

Dosatron® D40MZ2 Injector - No Bypass Top
Product Overview
Accurate chemical injection is the backbone of any successful fertigation or water treatment program. When a primary injector fails during the peak growing season, the resulting nutrient deficiencies or untreated water can lead to rapid crop loss, stunted turf growth, and costly emergency service calls. With late spring demand often straining supply chains, waiting until a breakdown occurs is a risk your operation cannot afford. Lead times for specialized injection components are currently unpredictable. By securing your Dosatron units now, you ensure your systems remain operational throughout the summer heat and avoid the stress of back-ordered parts during critical application windows.
Unlike venturi systems that suffer from inconsistent ratios due to pressure fluctuations, the Dosatron D40MZ2 uses a water-powered piston motor for precision delivery. This volumetric design ensures that the chemical discharge is always proportional to the water volume, regardless of changes in flow or pressure. For your crews, this means fewer calibration adjustments and significantly reduced labor hours spent on manual mixing. By choosing this professional-grade injector over lighter duty alternatives, you provide your clients with a reliable solution that lowers long-term maintenance costs and maintains a competitive edge in high-stakes agricultural and commercial environments.
Product Specifications
| Specification | Detail |
|---|---|
| Material | Reinforced Polypropylene and PVDF |
| Flow Range | 2.2 to 40 Gallons Per Minute |
| Injection Ratio | 1:500 to 1:50 |
| Pressure Range | 4 to 116 PSI |
| Connection Size | 1.5 Inch NPT |
| Seal Material | AFLAS for high chemical resistance |
Available Models & Sizes
The D40 series is available in several configurations including the D40MZ2 for 1:500 to 1:50 ratios and the D40MZ3000 for ultra-low dose applications. Please contact our technical sales team for full configurations, specialized seal kits for acidic solutions, or bulk pricing for large scale projects.
Key Features
- Water-powered motor operates without electricity, allowing for installation in remote fields or areas without power access.
- Volumetric proportioning ensures consistent chemical delivery even if system flow rates or pressures fluctuate during the cycle.
- Large 40 GPM capacity handles significant flow requirements for commercial greenhouses and mid-sized agricultural blocks.
- High-grade AFLAS seals provide superior resistance to common fertilizers, pesticides, and water treatment chemicals.
- Simple field maintenance allows your crews to perform routine seal changes quickly without the need for specialized tools.
- Durable reinforced housing is built to withstand the rigors of mechanical rooms and outdoor irrigation manifolds.
Common Applications
- Agricultural and crop irrigation
- Greenhouse and nursery operations
- Commercial landscape irrigation
- Sports turf and golf course maintenance
- Chemical and fertigation delivery
- Municipal parks and public spaces
Installation Notes
Ensure the injector is installed with a 200 mesh or finer filter on the inlet side to prevent debris from damaging the internal piston. Use the 1.5 inch NPT threaded connections with standard pipe sealant or PTFE tape to ensure a leak-proof seal. It is recommended to install a check valve on the discharge side and a pressure regulator if your source pressure exceeds 116 PSI. Always follow local plumbing codes regarding backflow prevention when connecting chemical injection systems to a potable water supply.
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