UNA Series

UNA14, UNA16, UNA27H, UNA38, UNA39, UNA45, UNA46, UNA special

Features of the UNA series:

  • Unaffected by back pressure and condensate temperature
  • No loss of live steam due to continuous water seal at the seat
  • No banking-up of condensate even with extreme load and pressure fluctuations
  • Particularly well suited for heat exchangers controlled from the steam side
  • Unaffected by dirt
  • Automatic thermostatic air-venting (Duplex design)
  • Ideal for discharging cold condensates, distillates and condensates derived from chemical products (Simplex design)
  • Repairable in-line
  • Thanks to the rolling ball valve only reduced operating forces and small control units are required (compact, lightweight design for large flowrates)
  • Internals made from corrosion-resistant stainless steels


Condensate discharge without banking-up, even at varying operating conditions and back

pressure. Automatic air-venting (Duplex design). Also for the discharge of cold condensates and distillates, and for draining gas and compressed air systems (Simplex design).


Steam Trap


DN15, DN20, DN25, DN40, DN50, DN65, DN80, DN100, 1/2", 3/4", 1", 1 1/2", 2", 2 1/2"

Flange connection

ANSI 150, PN16, PN40, ANSI 300, ANSI 600, ANSI 900, PN25, PN100, PN63, PN160

Body material

1.4408, 1.0619, 1.4404, 1.0460, 1.5415, 1.7335, 5.3103, 1.5419, 1.7357, 5.1301

Pressure range

PN63, PN40, PN100, PN160, PN25, PN16, Class 300


F/F, Socket weld ends, Butt weld ends, Flanges

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