Certified Standards For Silicone Vacuum Hose
Features of Legensilico Silicone Vacuum Hose
- Odorless, non-toxic, and environmentally friendly
- Manufactured from 100% virgin materials
- Features a thick-walled silicone construction
- Withstands high-vacuum conditions up to 5 bar
- Excellent flexibility
- Good weather resistance, UV resistance, and ozone resistance
- Operating temperature range: -40°C to 220°C
Legensilico-Your Reliable Silicone Vacuum Hose Manufacturer in China
Legensilico is a silicone vacuum hose manufacturer based in China that specializes in producing custom silicone vacuum hoses for the automotive, industrial, laboratory, medical, HVAC, and various equipment sectors. Our vacuum hoses are made from high-quality silicone and offer excellent flexibility, temperature resistance, weather resistance, and durability, making them ideal for demanding air and vacuum conveyance applications.
We offer custom silicone vacuum hose manufacturing services, tailored to your specific requirements for inner diameter, outer diameter, wall thickness, length, hardness, color, shape, and connection design. Whether you need straight hoses, bent hoses, reinforced vacuum hoses, or custom molded products, Legensilico can provide comprehensive support.
Different Types of Silicone Vacuum Hose at Legensilico
Legensilico offers different types of silicone vacuum hoses for automotive, industrial, medical, and fluid-handling applications. Available options include straight, reinforced, braided, elbow, U-shaped, S-shaped, and custom-profile hoses.
Standard straight silicone vacuum hoses are suitable for general vacuum and air-routing applications. Different diameters, lengths, hardness levels, and colors can be customized.
Reinforced silicone vacuum hoses incorporate additional reinforcement to improve dimensional stability and structural support for demanding applications.
Automotive silicone vacuum hoses are designed for vacuum, air, and engine-related applications where flexibility and temperature resistance are important.
Pre-formed elbow hoses provide directional changes while reducing the need for additional fittings. They are suitable for compact installations and complex hose routing.
Different Colors of Silicone Vacuum Hose
Silicone vacuum hoses are available in different colors for product identification, system organization, branding, and application requirements. Common options include:
Black silicone offers excellent heat resistance, UV resistance, and weather resistance, making it suitable for use in the automotive, industrial, and equipment sectors.
It combines flexibility, heat resistance, and easy visual identification. It is suitable for vacuum lines, air systems, automotive applications, and industrial equipment where color-coding is required to distinguish between lines.
Its vivid red color makes it easy to identify, making it suitable for applications such as automotive, industrial, and custom equipment.
Not only is it flexible, but it also allows for visual inspection of the hose’s condition and the flow of fluid inside it. It is suitable for vacuum, air, fluid, and equipment applications that require transparency and ease of monitoring.
Different Size of Silicone Vacuum Hose in legensilico
Silicone vacuum hoses are available in different inner diameters, outer diameters, and wall thicknesses to fit different vacuum systems and connection requirements. Common sizes include:
This is a compact, flexible hose designed specifically for small vacuum and air delivery systems. Its small inner diameter makes it suitable for precision applications, compact equipment, and confined installation spaces.
It strikes a good balance between compact size, flexibility, and reliable vacuum performance. It is suitable for small equipment, automotive systems, laboratory setups, and custom vacuum applications.
This is a flexible silicone hose designed for vacuum, air, and fluid transfer. Its compact size makes it suitable for use in automotive applications, pneumatic systems, laboratories, and industrial equipment.
Designed specifically for flexible vacuum and air delivery applications that require reliable performance and easy tubing installation. The color, length, hardness, and other specifications can all be customized.
It strikes a practical balance between flow capacity and flexibility. It is suitable for automotive vacuum systems, pneumatic equipment, industrial machinery, and custom fluid or air delivery applications.
This is a large-bore flexible hose designed specifically for applications requiring higher air or fluid flow rates. The hose offers excellent flexibility and temperature resistance, making it suitable for use in the automotive, industrial, and various equipment sectors.
Designed for applications requiring a larger internal diameter, including industrial vacuum and air-handling systems.
Legensilico can manufacture custom-size silicone vacuum hoses according to your required inner diameter, outer diameter, wall thickness, length, hardness, color, and reinforcement structure.
How We Turn Silicone Into Reliable Products
We support customized silicone products from mold design and material selection to mass production and final quality inspection.
