Grundfos JP 3-42 PT-H Self-Priming Pressure Boosting Pump

The Grundfos JP 3-42 PT-H pressure boosting pump is a compact and reliable system designed for domestic and garden applications that require stable water pressure. The unit integrates a single-stage self-priming centrifugal pump and a horizontal pressure tank, ensuring a constant supply even in installations with flow or pressure variations.

Thanks to its stainless steel construction and self-priming design, this equipment is especially suitable for single-family homes, irrigation systems, water extraction from tanks or shallow wells, and applications where safe and long-lasting operation is required.

Main Applications

• Pressure boosting in domestic installations
• Garden and orchard irrigation systems
• Water supply from tanks or cisterns
• Residential applications with constant pressure demand

Hydraulic Features

• Nominal flow rate: 3 m³/h
• Nominal head: 36.5 m
• Start-up pressure: 2.2 bar
• Maximum working pressure: 6 bar
• Single-stage self-priming centrifugal pump

Pressure Tank

• Tank volume: 20 liters
• Horizontal configuration for greater stability
• Reduces the number of starts and extends system lifespan

Materials and Construction

• Hydraulic body and casing in AISI 304 stainless steel
• Impeller made of reinforced PPO-20GF composite material
• BBVP mechanical seal for enhanced reliability

Electrical Data

• Absorbed power (P1): 700 W
• Rated power (P2): 0.55 kW
• Power supply: 1 x 220-240 V
• Frequency: 50 Hz
• Rated current: 3.2 A
• Protection rating: IP44
• Insulation class: F
• 1.5 m power cable with SCHUKO plug

Installation and Connections

• Inlet and outlet hydraulic connections: 1 inch
• Connection standard: ISO 228-1
• Ambient temperature range: 0 to 40 °C
• Liquid temperature range: 0 to 40 °C

Certifications

• CE marking
• EAC certification
• UKCA certification

Weight and Dimensions

• Net weight: 15 kg
• Gross weight: 18 kg

The Grundfos JP 3-42 PT-H is a complete and robust solution to ensure a reliable water supply with constant pressure in domestic applications, combining hydraulic efficiency, high-quality materials, and easy installation.