This website uses cookies

Cookies facilitate us providing this website. Some cookies are essential, and the site won't work as expected without them. These cookies are set when you submit a form, login or interact with the site by doing something that goes beyond clicking on simple links.

We also use some non-essential cookies to anonymously track visitors or enhance your experience of the site. If you're not happy with this, we won't set these cookies but some features of the site may be unavailable.


Standardized chemical pump in SIGUSS

Chemie-Pumpe aus Eisensiliziumguß RNSi
Chemie-Pumpe aus Eisensiliziumguß
Horizontale Chemie-Pumpe RNSi
Chemie-Normpumpe aus Eisensiliziumguß

The RNSi (ferro-silicon cast iron "Si-Iron") is a horizontal, single-stage, endsuction, top-discharge centrifugal pump, standardized to EN 22858, ISO 2858 and ISO 5199. RN (RNSi) pumps are used for handling chemically aggressive and/or inflammable liquids within the wide field of chemical processing and environmental technology.

The pump is equipped with the i-ALERT®2 sensor as standard. This monitors vibrations and temperature. If preset limit values are exceeded, LEDs in the sensor light up. All measured values can be retrieved via an app or the Ai Platform. This means that necessary measures can be taken in good time before the pump fails.

Design Features


Horizontal cetrifugal pump




DN 32 - DN 250



Delivery rate

Qmax. = 1.500 m3/h

Delivery head

Hmax. = 100 m


-40 °C to 300 °C

Nominal pressure

10 bar

Chemically aggressive media in the whole area of chemical processing technology and other areas of industry.


ISO 5199, ISO 2858, EN 22858


horizontal, single-stage



Casing design

Single volute casing



Bearing lubrication

Grease or oil lubrication

Installation versions

Base plate, base frame or stilt mounting

Ambient temperature

-20°C to 60°C

Solid content limit value

approx. 5 %

  • Temperature and vibration monitoring
  • Flange connections according to international standards
  • Thermosyphon system
  • Quenching system
  • Pump accessories

    Due to the wide range of shaft seals and design variants, it is possible to adapt this pump type to very different media and delivery conditions.

    • SIGUSS