- Manufacturing Process
- Technical Specifications
| Material | 100% silicone |
| Temperature Range | -60°C to +200°C |
| Manufacturing Process | Silicone Extrusion / Molding |
| Inner Diameter (ID) | 3- 25 mm (custom sizes available) |
| Outer Diameter (OD) | 5mm – 60mm (custom sizes available) |
| Wall Thickness | 1mm – 5mm or custom |
| Hardness | Typically 50–70 Shore A; custom available |
| Color | Clear, Orange, Red, Blue, Black, Green, or Custom |
| Surface Finish | Matte, Glossy, and Satin |
| Construction | Non-Reinforced or Reinforced |
| Shape | Straight, Elbow, U-Shaped, Custom |
| Length | 5- 10 m or custom |
| Vacuum Rating | Full vacuum (29.9 in./Hg) |
| Working Pressure | 0.3 – 0.9 MPa Up to 1.5 MPa |
Applications of Silicone Vacuum Hose

Legensilico silicone vacuum hoses are specifically designed for a wide range of air, vacuum, and fluid transfer applications.
Automotive & Motorsport
Suitable for applications such as vacuum ignition advance systems, turbocharger lines, MAP sensor intake tubes, coolant overflow lines, and emission control systems. Even under high-temperature conditions and constant vibration in the engine compartment, our hoses maintain excellent flexibility and structural integrity.
Medical & Pharmaceutical
Medical-grade silicone vacuum tubing complies with USP Class VI and ISO 10993 biocompatibility standards, making it an ideal choice for sterilization equipment, CIP/SIP systems, and pharmaceutical vacuum conveying. The product is manufactured in a controlled environment and features full batch traceability.
Industrial & Laboratory
Steel-reinforced, four-layer braided silicone vacuum hoses are suitable for machinery, vacuum systems, automated equipment, pneumatic systems, and industrial equipment requiring flexible air or vacuum connections. A corrugated hose option is available, facilitating routing in confined spaces and minimizing the risk of kinking.
HVAC and Air Systems
Silicone vacuum hoses can be used for air delivery, sensor lines, vacuum connections, and specialized HVAC equipment.
Food and Beverage Equipment
Food-grade silicone vacuum hoses suitable for filling lines, vacuum conveying systems, CIP (Clean-in-Place) circuits, and dairy processing. Free of BPA (bisphenol A), latex, and phthalates. The smooth inner wall prevents residue buildup, ensuring hygienic and safe fluid transfer.
Electronics and Semiconductor Equipment
Flexible silicone vacuum hoses can be used in specialized equipment requiring high-temperature resistance, flexibility, and the transport of clean air or vacuum.
Why Choose Legensilico Silicone Vacuum Hose?
Flexible and Durable Silicone Construction
The hose features thick walls that withstand high pressure, bend tightly without collapsing, and provide excellent sealing. It maintains its flexibility during bending and installation, making it ideal for applications requiring wiring in tight or complex spaces.
Excellent Flexibility and Tensile Strength
This hose features a double-thickness (heavy-duty) sidewall design, ensuring exceptional flexibility, resistance to kinking, and no collapse even in deep vacuum environments. Under normal operating conditions, it can stretch to more than six times its original length without breaking; furthermore, even if cracks form, the hose will not immediately break or detach.
Outstanding Temperature Resistance
Manufactured from high-quality silicone, it maintains excellent vacuum performance across a temperature range of -65°F to 300°F.
Outstanding Weather and Ozone Resistance
Silicone offers strong resistance to UV radiation, ozone, and outdoor environmental corrosion, ensuring reliable performance even in harsh conditions.
Smooth Inner Surface
The smooth inner surface helps improve the efficiency of air and vacuum flow while simplifying cleaning and maintenance, making it suitable for a wide range of applications.
Silicone Vacuum Hose Manufacturing Process
Legensilico follows strictly controlled manufacturing processes to ensure product quality and dimensional consistency.
Material Selection → Silicone Compounding → Extrusion or Molding → Cutting/Forming → Inspection → Performance Testing → Final Quality Control → Packaging
Depending on the product design, silicone vacuum hoses can be manufactured using silicone extrusion, compression molding, or other suitable processing methods.
