Grundfos PM 1 Pressure Manager Start/Stop

The Grundfos PM 1 pressure manager, reference 96848722, is a solution designed to automatically control the start and stop of water pumps from Grundfos and other brands, providing efficient and safe operation. This device is ideal for applications where basic but reliable pressure system control is required, with protection against situations such as dry running and a constant start alarm, ensuring optimal performance and extending the life of the pumps.

Applications:

The Grundfos PM 1 is ideal for domestic water supply systems, gardens, irrigation systems, and any other application requiring the automatic management of a water pump. By detecting pressure and flow in the system, the PM 1 starts the pump when the pressure drops below a certain level, and stops it when the appropriate pressure is reached. This makes it an ideal solution for water supply systems where automatic control is needed without constant manual intervention.

Main Features:

• Automatic start and stop control: The PM 1 automatically starts and stops the pump according to the pressure and flow levels in the system. This ensures the pump operates only when necessary, which saves energy and reduces wear.
• Dry running protection: The device features integrated protection that prevents the pump from running dry, which could severely damage it. If there is no water in the system, the PM 1 will automatically stop the pump to protect it from potential damage.
• Constant start alarm: In case of a system issue causing a constant start of the pump, the PM 1 emits an alarm to notify the user and protect the installation from potential failures.

Technical Specifications:

• Starting pressure: The starting pressure is set at 2.2 bar, ensuring the pump starts when the system falls below this pressure level, guaranteeing a constant water supply in applications that require it.
• Manufacturing materials: The hydraulic body of the PM 1 is made from composite, a highly corrosion and wear-resistant material, while the pump casing is made of polypropylene, a lightweight yet durable material.
• Connections: The device features a G1" inlet and outlet connection with external threading, making it easy to install in most water pump systems.
• Liquid temperature range: The PM 1 is designed to handle liquids with temperatures between 0°C and 40°C, making it suitable for a wide range of water pumping applications in different climates.

Additional Specifications:

• Electrical data: The PM 1 operates with a nominal voltage of 220-240 V and a network frequency of 50/60 Hz, with a maximum power of 1200 W. The device has a maximum current consumption of 10 A, ensuring efficient operation in different electrical systems.
• Protection rating: The PM 1 has a protection rating of IP65, meaning it is completely protected against dust and can withstand low-pressure water jets, making it suitable for both indoor and outdoor installations.
• Cable length: The device includes a 1.5-metre power cable, facilitating installation in areas where the electrical connection point is at a reasonable distance from the pump. The plug is a Schuko type E/F (CEE7/7).

Additional Advantages:

• Return valve: The PM 1 is equipped with a return valve, which ensures that pressure is maintained in the system and prevents backflow, protecting the installation from potential failures.
• Potable water compatibility: This device holds certifications such as WRAS and ACS, making it suitable for use in potable water systems, ensuring that the water supplied through the system maintains its quality and purity.
• Easy and safe installation: Thanks to its compact and lightweight design, with a net weight of just 1.26 kg, the PM 1 is easy to handle and install in different systems. Additionally, its standard G1" connections and dry running protection make it a reliable and safe option for pump management.

Benefits of the Grundfos PM 1 Pressure Manager:

• Complete system automation: The PM 1 automates the starting and stopping of pumps, eliminating the need for manual control and optimising energy use in pumping systems.
• Advanced protection: The dry running protection and constant start alarm ensure that the pump is always protected, extending its lifespan and avoiding costly repairs or replacements.
• Durability and efficiency: Made from durable materials like composite and polypropylene, the PM 1 offers a long lifespan and reliable operation, even in demanding environments.