Chemical Composite Hose

The JIDONGDA Chemical Composite Hose is specifically designed for the loading, unloading, storage, transport, and short-distance transfer of aggressive and hazardous media, such as strong acids, alkalis, and organic solvents. Outperforming traditional rubber or metal hoses, this product features a composite construction consisting of layers of chemically resistant films and a metal helix. This design ensures low weight and high flexibility while maintaining excellent sealing integrity and chemical compatibility, making the hose an essential component of systems for transporting hazardous chemical fluids.

Design features of the product

1. Highly corrosion-resistant inner layer

Options include PTFE (fluoroplastic), UHMWPE (ultra-high-molecular-weight polyethylene), or modified polymer materials; it is resistant to various acids, alkalis, and organic solvents, and is not prone to swelling or degradation.

2. Multi-layer permeation barrier

A multi-layer film structure effectively blocks the diffusion of chemical molecules, eliminates the risk of micro-leaks, and enhances operational safety.

3. Load-bearing layer (stainless steel helix)

An internal helical framework (Grade 304 or 316 steel) prevents the hose from collapsing under negative pressure, ensuring unobstructed flow of the medium.

4. Wear-resistant outer layer

An outer covering made of abrasion-resistant fiber or PVC protects against mechanical damage (friction, impact) during operation, thereby extending the product's service life.

Areas of Application

A versatile solution suitable for transferring hazardous chemical media across various industries:

1. Basic chemicals: Loading, unloading, and transfer of acidic and alkaline liquids, organic solvents, and chemical intermediates;

2. Petrochemical storage and transport: transfer systems for oil depots, chemical tank farms, and loading arms;

3. Port and marine sectors: ship-to-shore transfer operations at chemical terminals and for chemical tankers;

4. Fine chemicals and pharmaceuticals: transfer of high-purity pharmaceutical intermediates and chemical media requiring high purity levels;

5. Hazardous goods transport: safe loading and unloading of flammable and explosive chemicals;

6. Industrial cleaning: circulation and transfer of various industrial cleaning fluids and specialty solvents.

Key Product Characteristics

1. Superior corrosion resistance: compatible with the vast majority of strong acids, alkalis, and industrial solvents;

2. High safety and leak prevention: a multi-layer composite barrier structure significantly reduces the risk of leaks;

3. Lightweight and easy to handle: lighter than traditional rubber hoses, simplifying operation and installation;

4. Controlled static safety: antistatic properties, suitable for use in fire- and explosion-prone environments;

5. High flexibility and kink resistance: adaptable to complex piping layouts and suitable for mobile loading/unloading operations;

6. Operational reliability: suitable for long-term use with high-frequency loading/unloading cycles; low failure rate and extended service life.

Customization Options

JIDONGDA offers custom-manufactured products for extreme operating conditions, including full PTFE lining, corrosion-resistant UHMWPE versions, food-grade certified models, explosion-proof/antistatic designs, low-temperature (down to -60°C) and high-temperature (up to 180°C) models, 316L stainless steel spirals, and flange connections compliant with ANSI, DIN, or JIS standards.

Key Product Advantages

Specially designed for handling highly aggressive chemical media; high safety levels due to a multi-layer structure that prevents substance permeation (diffusion); compliant with safety standards for high-risk chemical processing facilities; lightweight and highly flexible, reducing installation costs; compliant with regulations for the transport of hazardous goods.

Frequently Asked Questions

Q1: What is the main difference between the JIDONGDA Chemical Composite Hose and standard rubber chemical hoses?

A1: Standard rubber hoses feature a single-layer structure, making them susceptible to corrosion and swelling upon contact with organic solvents; they are heavy, lack anti-static properties, and are suitable only for transferring standard media. JIDONGDA composite hoses feature a multi-layer polymer structure resistant to permeation and are reinforced with a stainless steel helix. They offer superior resistance to corrosion and diffusion, reduced weight, and an integrated static dissipation system. These hoses are suitable for handling flammable, explosive, and highly aggressive media, with a service life 3–5 times longer than that of standard rubber hoses.

Q2: Can this hose be used under negative pressure (vacuum) conditions? Will it collapse or deform?

A2: Yes, it is suitable for vacuum loading and unloading operations involving tanks and tanker trucks. The product features an integrated stainless steel helical reinforcement that reliably withstands negative pressure, preventing hose collapse or flow obstruction, thereby ensuring safety during prolonged full-vacuum operation.

Q3: How do I select the appropriate inner liner material for various chemical media?

A3: A PTFE inner liner is the optimal choice for high-temperature solvents, strong oxidizing agents (acids), and high-purity pharmaceutical media; a UHMWPE inner liner is suitable for dilute acids/alkalis and oil and gas mixtures, offering excellent cost-effectiveness; food-grade liners are available for clean manufacturing processes in the food and pharmaceutical industries. You can provide your operating parameters, and JIDONGDA's technical specialists will precisely select the optimal solution to meet your needs.