GSD-RFM is a single-jet dry-dial meter that is easy to connect directly to a wired M-Bus. In addition to the HYDROLINK Line system, GSD-RFM meters can be used in any building automation system that uses the M-Bus protocol, including the most commonly used M-Bus automation systems. Also certified for mounting with the dial facing down.

  • DN15–DN20
  • CE/MID approved
  • Easy-to-read roll counter
  • 360-degree rotating dial helps reading even in difficult locations
  • Dry dial structure ensures that the reading window is always clean
  • Approved mounting positions: dial upwards, dial downwards, dial sideways or onto vertical pipe
  • Wired M-Bus connection (device cable 2 m)
  • DHW max temperature – cold water +30 °C , hot water +90 °C

Certified mounting positions

Certified mounting positions


SizeInchModelLenght L (mm)Permanent flow rate Q3Product codeRSK nummer
DN151/2"cold water802,5 m³GSD-MB-15KV-L80514 41 62
DN151/2"warm water802,5 m³GSD-MB-15VV-L80514 41 64
DN151/2"cold water1102,5 m³GSD-MB-15KV514 41 40
DN151/2"warm water1102,5 m³GSD-MB-15VV514 41 63
DN203/4"cold water1304 m³GSD-MB-20KV514 41 65
DN203/4"warm water1304 m³GSD-MB-20VV514 41 66