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The diaphragm is a stator part of a steam turbine that is used to regulate the flow of steam to the rotor blade and increase the efficiency of the turbine. Diaphragms are of interest due to their manufacture from a single piece of material. This technologically complex manufacturing process significantly increases the durability and strength of the wheel.

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Where we manufacture...

Power Generation Industry
  • SEKO Aerospace, a.s. – Louny
  • SEKO do Brasil
  • SEKO India
  • SEKO Germany GmbH (office)
  • SEKO Italy (office)
Aviation Industry
  • SEKO Aerospace, a.s. – Velká Bystřice
Tools and mouldings
  • SEKO TOOL, s.r.o. – Rychnov nad Kněžnou

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Quality guarantee

Guidelines, standards

We apply our internal guidelines strictly, and proceed accordingly at all our SEKO Group plants.


We comply with norms for materials, testing, manufacturing procedures, etc.


We hold certificates based on strict production and working conditions: ISO 9001:2008, AS9100 rev.C, NADCAP, WCA

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Professional manufacturing

Manufacturing procedures

We focus continuously on innovation, improvement and streamlining of procedures. The objective is maximum quality and saving time.


So that we can search for and use new technologies for manufacturing, we have special departments for this purpose, which test and introduce new technologies into the manufacturing process.

Machinery and equipment

Since 2001, we have invested over CZK 450 million to ensure we have the best manufacturing equipment.

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