Lohse type GGNA

Product information

Lohse type GGNA is a single piece cast-iron knife gate valve made suitable for pulp and slurry-shaped media with a fairly high solid particle content of up to 4.5%. The knife gate valve plate is designed in such a way that the settling and accumulation of solids are prevented. The GGNA can be equipped with various actuator systems.   

The standard seal for type GGNA is EPDM. NBR, FKM and PTFE and metal seals are available as well. 

Lohse gietijzeren meskant afsluiter type GGNA


  • Range: DN50 to DN600 
  • Pressure: 0 barg to 10 barg (depending on diameter) 
  • Temperature: -10⁰C to 210⁰C 
  • Design: 1-piece cast-iron casing (GG550) with epoxy coating 
  • Tightness: single-sided, 100% waterproof 
  • Recommended medium: solid particle content below 4.5% 
  • Exotic materials possible: no 
  • The standard seal for type GGNA is EPDM. 
  • NBR, FKM and PTFE and metal seals are available as well. 


Lohse GGNA can be used wherever the medium contains solid particles. These include pulp and paper applications, sewage and water treatment processes and applications where the medium contains fibres, potatoes, cement, plaster, dust and other solids.   

Product request

Request your product by completing the form. Do you have any questions about Lohse type GGNA? Feel free to write these down on the form as well. Our specialists will contact you directly to discuss your needs. 

Need advice on what applies in your situation? Contact us.