Dynadrive DD15-35NPT 120V Variable Speed Constant Pressure System - 12GPM

The DynaDrive DD15-35NPT is the ideal solution for homes or small buildings that need steady water pressure but don't require high volume. With a max flow rate of 12 GPM and a 120V power supply, this compact system delivers quiet, energy-efficient performance with easy installation and minimal maintenance.

Equipped with a variable speed motor, the DD15 automatically adjusts to water demand, ensuring constant pressure without the need for a bulky pressure tank. It’s perfect for smaller homes, cottages, or pressure boosting applications where space and efficiency matter most.

• Small homes, cabins, or cottages
• Booster systems for homes with weak municipal pressure
• Point-of-entry systems for appliances or fixtures
• Homes with 1-2 bathrooms or limited demand
• Installations where 120V is the only power available

Warranty Period: 36 months

1. What is a constant pressure pump system?
A constant pressure pump automatically adjusts motor speed to maintain steady water pressure, even when water demand varies—like when multiple showers, faucets, or sprinklers are running at the same time.

2. Does the DynaDrive DD15-35NPT require a pressure tank?
No, the DynaDrive system has an integrated controller that eliminates the need for a large external pressure tank. A small diaphragm tank may still be used for efficiency, but it’s not required.

3. Is this pump suitable for homes with well water?
Yes. The DD15-35NPT works well for boosting pressure from well systems or municipal supplies, as long as water quality is within manufacturer-recommended limits (free of sand, silt, and corrosive elements).

4. What size pipe fittings does it use?
This model has 1” NPT inlet and outlet connections, making it easy to install with standard plumbing.

5. How quiet is the DynaDrive pump?
DynaDrive pumps are known for quiet operation, especially compared to traditional jet pumps or multi-stage centrifugal systems. They’re a great option for indoor or enclosed installations.

6. Is this pump energy efficient?
Yes. Its variable speed motor only runs as fast as needed, which helps reduce electricity usage and wear on the pump.

7. What is the maximum flow rate and pressure?

• Max Flow: 12 gallons per minute (GPM)

• Max Pressure: Around 75-80 PSI, but varies based on system setup

8. How long will a Davey pump last?
With proper installation and routine maintenance, Davey pumps are built for long service life. Most users report reliable performance for 8–12 years or more, depending on water quality and usage.

9. Can I install it myself or do I need a professional?
While many DIYers can install this pump using standard plumbing tools, we recommend professional installation to ensure optimal setup, safety, and warranty compliance.