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Water plugging airbag for home PVC pipeline repair
1. What is a Water Plugging Airbag?
2. Key Selection Criteria for Home Use
2.1 Pipe Diameter Matching
PVC Pipe Diameter | Recommended Airbag Model | Inflation Pressure | Weight |
50mm | HX50-A | 0.15 MPa | 0.015kg |
75mm | HX75-A | 0.15 MPa | 0.020kg |
110mm | HX100-A | 0.15 MPa | 0.32kg |
Note: Never use a smaller airbag for a larger pipe (risk of failure). |
2.2 Material Compatibility
Enhanced Natural Rubber: Best for general PVC pipes (corrosion-resistant, flexible, reusable).
TPU Composite: For long-term use (2-year lifespan) and acidic wastewater pipes.
Avoid recycled rubber products (poor airtightness).
2.3 Pressure Rating
3. Step-by-Step Operation Guide
3.1 Pre-Operation Preparation
Inspect the Airbag: Inflate to 0.15MPa with a hand pump; check for leaks using soapy water.
Clean the Pipe: Remove debris, burrs, or sharp objects (prevents punctures).
Assemble Tools: Connect airbag → pressure gauge → 6m air hose → pump.
3.2 Installation & Inflation
Insert the Airbag: Roll it vertically and place 30cm away from pipe joints/elbows (joints reduce sealing performance).
Secure Connections: Tie the air hose to the airbag with wire (prevents detachment).
Inflate Gradually:
Start with slow inflation (0.05MPa/min)
Stop at the recommended pressure (e.g., 0.25MPa for 110mm pipes)
Monitor the gauge—rapid pressure spikes indicate blockage (release air immediately).
3.3 Post-Repair Removal
Deflate completely (open the air valve for 2 minutes)
Pull out gently (avoid dragging to prevent scratches)
Clean with water and store in a dry, cool place.
4. Safety & Maintenance Tips
Pressure Limits: Never exceed 0.3MPa (risk of bursting); check pressure hourly during repairs.
Pipe Protection: Do not use on pipes with cracks or uneven inner walls (may cause airbag damage).
Lifespan Management: Replace natural rubber airbags every 12 months; TPU models every 2 years.
Emergency Handling: If pressure drops suddenly, stop work and repressurize—leaks often occur at hose connections.
5. Top Recommendations for Home Use
Brand | Model | Price Range | Key Advantage |
Fuli | 110# | (15–)30 | Acid-resistant, compact design |
Jerry Borg | HX100-A | (30–)50 | High-pressure resistance |
Generic | PVC Valve Airbag | (8–)15 | Budget-friendly for small pipes |
Source: Manufacturers’ data & market listings |
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