Grundfos PM START Pressure Manager for Domestic Water Pumps
The Grundfos PM START is an all-in-one pressure management solution that works with domestic water supply pumps from Grundfos or any brand. This intelligent controller automatically starts your system pump at a preset pressure point and keeps it running as long as water flows, ensuring optimal water pressure wherever and whenever it’s needed around your home.
As an authorized Grundfos Water Pump Dealer in Dubai, we supply the complete PM START range with genuine warranty and technical support across the UAE.
Technical Specifications
| Parameter | Specification |
|---|---|
| Supply Voltage | 1 × 230 VAC 50/60 Hz / 1 × 115 VAC 50/60 Hz |
| Maximum Current | 10A |
| Max. Power at 115 VAC | 1.1 kW (1.5 HP) |
| Max. Power at 230 VAC | 1.5 kW (2 HP) |
| Enclosure Class | IP65 |
| Male Connection | G1 |
| Liquid Temperature | 0–60 °C (32–140 °F) |
| Cut-in Pressure | 1.5 bar or 2.2 bar (22 psi or 32 psi) |
| Minimum Flow Rate | 1 l/min (0.26 gpm) |
| Maximum System Pressure | 10 bar (145 psi) |
| Pumped Liquids | Clean water |
Model Selection Guide
| Parameter | PM START 1.5 bar | PM START 2.2 bar |
|---|---|---|
| Cut-in Pressure | 1.5 bar (22 psi) | 2.2 bar (32 psi) |
| Number of Floors | Up to 5 floors | Up to 7 floors |
| Building Height | 15 m (49.2 ft) | 22 m (72.2 ft) |
| Minimum Pump Pressure | 3 bar (44 psi) | 3.5 bar (51 psi) |
| Maximum System Pressure | 10 bar (145 psi) | 10 bar (145 psi) |
Key Features & Benefits
Fixed Start Pressure Operation Connect PM START to your water supply pump and let it take control. Available in 1.5 bar and 2.2 bar models, the pressure manager starts your pump when the respective cut-in pressure is reached and keeps it running as long as there is sufficient water flow. This eliminates the need for complex pressure tank systems while ensuring consistent water delivery.
Dry-Running Protection PM START monitors water flow and automatically stops the pump in case of water shortage, protecting your pump from costly damage caused by dry running. This built-in safeguard extends pump lifetime and reduces maintenance requirements.
Alarm Indication Visual alarm indication alerts you to system issues, enabling quick identification and resolution of problems before they escalate.
Integrated Non-Return Valve The built-in check valve prevents backflow, eliminating the need for separate valve installation and simplifying your water system design.
Internal Pressure Membrane The internal membrane maintains system stability and ensures reliable pressure sensing for accurate pump control.
Generator Compatible PM START operates reliably with generator power supply, making it suitable for locations with unstable grid power or backup power systems.
Automatic Power Recovery Should a power outage occur, PM START automatically resumes operation once power has been restored—no manual intervention required.
Applications
The PM START pressure manager is ideal for water supply or rainwater systems in:
- Single-family houses – Ensure consistent water pressure throughout your home
- Blocks of flats – Manage water supply for multi-story residential buildings
- Summer houses and holiday cottages – Reliable water pressure for seasonal properties
- Horticulture and gardening – Automated irrigation system control
- Agriculture – Farm water supply and irrigation management
How PM START Works
The PM START operates on a simple yet effective principle:
- Pressure Drop Detection – When a tap opens and system pressure falls to the cut-in point (1.5 or 2.2 bar), PM START activates your pump
- Continuous Operation – The pump runs continuously while water flows through the system
- Automatic Stop – When all taps close and flow ceases, the pump stops automatically
- Protection Mode – If water supply fails, dry-running protection stops the pump to prevent damage
Solving Common Water Pressure Problems
PM START addresses typical domestic water pressure issues:
Fluctuating Pressure The pressure manager maintains consistent pump operation during water demand, eliminating the pressure drops experienced when multiple outlets are used simultaneously.
Insufficient Pressure By starting the pump at a preset pressure point, PM START ensures adequate pressure is always available for showers, taps, and appliances on upper floors.
Pump Cycling Unlike traditional pressure switch systems that cycle pumps on and off frequently, PM START provides smooth, continuous operation during water usage, reducing mechanical wear.
Installation Advantages
Universal Compatibility PM START works with domestic water supply pumps from Grundfos or any other brand, making it a versatile upgrade for existing installations.
Easy Installation The compact design with G1 male connection enables straightforward installation on pump discharge lines without specialized tools or extensive plumbing modifications.
IP65 Protection The IP65-rated enclosure provides protection against dust and water jets, allowing installation in exposed locations typical of pump rooms and utility areas.
Approvals and Certifications
The PM START meets international safety and drinking water quality standards:
| Category | Certification |
|---|---|
| Safety | CE, TÜV Rheinland Certified |
| Drinking Water | NSF/ANSI 61, NSF/ANSI 372 |
| Water Quality | AS/NZS 4020:2018 |
These certifications confirm PM START is safe for use in drinking water supply systems.
Why Choose Grundfos PM START?
Simplicity No complex programming or adjustment required—simply select the model matching your building height and connect to your pump.
Reliability Grundfos engineering and quality manufacturing ensure dependable long-term operation with minimal maintenance.
Protection Built-in dry-running protection safeguards your pump investment against one of the most common causes of pump failure.
Compatibility Works with any brand of domestic water pump, providing upgrade flexibility without replacing existing equipment.
Certification Approved for drinking water applications, meeting the stringent requirements of NSF/ANSI standards.
Genuine Grundfos Accessories & Parts
Maintain optimal PM START performance with genuine Grundfos replacement components and compatible accessories. We stock parts for all PM START models and can supply compatible pumps for complete system solutions.
Select Grundfos Pumps
Browse our complete inventory of Grundfos PM START pressure managers and compatible water supply pumps. As Grundfos Pump Suppliers in Dubai, we provide competitive pricing, technical consultation, and prompt delivery across Dubai, Sharjah, Abu Dhabi, Ajman, and all UAE locations.
Contact us for:
- 1.5 bar vs 2.2 bar model selection assistance
- Compatible pump recommendations
- System design support for new installations
- Retrofit guidance for existing pump systems
- Competitive quotations
- Delivery schedules
Optimized Home Water Pressure
The Grundfos PM START transforms domestic water supply by delivering consistent pressure with automatic protection. Whether boosting pressure in a villa, managing water supply for an apartment building, or automating garden irrigation, this compact pressure manager provides the reliability and simplicity that Grundfos is known for worldwide.