Hydrophore Pedrollo JDWm-2-30 24CL (pina la 35m, 1,1kW) with protection

The Pedrollo JDWm 2/30-4 24cl c/x (BRASS) pumping station comes as a complete kit, including a flexible hose, power cable, pressure gauge, and a brass coupling. This highly reliable unit is designed for continuous and automatic water supply. This particular model is equipped with a single-phase Pedrollo electric pump.

Model Features:

• Pump capacity up to 3600 l/h
• Manometric suction head up to 45 m
• Liquid temperature up to +40°C
• Maximum ambient temperature +40°C

How the Pedrollo JDW Series Pumps Work:

The JDW series of self-priming pumps includes centrifugal electric pumps designed for pumping water from deep wells. Their self-priming capability is achieved using a Venturi tube located inside an ejector unit. This ejector unit is either mounted directly on the pump or, more commonly, submerged in the well and connected to the pump body by two pipes.

Only a portion of the total liquid flow generated by the closed centrifugal impeller is directed to the delivery port. The remaining water (referred to as "priming water") is recirculated through the Venturi system. This system, being connected to the suction chamber, creates a vacuum necessary to draw water from the submerged ejector unit. The water drawn from the ejector unit's opening mixes in the Venturi diffuser with the recirculated water from the pump. This increases its pressure due to the recirculated water, and it's then directed to the pump through the outlet pipe. If the ejector unit is installed directly on the pump casing, JDW series pumps operate similarly to JSW series pumps.

Pedrollo JDW Series Application and Installation:

These pumps are recommended for pumping clean water and chemically non-aggressive liquids. When installed above ground with a submerged ejector unit, JDW series pumps ensure reliable operation even if the water level in the well is up to 45 meters below the pump's installation level.

Thanks to their reliability, ease of use, and efficiency, these pumps are well-suited for domestic applications, including automatic water supply from small to medium-sized tanks, garden irrigation, and any situation where the suction depth exceeds normal limits (9 meters).

Installation requirements:

• A non-return valve is mandatory at the ejector unit's opening.
• It's recommended to install a valve on the pump's delivery port to ensure adequate pressure balancing during operation.
• Before starting the pump, fill the pipeline connecting the pump body to the ejector unit with water.
• When pumping water from depths not exceeding 9 meters, the ejector unit (only the 4-inch version) can be installed directly inside the pump casing. In this specific case, filling the suction pipeline is not required before the first start-up.
• The pump must be installed in enclosed spaces or locations protected from atmospheric agents.