New firesafe certified ball valve series

MHA ZENTGRAF has successfully passed the firesafe certifcation with a new ball valve series. The special feature of that series: Other than the current firesafe valve series, this new series is suitable for bi-directional usage.
The valves are certified according ISO 10497 and API607.


  • Sizes from 1/2 to 3"
  • 420 bar (6.000 psi)
  • Bi-directional usage
  • Certified acc. ISO 10497, API 607
  • Additional tests and documentation on request (e.g. PMI, penetrant testing, gas test, ...)


  • 1.4571 (AISI316Ti) body and connector material
  • PEEK ball seats
  • FPM o-rings (or others on request)
  • Graphite secondary seats


  • Threaded connections (ISO 228, NPT female, UN female, DIN 2353 cutting ring, ...)
  • Flange connections (ISO 6162-1/2, ISO 6164, ANSI RF, ...)

→ Data sheet bi-directional firesafe ball valves (pdf)

Ball valves

MHA ZENTGRAF is one of the leading manufacturers for high-pressure ball valves and flow control valves worldwide.

→ Ball valve program


E-mail: info@mha-zentgraf.com
Phone: + 49 6861/7000-0


Your request was sent.