Pressure relief valve, DN 40 ISO-KF
  • Order number: 120VUS040
  • Protects vacuum systems from over pressures
  • No safety component in terms of the machinery directive 2006/42/EC
  • Opening pressure with nut in middle position approx. 400 hPa
  • The opening pressure can vary by more than +/- 50 hPa and shows a hysteresis.
  • For valves not actuated for a period of time, initial cracking pressure may be higher than the set cracking pressure.
  • Please observe the maximum flow rate.
  • Tightness at 1000 hPa differential pressure
  • An exhaust hose can be attached to the KF connection at the outlet side
  • Delivery time: 1-3 days
Connection flange DN 40 ISO-KF
Connection flange (out) DN 40 ISO-KF
Connection flange (in) DN 40 ISO-KF
Tightness 1 · 10-9 Pa m³/s
  • FKM
Differential pressure Modifiable to app. +/- 150 hPa
Pressure range 1E-7 hPa – 5E2 hPa over pressure
Flow rate max. 210 l/min
  • Stainless steel
Temperature range 5 – 60 °C
Type Pressure relief valve
Dimension Image
A 35