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SS Flexible Hose Sizes
QualityFlex offers a wide range of stainless steel flexible hoses designed to meet the needs of various industrial applications. Our flexible metal hoses are available in sizes ranging from 1/4″ to 10″ in diameter, with additional customizations available for specific requirements. Each hose is constructed with a corrugated stainless steel liner, providing exceptional flexibility and pressure resistance.
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Technical Specifications of Stainless Flexible Hoses
| Stainless Steel Grades | Available in AISI 304, 321, and 316L |
|---|---|
| Multiple Layers | Hoses can be reinforced with single, double, or triple layers of braided stainless steel for increased durability and higher pressure ratings |
| Wide Temperature Range | Suitable for temperatures ranging from -200°C to +650°C |
| Applications | Ideal for suction, chemical transportation, steam transfer, liquid gas, and coolant handling across industries such as pharmaceuticals, food and beverage, oil & gas, and more |
At QualityFlex, we ensure that each hose is tested for performance and reliability, meeting both BS:6501 Part-1 2004 and IS:10380 standards for quality. Choose our stainless steel flexible hoses for long-lasting, high-performance solutions.
Flexible Hose Size
The table provides essential technical data for stainless steel (SS) flexible hoses with braided reinforcements. It outlines the nominal bore sizes (N.B.) from 6mm to 250mm, along with the minimum bend radius for both static and flexing applications, which is crucial for determining the hose’s flexibility and installation requirements. Additionally, the table specifies the maximum working pressure and test pressure (in kg/cm²) for hoses with single and double braiding, ensuring durability and reliability under various pressure conditions.
These factors are important in selecting the right SS flexible hose for your application, balancing both flexibility and pressure requirements.
| NOMINAL BORE | MINIMUM BEND RADIUS | SINGLE BRAID | DOUBLE BRAID |
|---|---|---|---|
| 6 | STATIC: 25 FLEXING: 100 |
Max. working pressure: 100 Test pressure: 150 |
Max. working pressure: 160 Test pressure: 240 |
| 10 | STATIC: 40 FLEXING: 150 |
Max. working pressure: 90 Test pressure: 135 |
Max. working pressure: 144 Test pressure: 216 |
| 12 | STATIC: 50 FLEXING: 200 |
Max. working pressure: 80 Test pressure: 120 |
Max. working pressure: 128 Test pressure: 192 |
| 16 | STATIC: 50 FLEXING: 200 |
Max. working pressure: 70 Test pressure: 105 |
Max. working pressure: 112 Test pressure: 168 |
| 20 | STATIC: 70 FLEXING: 200 |
Max. working pressure: 64 Test pressure: 96 |
Max. working pressure: 102 Test pressure: 153 |
| 25 | STATIC: 90 FLEXING: 200 |
Max. working pressure: 50 Test pressure: 75 |
Max. working pressure: 80 Test pressure: 120 |
| 32 | STATIC: 110 FLEXING: 250 |
Max. working pressure: 40 Test pressure: 60 |
Max. working pressure: 64 Test pressure: 96 |
| 40 | STATIC: 130 FLEXING: 250 |
Max. working pressure: 30 Test pressure: 45 |
Max. working pressure: 48 Test pressure: 72 |
| 50 | STATIC: 175 FLEXING: 350 |
Max. working pressure: 28 Test pressure: 42 |
Max. working pressure: 44 Test pressure: 66 |
| 65 | STATIC: 200 FLEXING: 410 |
Max. working pressure: 24 Test pressure: 36 |
Max. working pressure: 38 Test pressure: 57 |
| 80 | STATIC: 205 FLEXING: 450 |
Max. working pressure: 18 Test pressure: 27 |
Max. working pressure: 28 Test pressure: 42 |
| 100 | STATIC: 230 FLEXING: 560 |
Max. working pressure: 16 Test pressure: 24 |
Max. working pressure: 26 Test pressure: 39 |
| 125 | STATIC: 280 FLEXING: 660 |
Max. working pressure: 12 Test pressure: 18 |
Max. working pressure: 20 Test pressure: 30 |
| 150 | STATIC: 320 FLEXING: 815 |
Max. working pressure: 10 Test pressure: 15 |
Max. working pressure: 16 Test pressure: 24 |
| 200 | STATIC: 435 FLEXING: 1015 |
Max. working pressure: 8 Test pressure: 12 |
Max. working pressure: 12 Test pressure: 18 |
| 250 | STATIC: 560 FLEXING: 1220 |
Max. working pressure: 6 Test pressure: 9 |
Max. working pressure: 10 Test pressure: 15 |
Flexible Hose Sizes Metrics
Choosing the correct flexible hose sizes is most important for efficient system performance. Whether using a large diameter flexible hose or a smaller one, proper sizing ensures durability and functionality. Here are the key factors:
Inner Diameter (I.D.):
The hose’s size is measured by its inner diameter, crucial for adequate flow rates and minimizing pressure loss. Most hoses use inch-based sizing.
