Water hose
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Water hose classification
Classification Basis
Type
Technical Characteristics
By Material
Rubber-lined Fire Hose
Natural/synthetic rubber lining, wear-resistant and pressure-resistant (working pressure ≥1.0MPa)
PVC-lined Fire Hose
Polyvinyl chloride lining, lightweight (30% lighter than rubber), excellent corrosion resistance
Polyurethane-lined Fire Hose
High elasticity, low flow resistance, suitable for high-pressure scenarios (burst pressure ≥3.0MPa)
By Working Pressure
Low-pressure Hose (0.8~1.3MPa)
Civil building general fire, mainly 65mm in diameter
Medium-pressure Hose (1.3~2.5MPa)
Industrial fire, with Kevlar reinforcement layer, diameter 50~80mm
High-pressure Hose (≥2.5MPa)
Petrochemical/special rescue, metal wire braided reinforcement, burst pressure ≥4.8MPa
By Structure
Single-layer Braided Hose
Basic type, suitable for indoor fire hydrants
Double-layer Braided Hose
Outer layer aramid + inner layer polyester, abrasion resistance increased by 40%
Coated Hose
Externally coated with polyurethane water layer, mold-proof and UV-resistant (outdoor service life ≥5 years)
Core manufacturing process
Production Process
Key Technical Links
Process Parameters
Raw Material Pretreatment
Desizing Treatment of Polyester/Aramid Yarn
Tension control ±2%, Desizing Rate 12±0.5%
Weaving Forming
High-speed Circular Loom (16~24 Spindles)
Weaving Angle 54°~56°, Warp and Weft Density ≥16 Needles/cm²
Liner Lamination
Extrusion Lamination (Rubber/PVC/Polyurethane)
Temperature Control: Rubber 160°C±5°C, PVC 130°C±3°C
Vulcanization Shaping
Steam Vulcanization Treatment
Pressure 0.4MPa, Time 45min (for Rubber Liner)
Performance Enhancement
Outer Coating Spraying/Flam retardant Treatment
Flame Retardant Index ≥28% (GB/T 5455 Standard)
Quality Inspection
Hydrostatic Test + Burst Test
1.5 Times Working Pressure for 30s without Leakage, Burst Pressure ≥3 Times of Rated Pressure
Application areas and performance requirements
Application Scenario
Typical Specification
Key Performance Indicators
Building Fire Protection
65mm Low-pressure Rubber Hose
Length 20m/roll, Bending Radius ≤800mm, Minimum Flow Rate ≥480L/min
Industrial Fire Protection
80mm Medium-pressure Polyurethane Hose
Oil Resistance (After 24h Immersion, Strength Retention ≥90%), Temperature Resistance -30℃~+80℃
Forest Fire Fighting
40mm High-pressure Lightweight Hose
Self-weight ≤0.8kg/m, Abrasion Resistance ≥2000 Cycles (ISO 4649 Standard)
Special Rescue
Anti-static Hose (Chemical Plant)
Surface Resistance ≤10⁹Ω, Explosion-proof Certification (ATEX/IECEX)
Vehicle-mounted Water Supply
Quick-connect Hose (DN65/DN80)
Aluminum Alloy Connector, Connection Completed within 30 Seconds, Sealing Pressure ≥2.5MPa
Water hose
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