) pipes that meet international standards such as API-17J, API-15S, and SY/T 6662.

2007
Founded
260K m²
Facility Size
120+
Employees
20+
Global Clients
100m+
Water Depth Capability
5.5 km
Single Project Length
10"
Max Pipe Diameter

Our Products

Engineered for extreme environments, our flexible composite pipes offer unmatched durability, flexibility, and corrosion resistance.

API-17J Non-Bonded Flexible Composite Pipe

API-17J/API-15S Non-Bonded Flexible Composite Pipe

Designed for offshore oil & gas fields, suitable for transporting oil, gas, and water. Offers excellent flexibility and corrosion resistance for subsea applications.

  • • Compliant with API-17J & API-15S
  • • High flexibility & fatigue resistance
  • • Corrosion-resistant materials
  • • Adaptable to complex seabed terrain
RTP Steel Skeleton Reinforced Pipe

SY/T 6662 RTP Steel Skeleton Reinforced Pipe

High-pressure plastic composite pipe with steel reinforcement. Ideal for oil & gas exploitation and long-distance transmission.

  • • High pressure & impact resistance
  • • Lightweight & jointless laying
  • • Corrosion-resistant
  • • Coiled for rapid deployment
9.5-inch Pipe for Shell Malaysia

9.5-inch Multi-Phase Flow Pipe (Shell Malaysia)

1km large-diameter, high-temperature, high-acid resistant pipe for offshore Sarawak, Malaysia.

  • • 9.5-inch diameter
  • • 1km length
  • • Acid-resistant steel technology
  • • Multi-phase transport (oil, gas, water)
Petronas 10-inch Pipe Project

10-inch Static & Dynamic Pipe (Petronas)

5.5km pipe system for joint oil field operated by Petronas, ConocoPhillips, and Shell Malaysia.

  • • 10-inch diameter
  • • 5km static + 500m dynamic
  • • Offshore deployment
  • • High durability under stress
Wenchang Gas Field Pipes

Wenchang Gas Field Development Pipes

6-inch and 8-inch pipes, totaling 20km. Represented the highest production level in China at the time.

  • • 6" & 8" diameters
  • • 20km total length
  • • High-pressure gas transmission
  • • Domestic technological milestone
Flexible Composite Pipe Manufacturing

Custom Flexible Composite Pipes

Tailored solutions for specific project requirements including diameter, length, pressure rating, and environmental resistance.

  • • Custom diameters up to 10"
  • • High-temperature variants
  • • Acidic & saline resistance
  • • Dynamic & static configurations
Subsea Flexible Pipe Systems

Subsea Flexible Pipe Systems

Complete pipeline systems for subsea tie-backs, risers, and flowlines in deepwater environments.

  • • Up to 100m water depth
  • • Dynamic bend stiffener options
  • • End fittings & connectors
  • • Installation support
High-Pressure RTP Pipes

High-Pressure RTP Pipes

Reinforced thermoplastic pipes for onshore and offshore high-pressure applications.

  • • Pressure ratings up to 3600 psi
  • • Lightweight & corrosion-free
  • • Spoolable for fast deployment
  • • Long service life

Technology & R&D

Hizenflex invests heavily in research and development to maintain leadership in flexible pipe innovation.

R&D Team & Laboratory

Our dedicated R&D team operates in a state-of-the-art laboratory, focusing on material science, structural integrity, and performance optimization under extreme conditions.

We conduct rigorous testing for fatigue, pressure cycling, tensile strength, and corrosion resistance to ensure compliance with API and SY/T standards.

  • • Expertise in non-bonded flexible pipe design
  • • Advanced simulation & modeling
  • • Collaboration with industry partners
  • • Continuous improvement culture
R&D Laboratory

Key Projects

Hizenflex has successfully delivered critical pipe systems for major international energy companies.

Shell Petroleum Malaysia – 9.5-inch Pipe

Supplied 1km of multi-phase flow pipe for offshore Sarawak. This project marked a breakthrough in high-temperature, high-acid resistance technology.

  • • Diameter: 9.5 inches
  • • Application: Offshore oil & gas
  • • Challenge: Acid-resistant steel development

Petronas Malaysia – 10-inch, 5.5km Pipe

Procurement of 5km static and 500m dynamic pipe for a joint oil field operated by Petronas, ConocoPhillips, and Shell.

  • • Total length: 5.5km
  • • Diameter: 10 inches
  • • Operators: Petronas, ConocoPhillips, Shell

Wenchang Gas Field Development

Delivered 20km of 6-inch and 8-inch pipes, representing the highest domestic production capability at the time.

  • • Total length: 20km
  • • Diameters: 6" & 8"
  • • Field: Wenchang Oil Field, China

100m Water Depth Flexible Pipe R&D

Expert review meeting held at Hizenflex in April 2024 for localization development of dynamic flexible pipes for 100m water depth conduit rack platforms.

  • • Project: Deepwater flexible risers
  • • Depth: 100 meters
  • • Partner: Shanghai Branch

Latest News

April 9, 2024

Expert Review Meeting on 100m Water Depth Flexible Pipe

Held at Hizenflex, focusing on localization and engineering applications for deepwater dynamic flexible pipes.

April 24, 2023

Certified as Shandong Specialized & Innovative SME

Recognition of Hizenflex’s technological innovation and industry specialization.

February 23, 2023

Visit by County Party Committee Leadership

High-level government delegation toured Hizenflex to review operations and development.

Get in Touch

For inquiries, technical support, or partnership opportunities, reach out to our team.

Contact Information

  • Phone: +86 0543-8613756 / +86 22-86439887
  • Email: [email protected]
  • Factory: Xigang Economic Park, Wudi County, Binzhou, Shandong, China
  • Tianjin Office: Room 901, Tianbai Center, Nankai District, Tianjin

Connect With Us

Visit our official website for detailed product catalogs, certifications, and project references.

Visit Official Website

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