Davey DynaDrive DD15-35NPT — Compact Constant Pressure Pump System
The Davey DynaDrive DD15-35NPT is an integrated constant-pressure pump and controller built to maintain steady water pressure—even as demand fluctuates. With variable-speed control, it adjusts pump output in real time to preserve a preset pressure, reducing water hammer, cutting energy use, and ensuring smooth flow. It’s ideal for residential systems with moderate water usage.
Key Features & Benefits
- Up to **12 GPM** flow at ~300 kPa
- Stainless-steel impellers & hydraulic components for durability and corrosion resistance
- Integrated variable-speed drive & controller—“set and forget” pressure settings
- Quiet, efficient operation—reduces pumping effort when full output isn’t needed
- Air purging valve & stage porting aid in priming and reduce sensitivity to leaks
- Compact, all-in-one design simplifies installation in tight spaces
- Certified to UL778 standard for safety and performance in pump systems
Specifications
| Model | DD15-35NPT |
| Max Flow | 12 GPM @ 300 kPa (43 psi) |
| Max Set Pressure | ≈ 87 psi (600 kPa) |
| Inlet / Outlet | 1" FNPT / 1" FNPT |
| Voltage / Phase | 110-120 V, single phase (US variant) |
| Max Casing Pressure | 800 kPa (116 psi) |
| Operating Temp Range | 0–80 °C (32–176 °F) |
The DD15-35NPT is a great option for homes needing a reliable constant pressure boost without going overboard on capacity. Ideal use for household and domestic water supply, irrigation and turf watering systems. Its compact footprint, stainless internals, and smart controller help deliver performance and longevity.
| Model | Max Flow (approx) | Set Pressure / Max Pressure | Typical Use Case |
|---|---|---|---|
| DD15-35NPT | ~ 12 GPM | ≈ 300 kPa (43 psi); up to ~ 600 kPa (87 psi) | Residential homes, single-family with modest fixture load |
| DD60-10NPT | ~ 16 GPM | ≈ 300 kPa (43 psi); up to ~ 600 kPa (87 psi) | Larger homes, multiple bathrooms, higher simultaneous demand |
| DD90-11NPT | ~ 24 GPM | ≈ 300 kPa (43 psi); up to ~ 600 kPa (87 psi) | High-demand systems, large households, small commercial use |