On-Site GV Valve Machining

Governor Valve On-Site Seat Restore.


Any end user, overhaul service provider, or OEM of steam turbine which needs to  repair governor valves with toroidal seat included in valve body.


Activities carried out using of NC machine, composed of following steps:

  1. Stripping.

    Removal of the damaged overlay material (sometime including all overlay and HAZ).

  2. Welding.

    Welding of new base material and/or overlay material.

  3. Shaping.

    Machining of the welded overlay to reach the desired

Custom profile.

If required it is possible to reach the highest level of finishing by lapping.

Working Range.

Up to Ø335 x Depth 945mm
Oversize on request.


Activities always engineered based on valve type and size.

Example of Machining.


Download this Service Paper

Servizio di Ripristino di Sedi di Tenuta di Valvole in Profondità.

Download the Catalogue.

Download the full catalogue of On-Site Machining Cabalities by clicking on the link below.

Download the Machining Catalogue

ISO Certifications

Check out our certifications!


Is it not a standard project? ⓘ

In order to create customized solutions it is possible to design a special project or re-engineering standard machines so as to let them fit the special application.

Customized Solutions

Schedule a Site Machining Intervention.