CJan Fluid Technology Co., Ltd.

BLOG

LCH-SDS Ultra-Flexible Fire Resistant EPDM Hose for Data Center Liquid Cooling Systems

2026/08/03Clicks:6

LCH-SDS Ultra-Flexible Fire Resistant EPDM Hose for Data Center Liquid Cooling Systems

Advanced Coolant Transfer Solution for AI Data Centers, HPC and Semiconductor Cooling Applications

The rapid expansion of artificial intelligence (AI), high-performance computing (HPC), and cloud data centers is driving the demand for more efficient thermal management solutions. As server power density continues to increase, liquid cooling systems are becoming essential for maintaining stable operating temperatures and improving energy efficiency.

In modern liquid cooling infrastructure, hose performance directly affects system reliability. Cooling hoses must provide excellent flexibility, chemical compatibility, fire resistance, and long-term durability while operating continuously in demanding environments.

The LCH-SDS ultra-flexible fire resistant EPDM hose is specially designed for data center and semiconductor liquid cooling systems, combining high-purity EPDM materials, spiral wire reinforcement, and corrugated outer design to achieve superior flexibility and reliable coolant transfer performance.


Why Do Data Center Liquid Cooling Systems Need Ultra-Flexible Hoses?

Liquid cooling systems are often installed in compact environments such as server racks, cooling distribution units (CDUs), and equipment cabinets. Limited installation space requires hoses that can be routed easily while maintaining pressure performance and service reliability.

Traditional rubber hoses may have limitations in tight installation areas due to larger bending radius and reduced flexibility.

A high-performance liquid cooling hose should provide:

  • Small bending radius
  • Excellent flexibility
  • Stable pressure resistance
  • Low coolant permeability
  • Fire-resistant protection
  • Long service life

LCH-SDS is engineered for space-limited liquid cooling applications, providing enhanced bending performance through its corrugated outer structure while maintaining reliable mechanical strength.


Key Advantages of LCH-SDS Liquid Cooling Hose

1. High-Purity EPDM Inner Tube for Clean Coolant Handling

The inner tube of LCH-SDS is manufactured from black smooth anti-static peroxide-cured high-purity EPDM synthetic rubber.

EPDM provides excellent resistance to many water-based cooling fluids and offers stable performance during long-term operation.

The high-purity inner layer helps minimize:

  • Coolant contamination
  • Material extraction
  • Fluid discoloration
  • Particle generation

The smooth inner surface supports stable coolant flow and helps maintain system cleanliness.


2. UL94-V0 Fire Resistant Construction for Critical Facilities

Safety is a major concern in modern data centers and semiconductor manufacturing environments.

LCH-SDS uses a high-purity fire-resistant peroxide-cured EPDM outer cover with UL94-V0 flame resistance performance.

The fire-resistant design provides additional protection for applications including:

  • AI data centers
  • Cloud computing infrastructure
  • Semiconductor equipment
  • High-performance computing systems

3. Ultra-Flexible Corrugated Outer Design

The key feature of LCH-SDS is its enhanced flexibility.

The specially designed corrugated outer surface improves bending capability and allows easier routing in complex installation environments.

Compared with conventional smooth-cover hoses, LCH-SDS provides:

  • Smaller bending radius
  • Easier installation
  • Better space utilization
  • Reduced installation stress

This makes it especially suitable for liquid cooling systems where hoses must be installed around dense server layouts and compact equipment structures.


4. Spiral Wire Reinforcement for Reliable Operation

LCH-SDS incorporates an internal spiral steel wire structure combined with polyester fiber or customized aramid yarn reinforcement.

The reinforced construction improves:

  • Pressure stability
  • Mechanical strength
  • Anti-collapse performance
  • Long-term durability

This design ensures reliable operation under continuous liquid cooling conditions.


5. Excellent Gas Tightness to Reduce Coolant Loss

Coolant stability is essential for efficient liquid cooling operation.

LCH-SDS provides improved gas tightness compared with standard rubber hoses, helping reduce coolant permeation and fluid loss during long-term use.

Benefits include:

  • Stable cooling performance
  • Reduced maintenance requirements
  • Lower operating costs
  • Improved system reliability

LCH-SDS Hose Construction

The LCH-SDS hose features a multi-layer reinforced structure designed for demanding liquid cooling environments.


Inner Tube

Material:
Black smooth anti-static peroxide-cured high-purity EPDM synthetic rubber.

Functions:

  • Ensures coolant compatibility
  • Maintains fluid cleanliness
  • Reduces contamination risks

Reinforcement Layer

Structure:
Polyester fiber or customized aramid yarn reinforcement with embedded spiral steel wire.

