Double eccentric butterfly valve with bare shaft

  • Description
  • Technical specifications
  • Features

The GEMÜ R470 double eccentric metal Tugela butterfly valve has a bare shaft with a top flange, in accordance with EN ISO 5211. The butterfly valve is available in nominal sizes DN 50 to 600 and in standardized installation lengths API 609 category A (DIN 3202 K1).

  • Media temperature: -60 to 230 °C
  • Ambient temperature: -20 to 70 °C
  • Operating pressure : 0 to 40 bar
  • Nominal sizes: DN 50 to 600
  • Body configurations: Wafer
  • Connection standards: ASME | ISO
  • Body materials: 1.0619 (WCB), cast steel material with CDP coating | 1.4408
  • Liner materials: PTFE TFM™
  • Disc materials: 1.4408
  • Conformities: ATEX | EAC | FDA
  • High-performance butterfly valve with double eccentric construction in order to separate the disc directly from the seat (gasket), thereby reducing friction and extending the service life
  • Continuous shaft with temperature resistant graphite bearing and PTFE gland packing for readjustment in operation for minimized leakage, even at low pressures
  • Antistatic fixture for ATEX area