Water Discharge Hose – Technical Specifications
1. Product Overview
Water discharge hoses are flexible rubber hoses designed for transferring water, light slurries, and inert fluids in industrial, construction, mining, and agricultural applications. They are typically textile-reinforced and available in both discharge-only and suction/discharge configurations.
2. Applicable Standards
| Standard | Description |
|---|
| ISO 4641:2024 | Rubber hoses and hose assemblies for water suction and discharge — Specification |
| Safety Factor | 3:1 or 4:1 (burst pressure to working pressure ratio) |
3. Structural Composition
| Component | Material | Key Characteristics |
|---|
| Inner Tube | Black synthetic rubber (SBR, EPDM, or NR) | Smooth bore, water-resistant, limited oil resistance |
| Reinforcement | High-tensile synthetic textile (polyester) | Multiple plies (2 to 8 plies) for pressure containment |
| Cover | Black synthetic rubber (SBR or EPDM) | Weather, ozone, and abrasion resistant; wrapped or smooth finish |
4. Performance Specifications
| Parameter | Standard Duty | Heavy Duty / High Pressure |
|---|
| Working Pressure | 150 psi (10 bar) | Up to 300 psi (20 bar) |
| Burst Pressure | 435 – 450 psi (30 bar) | 900 psi (60 bar) |
| Safety Factor | 3:1 | 4:1 |
| Temperature Range (Ambient) | -25°C to +70°C (-13°F to +158°F) | -40°C to +70°C (-40°F to +158°F) |
| Temperature Range (Water) | 0°C to +70°C (32°F to +158°F) | -40°C to +121°C (-40°F to +250°F) |
| Bend Radius | Varies by ID (e.g., 15 inches for 1.5" ID) | Varies by construction |