Functions:

  • Enhances pressure capability
  • Improves structural stability
  • Supports flexible installation

Outer Cover

Material:
High-purity fire-resistant peroxide-cured EPDM synthetic rubber.

Features:

  • UL94-V0 flame resistance
  • Excellent environmental durability
  • Corrugated flexible surface design

Technical Specifications

Item Specification
Product Name Ultra-Flexible Fire Resistant Rubber Hose for Data Center Liquid Cooling
Model LCH-SDS
Inner Tube Material High Purity EPDM
Reinforcement Polyester Fiber / Aramid Yarn + Spiral Steel Wire
Working Pressure 10-16 Bar
Safety Factor 4:1
Working Temperature -40°C to +100°C
Fire Rating UL94-V0
Surface Design Corrugated Fabric Cover
Available Colors Black / Red / Blue
Environmental Compliance RoHS, REACH

LCH-SDS Standard Sizes

Model ID OD Minimum Bend Radius Working Pressure Burst Pressure Coil Length
LCH032-SDS 32 mm 42 mm 45 mm 1.0 MPa 4.0 MPa 30/60 m
LCH038-SDS 38 mm 49.5 mm 55 mm 1.0 MPa 4.0 MPa 30/60 m
LCH051-SDS 51 mm 61 mm 76 mm 1.0 MPa 4.0 MPa 30/60 m
LCH076-SDS 76 mm 87.5 mm 76 mm 1.0 MPa 4.0 MPa 30/60 m
LCH0102-SDS 102 mm 113 mm 102 mm 1.0 MPa 4.0 MPa 30/60 m

Compatible Cooling Fluids

LCH-SDS is suitable for many commonly used liquid cooling media, including:

  • Purified water
  • Deionized water (DI Water)
  • Ethylene glycol
  • Propylene glycol
  • Fluorinated cooling fluids

For specific applications, coolant compatibility should be evaluated based on the actual fluid formulation and operating conditions.


Applications of LCH-SDS Hose

Data Center Liquid Cooling Systems

LCH-SDS is designed for:

  • AI server cooling systems
  • High-density computing racks
  • CDU cooling loops
  • Cloud data center infrastructure

Its flexible design helps simplify installation in complex server environments.


Semiconductor Equipment Cooling

Semiconductor manufacturing equipment requires stable temperature control and reliable fluid circulation.

LCH-SDS provides a flexible and durable cooling connection solution for semiconductor process equipment.


Advanced Industrial Cooling Systems

Suitable applications include:

  • Energy storage cooling
  • Industrial thermal management
  • Precision equipment cooling systems

How to Select the Right Liquid Cooling Hose?

Selecting the correct hose is important for maintaining long-term cooling system performance.

1. Evaluate Coolant Compatibility

The hose material must be compatible with the selected coolant to prevent contamination and premature aging.

2. Consider Installation Space

For compact server racks and equipment layouts, flexible hoses with smaller bending radius can significantly simplify installation.

3. Check Fire Safety Requirements

Critical facilities such as data centers and semiconductor plants require materials with reliable fire performance.

4. Focus on Long-Term Reliability

Continuous operation requires hoses with stable pressure performance, low permeability, and excellent durability.


Frequently Asked Questions

Q1: What is LCH-SDS designed for?

LCH-SDS is designed for data center liquid cooling systems, AI server cooling applications, semiconductor equipment cooling, and other high-performance thermal management systems.


Q2: What makes LCH-SDS different from standard liquid cooling hoses?

LCH-SDS features a corrugated outer structure that provides superior flexibility and a smaller bending radius, making it easier to install in limited spaces.


Q3: What cooling fluids are compatible with LCH-SDS?

LCH-SDS can be used with purified water, DI water, glycol-based coolants, and commonly used fluorinated cooling fluids.


Q4: Is LCH-SDS fire resistant?

Yes. The hose uses a UL94-V0 fire-resistant EPDM outer cover designed for high-safety environments.


Conclusion

As AI computing and high-density data centers continue to grow, liquid cooling systems require components that provide both performance and installation flexibility.

CJan Fluid Technology Co., Ltd. developed the LCH-SDS ultra-flexible fire resistant EPDM hose to meet the demanding requirements of modern liquid cooling applications. Combining high-purity EPDM materials, UL94-V0 fire resistance, spiral wire reinforcement, and corrugated flexible design, LCH-SDS provides a reliable coolant transfer solution for data centers, semiconductor equipment, and advanced cooling systems.

Related Articles
back to the top