About Us Company Profile
He Zheng Co., Ltd.
Specialized piping for stable tank operations.
He Zheng Co., Ltd. specializes in drainage and firefighting foam transfer hoses for petroleum and chemical storage tanks. Our primary product, Dresden Pipeline flexible steel hose, is used for floating roof tank drainage and firefighting foam transfer. We focus on matching product characteristics to actual operating conditions, with particular attention to operational stability, installation suitability, and long-term service requirements.
We believe that selecting the right piping products begins with a thorough understanding of application requirements. At He Zheng, we emphasize clear product information and communication. From product construction and applications to usage precautions, we help customers develop a comprehensive understanding of flexible steel hoses to support their evaluation of tank drainage and firefighting foam transfer piping.
Guided by professionalism, a practical approach, and a commitment to quality, He Zheng focuses on the piping needs of petroleum and chemical storage tanks. We carefully consider the relationship between product performance, application conditions, and long-term maintenance. Through clear communication and dependable product information, we aim to be a trusted partner to our customers.

Our Services Business Scope

01
Floating Roof Drainage System
We supply flexible steel hoses for floating roof tank drainage systems, connecting the roof sump to the drain outlet at the tank bottom. Continuous hose construction and a predefined movement path reduce the number of moving joints and the risk of leakage, helping improve tank drainage reliability.

02
Firefighting Foam Delivery System
Flexible steel hoses deliver firefighting foam or foam solution directly to the seal area of floating roof tanks. This direct delivery approach helps reduce the effects of weather and rising air currents caused by fire on foam delivery, supporting the operational requirements of tank fire protection systems.

03
Hose Selection & Planning
We help customers understand the key considerations for selecting hose diameter, length, and connection specifications based on tank dimensions, height, drainage requirements, and site conditions. Using tank drawings and application requirements, we provide product planning information to support discussions with the manufacturer on configuration and hose routing.

04
Technical Consultation
We provide technical information on installation conditions, usage precautions, and inspection and maintenance of flexible steel hoses. This includes key inspection points for the movement path, hose surface, and connections, helping customers understand equipment operation and maintenance requirements.
Our Strengths Core Advantages
Strength & Corrosion Resistance
Combines a SUS304 stainless steel framework with specialized protective materials to suit the operating environments of petroleum and chemical storage tanks.
Stable Movement Path
Maintains a predefined bending profile and movement path as the floating roof rises and falls, reducing the risk of interference with other equipment inside the tank.
Continuous Hose Construction
Reduces intermediate moving joints and swivel connections, helping lower the risk of fatigue damage and leakage.
Tank-Specific Hose Selection
Hose specifications are selected according to tank dimensions, hose diameter, and operating conditions to balance operational performance with ease of maintenance.
Applications Storage Tank Piping
Meeting the storage tank piping needs of the petroleum and chemical industries.

Petroleum Storage Facilities
Suitable for floating roof drainage and related transfer systems in petroleum storage tanks.

Petrochemical Storage Tanks
Addresses the corrosion resistance and piping stability requirements of chemical storage tank environments.

Floating Roof Tank Drainage
Accommodates the rise and fall of the floating roof while maintaining drainage line continuity and reliability.

Industrial Tank Fire Protection
Supports firefighting foam delivery to the seal area of floating roof tanks.
