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Comeval UNIFLOW® 90-99/33

Metal seated gate valves, forged and casted, API - DIN EN

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Key product features

  • Several design combinations by configuration, materials of construction (cast and forged) and trims, end connections (flanged, BW, SW, threads.
  • Nominal size range (DN10-DN1200 / 3/8"-48"), design pressure range (PN16-420 / ANSI Class 150-2500).
  • In accordance with ATEX Directive 2014/34/EU.
  • Metal-to-metal seating → provides a durable shut-off solution for demanding industrial service.
  • Bidirectional operation → supports flow isolation in either direction.
  • DN10–DN1200 / 3/8–48 in size range → covers a very broad range of process piping.
  • PN16–420 and ANSI Class 150–2500 → supports selection for high-pressure applications.
  • Cast and forged body configurations → allow matching to piping and process specifications.
  • Flanged, BW, SW and threaded ends → support integration with different piping standards.
  • Handwheel, gearbox or actuator operation → enables manual or automated valve control.

Product Description

Metal seated gate valves, bidirectional, for stopping the flow in process, power and oil&gas applications. The atmospheric sealing is achieved by flexible graphite rings or by bellows. Operated by handwheel, gear or actuator.


UNIFLOW® 90-99/33 gate valves are used for full flow isolation in process, power and oil and gas systems. They are bidirectional metal-seated gate valves. They are not intended for prolonged throttling in a partially open position.
AxFlow lists nominal sizes from DN10 to DN1200, or 3/8 to 48 inches. Design pressure extends from PN16 to PN420 and ANSI Class 150 to 2500 depending on configuration. Exact availability must be confirmed for the required materials and end connections.
UNIFLOW configurations include flanged, butt-weld, socket-weld and threaded ends depending on valve design. This supports integration with a wide range of piping standards. AxFlow can help match the valve to the installed piping specification.
Yes, valves can be operated by handwheel, gearbox or a suitable actuator depending on size and configuration. Actuator selection must consider required torque, duty cycle and control requirements. AxFlow can help evaluate the automation arrangement.
Yes, AxFlow can help identify an installed UNIFLOW valve and the required service components. Correct spare-parts selection depends on valve size, pressure class, materials and exact construction. AxFlow can also help assess repair or an appropriate replacement solution.
SIA AxFlow