Basic Characteristics of PVC Suction Hose
PVC Suction Hose is a flexible pipe made from polyvinyl chloride (PVC) and reinforced with polyester fiber layers, designed for suction applications involving water, air, and non-corrosive granular materials (e.g., sand). The outer wall features spiral PVC reinforcement ribs (plastic ribs) to enhance pressure resistance while maintaining flexibility. Common colors include orange (industrial use), yellow, and black (UV-resistant). Standard lengths are 20/30 meters, with diameters customizable from 25-150mm.
Advantages over rubber hoses:
35%-40% lighter weight, allowing for easy handling and deployment
Smooth inner wall (friction coefficient: 0.008) reduces water flow resistance
Approximately 25% lower cost
Limitations:
Becomes stiff in low temperatures (< -5°C); recommended to coil for winter storage
For prolonged sun exposure, choose UV-resistant models
Typical applications: Agricultural irrigation, construction site dewatering, municipal emergency water pumping, etc.
Key Performance Parameters
Pressure Resistance: Working pressure 4-10bar, burst pressure up to 2x working pressure
Flow Efficiency: 100mm diameter achieves ~80m³/h flow rate at 6bar
Abrasion Resistance: Reinforced ribs improve wear resistance by 3x compared to standard PVC hoses
Temperature Range: -5°C to +60°C
Pressure Rating Table for PVC Reinforced Hose (No Steel Wire)
| Inner Diameter (mm) | Wall Thickness (mm) | Working Pressure (bar) | Burst Pressure (bar) | Suitable Pump Type |
|---|---|---|---|---|
| 25-32 | 1.8-2.0 | 8 | 16 | Small centrifugal pump |
| 40-50 | 2.0-2.2 | 7 | 14 | Diesel pump |
| 65-80 | 2.3-2.5 | 6 | 12 | Electric submersible pump |
| 100-150 | 2.8-3.2 | 4-5 | 8-10 | Large drainage pump |
Note: Data based on 20°C water testing; reduce rating when handling granular materials.
Selection & Installation Guidelines (Bullet Points)
Diameter Matching:
25-50mm: Suitable for low-flow pumping (<30m³/h)
65-100mm: Ideal for medium drainage (50-100m³/h)
150mm: Used for high-flow emergency pumping
Pressure Compatibility: Select a working pressure ≥1.5x the pump’s max output
Installation Best Practices:
Lay with ribs facing outward for better abrasion resistance
Secure joints with stainless steel clamps (torque ≥2.5N·m)
Support suspended sections every 1.5 meters
Terrain Adaptability:
Flat surfaces: Direct laying
Rocky terrain: Use protective sleeves
Maintenance & Troubleshooting
Routine Maintenance:
Flush inner walls after use to prevent sediment buildup
Coil storage diameter ≥15x hose diameter
Common Issues & Solutions:
Deformation: Soak in 60°C hot water to restore shape
Leaky Fittings: Replace O-rings (ensure size matches hose diameter)
Cracked Ribs: Temporarily wrap with PVC repair tape
Typical Use Cases
Agriculture: 50mm transparent hose with centrifugal pumps for visible water flow
Construction Sites: 80mm blue hose for dewatering excavations
Pond Management: 100mm black hose for algae-filled water (UV-resistant)
Municipal Drainage: 150mm reinforced hose for short-term silt pumping (requires filters)
