Electronic pump GPA II 130 25-6 0604W

Energy-efficient circulation pump for heating systems

The electronic pump GPA II 130 25-6, catalog number 0604W, is an advanced solution designed for efficient water circulation in central heating and domestic hot water (DHW) systems. The device stands out for its high performance, reliability, and energy efficiency, resulting in reduced operating costs. Its construction, based on a durable cast iron housing and a polymer impeller, ensures long-term, trouble-free operation.

Construction and application

The GPA II pump is designed for pumping clean liquids free of solid particles, fibers, or oily substances. It can be used with glycol concentrations up to 30%, although pump performance is reduced under such conditions. Thanks to its wide operating temperature range (+2°C to +110°C) and high corrosion resistance, the pump performs excellently in diverse heating installations. Installation with the shaft in a horizontal position and cable gland oriented downward or sideways ensures convenient mounting and servicing.

Key features and benefits

• High energy efficiency (EEI ≤ 0.23): The pump minimizes electricity consumption, leading to lower energy bills.
• Robust construction: Cast iron housing ensures corrosion resistance and extended service life.
• Wide range of applications: Compatibility with glycol enables use in frost-protected systems.
• Precise regulation: Automatic operating mode and smooth MIN-MAX adjustment allow pump output to be tailored to current heating system demands.
• Safety: IP42 protection class and insulation class H ensure safe operation under various environmental conditions.
• User comfort: Easy installation and servicing thanks to optimized design and accessible control elements.
• Reliability: Leak-proof sealing guarantees long-term peace of mind.

Operating parameters

The GPA II 130 25-6 pump features a maximum flow rate of 3.0 m³/h and a maximum head of 6.2 m. The maximum operating pressure is 1.0 MPa, with a supply voltage of ~230V (50/60 Hz). Power consumption ranges from 5W to 45W (0.05 – 0.38 A). The center-to-center distance between connections is 130 mm, with G1 1/2" threaded connections. Minimum inlet pressure depends on fluid temperature and is as follows: 0.50 bar (up to 85°C), 0.28 bar (up to 90°C), and 1.00 bar (up to 110°C).