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Fire Immuniser
+91-7829629111
Email: info@variex.in
Varistor Technologies Pvt. Ltd.
Block-1, First Floor, Ardente Office One, Hoodi Circle, ITPL Main Road, Bengaluru, Karnataka 560048, IN
Fire Hose Coupling Sizes | Variex – Best Firefighting Couplings India
Understanding fire hose coupling sizes is crucial for efficient firefighting. Couplings come in different diameters and standards to fit hoses and hydrants securely, ensuring quick deployment and leak-proof performance. Selecting the correct size improves fire safety, water flow, and operational efficiency during emergencies.
VariEX Instantaneous type Male/Female Hose couplings, 63 mm size, conventional design, made of gunmetal, suitable for use with 63 mm firefighting delivery hose.
Fire Hose Coupling Sizes Maximum Fire Protection
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Fire Hose Coupling Sizes – Definition
fire hose coupling sizes refer to the standard diameters and specifications of couplings used to connect hoses, hydrants, and pumps. Commonly measured in millimetres or inches, these sizes ensure compatibility, safety, and optimal water flow during firefighting operations.
Standard Fire Hose Coupling Sizes:
| Coupling Size | Common Use | Hose Diameter |
|---|---|---|
| 25mm | Small hoses, residential | 1 inch |
| 38mm | Medium hoses, industrial | 1.5 inch |
| 50mm | Large hoses, municipal | 2 inch |
| 65mm | High-flow applications | 2.5 inch |
| 75mm | Fire trucks & large operations | 3 inch |
| 100mm | Very high-flow systems | 4 inch |
Types of Fire Hose Couplings
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Instantaneous Coupling – Quick-connect type commonly used in fire brigades
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Male Coupling – Fits into female coupling for hose-to-hose or hose-to-equipment connection
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Female Coupling – Receives male coupling for a tight seal
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Delivery Hose Coupling – Used at hose ends for water discharge
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Suction Hose Coupling – Designed for water intake with higher strength
Material & Construction
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Gunmetal / Brass – Corrosion-resistant and durable
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Aluminium Alloy – Lightweight and easy to handle
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Stainless Steel – Heavy-duty and long-lasting
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Precision-machined for leak-proof performance
Instantaneous Male/Female Coupling product specifications
Make: VariEX
Size: 63 mm
Type: Instantaneous Male / Female Coupling
Material: Stainless Steel SS-304
Standard: IS:903
Working Pressure: 5–14 kgf/cm²
Test Pressure: 21 kgf/cm² (2.5 minutes)
Finish: Natural / Polished
Warranty: 12 Months
Why Choose Variex Fire Hose Coupling Sizes ?
Trust
Why Buy From us ?
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Years of experience in fire safety manufacturing
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ISI-compliant fire hose coupling
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Leak-proof design for high-pressure use
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Precision-engineered for secure connections
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Durable, corrosion-resistant construction
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Trusted across commercial and industrial installations
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Quality-tested for reliable fire protection
Frequently Asked Questions (FAQ'S)
The most common sizes are 25mm, 38mm, 50mm, 65mm, 75mm, and 100mm, depending on application.
Select based on hose diameter, water flow requirements, and hydrant compatibility.
Yes, sizes follow national and international standards to ensure safety and compatibility.
No, using mismatched sizes can cause leaks, reduced water flow, and unsafe operations.
Correct sizing ensures efficient firefighting, safety, and compliance with fire regulations.
VariEx Fire Hydrant Products
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1000+
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150+
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60+
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