Outer Diameter (O.D.):
The O.D. determines compatibility with fittings and does not impact internal flow or pressure.
Wall
Thickness:
Thicker walls offer more durability and pressure capacity, while thinner ones improve flexibility but may reduce lifespan in corrosive environments.
Hose
Length:
Longer hoses increase friction loss, reducing pressure. Consider a larger diameter for longer hoses to prevent pressure drops.
Flow
Rate:
Select the hose size based on the system’s maximum flow rate to ensure smooth operation without pressure loss.
External Protection:
Protective layers like ceramic or rubber sleeves help guard against heat, corrosion, and mechanical damage.
For reliable flexible hose dimensions and large diameter flexible hoses
Contact QualityFlex for tailored solutions to meet your specific industrial needs.
Reinforcement for Stainless Steel Flexible Hoses: Enhancing Durability
Choosing the correct flexible hose sizes is most important for efficient system performance. Whether using a large diameter flexible hose or a smaller one, proper sizing ensures durability and functionality. Here are the key factors:
High Temperatures (up to 650°C):
Reinforced hoses withstand extreme heat while maintaining flexibility.
Electrical Conductivity:
Reinforced hoses ensure safe electrical conductivity where required.
High Pressure or Vacuum:
Braided layers provide strength to resist pressure and prevent elongation.
Vibration and Movement:
Reinforced hoses absorb vibration, preventing premature wear.
Outer Diameter (O.D.): Low Temperatures (down to -196°C):
The O.D. determines compatibility with fittings and does not impact internal flow or pressure.
Long Shelf Life
Reinforcement protects against environmental damage, ensuring durability.
QualityFlex offers customizable reinforced hoses with single, double braiding to suit your specific needs.
Contact us for the best reinforcement options for your application.
Temperature Correction Factor for Stainless Steel Flexible Hoses
When stainless steel flexible hoses are used in high-temperature applications, the working pressure may decrease as the temperature rises. To ensure safe operation, the working pressure provided in standard tables must be adjusted by applying a temperature correction factor.
Here’s how it works:
- Determine the Base Working Pressure: Start with the working pressure given for the hose at room temperature (typically 20°C).
- Apply the Correction Factor: Multiply the base working pressure by the correction factor based on the actual operating temperature. The higher the temperature, the lower the working pressure will be after adjustment.
- Ensure Safety: This adjusted pressure rating ensures the hose can withstand higher temperatures without risking damage or failure.
Qualityflex provides high-quality stainless steel hoses and helps you determine the correct pressure ratings for your high-temperature applications.
FAQS
The flexible hose diameter varies, with sizes ranging from 1/4″ to 10″, depending on the application.
Flexible hose pipe sizes are typically designated by their inner diameter (I.D.), which determines the flow capacity and pressure handling.
The size of a flexible hose refers to its inner diameter, which affects fluid flow and system performance. Larger diameters accommodate higher flow rates.
The maximum length for a large diameter flexible hose typically extends up to 10 meters when fully stretched, depending on the specific application and hose type.