WIWA Inject ND 1 – Compact Diaphragm Pump for Precise Injections
In structural waterproofing, crack injection, or cavity filling, precise and controlled injection systems are crucial. The WIWA Inject ND 1 is a pneumatically operated diaphragm pump for low-pressure applications, specifically developed for processing suspensions and injection materials.
Due to its compact design, low air consumption, and simple operation, it is particularly suitable for construction sites where flexibility and mobility are required. In this practical guide, you will learn how the device is used, which settings are useful, and how professionals work efficiently with it.
Product Overview
| Feature | Description |
|---|---|
| Pump Type | Pneumatically operated diaphragm pump |
| Pressure Ratio | 1:1 (Low-pressure system) |
| Max. Flow Rate | approx. 25 l/min (Guideline) |
| Max. Operating Pressure | approx. 8 bar |
| Weight | approx. 5 kg |
| Typical Applications | Cavity filling, masonry injection, crack sealing |
Ideal for construction sites with limited space.
Efficient operation even with smaller compressors.
Pressure regulator allows precise control of the injection.
Typical Applications
- Cavity filling in buildings
- Masonry injections for waterproofing
- Grouting of cracks in concrete or masonry
- Injection of suspensions and mineral materials
- Joints and seals in building structures
Recommended Basic Settings (Guidelines)
| Parameter | Recommendation |
|---|---|
| Air Pressure | approx. 4–8 bar depending on material |
| Flow Rate | Adjust to material viscosity |
| Hose Length | typically 5 m material hose |
| Suction Hose | approx. 1 m with strainer |
Professional Workflow for Injection Work
- Analyze the substrate and determine injection points.
- Drill holes and install injection packers.
- Connect the pump and set the air pressure regulator.
- Prepare the material and insert the suction hose.
- Perform the injection evenly and monitor the pressure.
- Observe escaping material and adjust pressure if necessary.
- After completion, clean the system and flush the lines.
Troubleshooting
Material is not being pumped- Check suction hose for blockage
- Check air supply
- Readjust pressure regulator
- Check air lines
- Reduce pressure
- Check packer connection
- Check material viscosity
- Clean strainer in the suction hose
Maintenance
- Clean the pump thoroughly after each use
- Regularly check hoses and connections
- Clean the strainer in the suction hose
- Check pressure regulator for proper function
- Regularly inspect diaphragms
FAQ
What materials is the pump suitable for?Mainly for suspensions and injection materials in low-pressure applications.
What is the maximum pressure?The maximum operating pressure is approximately 8 bar.
Is the pump portable?Yes, due to its compact design and low weight, it is well-suited for construction sites.
What hose length is used as standard?Typically, about 5 meters of material hose are used.
What are typical applications?Masonry injections, crack injection, and cavity fillings.
Conclusion
The WIWA Inject ND 1 is a robust and compact diaphragm pump for precise low-pressure injections in structural protection. Its simple operation, flexible application possibilities, and efficient air usage make it particularly suitable for construction sites where reliability and mobility are required.