Silicone Vacuum Hose vs Rubber

Both silicone and rubber vacuum hoses are used for air and vacuum conveyance, but they differ in terms of temperature resistance, flexibility, environmental durability, and suitable applications.
| Feature | Silicone Vacuum Hose | Rubber Vacuum Hose |
| Material | Silicone rubber / VMQ | EPDM, NBR, or other rubber |
| Temperature Resistance | Excellent | Good to excellent, depending on rubber type |
| Flexibility | Excellent | Good |
| UV & Ozone Resistance | Excellent | Varies by rubber type |
| Weather Resistance | Excellent | Good to moderate |
| Long-Term Flexibility | Generally excellent | May harden or age over time |
| Chemical Resistance | Good, application dependent | Varies significantly by rubber type |
| Custom Colors | Wide range | Usually more limited |
| Appearance | Smooth, clean appearance | Typically darker/black |
| Typical Applications | Automotive, industrial, laboratory, specialized equipment | Automotive, industrial, general-purpose systems |
| Cost | Generally higher | Generally lower |
In summary, silicone vacuum hoses are typically chosen when the application requires high flexibility, temperature resistance, UV/ozone resistance, and long-term environmental durability.
For general-purpose vacuum and air conveyance applications, rubber hoses are a practical choice, especially when cost, abrasion resistance, or specific chemical resistance are priority considerations.
What is the difference between silicone vacuum hose and PVC clear hose?

The main differences lie in the materials and performance characteristics. Silicone vacuum hoses are specifically designed for applications requiring flexibility, temperature resistance, and stability, while clear PVC hoses are typically used for low-cost, general-purpose fluid or air transport and are particularly suitable for applications requiring visual inspection.
| Feature | Silicone Vacuum Hose | PVC Clear Hose |
| Material | Silicone rubber | PVC |
| Appearance | Clear, translucent, or colored | Usually transparent/clear |
| Flexibility | Excellent | Good, but varies with formulation |
| Temperature Resistance | Excellent | Lower |
| UV/Ozone Resistance | Excellent | Moderate |
| Low-Temperature Flexibility | Generally good | Can become stiff |
| Vacuum Performance | Suitable for specified vacuum applications | Depends on hose construction; may collapse under higher vacuum |
| Chemical Resistance | Good, application dependent | Good for many chemicals, but formulation dependent |
| Odor | Generally low | May have a noticeable plastic odor |
| Transparency | Available | Excellent |
| Typical Applications | Vacuum systems, automotive, industrial equipment, laboratory equipment | Water, air, drainage, low-pressure fluid transfer |
| Cost | Generally higher | Generally lower |
In summary, if you need better temperature resistance, flexibility, UV/ozone resistance, or superior performance in demanding vacuum or air conveyance applications, choose silicone vacuum hose.
If you prioritize transparency, general-purpose fluid transfer, and lower cost over high-temperature or demanding vacuum performance, choose clear PVC hose.
Silicone vacuum hoses are commonly used for vacuum lines, air-routing systems, sensors, laboratory equipment, industrial machinery, HVAC equipment, and automotive applications. The appropriate hose construction depends on the required vacuum level, temperature, chemical exposure, and installation conditions.
Yes. Silicone hose can be used for specified vacuum applications when the hose’s dimensions, wall thickness, hardness, and construction are suitable for the required vacuum level. For higher vacuum requirements, reinforced or specially designed silicone hose may be necessary to reduce the risk of hose deformation or collapse.
Yes. The inner diameter and outer diameter can be customized according to your equipment connection, required airflow, installation space, and application requirements. Customers can provide drawings, samples, or dimensional specifications for evaluation.
Yes. Depending on the manufacturing method and design, Legensilico can produce straight hoses, bent hoses, elbow configurations, U-shaped hoses, and other custom geometries.
Pre-formed silicone hoses can help simplify installation where a standard straight hose would require multiple bends or connectors.
Yes. Silicone vacuum hoses can be produced in various colors, including clear, black, blue, red, and other custom colors, subject to the selected silicone formulation and production requirements.
Depending on the product design, the manufacturing processes for silicone hoses may include silicone extrusion, compression molding, machining, cutting, and post-processing.
The specific manufacturing methods depend on the hose’s geometry, dimensions, production batch size, and performance requirements.
Yes. Legensilico can customize silicone vacuum hoses based on customers’ drawings, samples, specifications, and application requirements.
Customization options include inner diameter, outer diameter, wall thickness, length, hardness, color, shape, bend angle, reinforcing ribs, hose fittings, and packaging, among others.


























