GS SERIES

Standardised single-stage cast iron centrifugal pump and electric pump from DN 32 up to DN 200-500. Seal in two different versions: Silicon Carbide/Carbon/EPDM mechanical and packing. Suitable for heavy-duty applications such as industrial processes and cooling systems. Read more

Features

High efficiency

High efficiency

Sturdy construction

Sturdy construction

Available with bronze or cast iron impeller

Available with bronze or cast iron impeller

PZH
Standardised single-stage cast iron centrifugal pump and electric pump which combines the best technical and performance features in a single solution.
The wide range (from DN 32 up to DN 200-500), the variety of materials available, the easy maintenance and the hydraulic efficiency, are further enhanced by the interaction with the electronic solutions also offered by EBARA.
The GS models are available in both bare shaft and electric pump versions, with the following technical features:

• Robust cast iron pump body
• Impellers available in cast iron, ductile cast iron and bronze
The seal can be selected in two different versions: the mechanical one in Silicon Carbide/Carbon/EPDM and the packing one, in Silicon Carbide fibre. It has two replaceable bronze wear rings that ensure long-term reliable operation and high hydraulic efficiency.
Finally the flanges, from DN 32 up to DN 200, all PN16 (with reference to EN 1092-1), make GS a product suitable for the heaviest and most demanding applications.
The motors are available with 2 or 4 poles, 50 Hz, with IE3 efficiency (from 0.75 kW), with powers ranging from 0.37 kW to 355 kW, which can be coupled with inverters.
For further technical information see the Databook

• Industrial processes
• Cooling and air conditioning systems
• Pressurisation
• Firefighting

Technical data

Flow rate up to 1300 m³/h
Total head up to 150 m
Max. working pressure 16 bar
Max. temperature of the liquid -10°C ÷ 120°C for standard version
0°C ÷ 80°C for gland packing version
MEI > 0.4
Poles 2 and 4
Insulation class F
Protection degree IP55
Voltage Three-phase 3~230/400V ±10% (up to and including 4kW)
Three-phase 3~400/690V ±10% (from 5.5kW and above)

Materials

Pump body Cast iron
Impeller Cast Iron, Nodular cast iron, Bronze
Shaft Stainless steel 431 (EN 1.4057)
Mechanical seal Mechanical seal
(Silicon carbide/Carbon/EPDM),
Packing seal (Silicon carbide fibre)
Motor support Cast iron

More details
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