Flange Machining - Velcorix Services

Restore Flange Integrity

Damaged flange faces can lead to leaks and costly unplanned shutdowns. Velcorix provides specialist on-site flange machining services to re-face and restore sealing surfaces without the need to cut and remove the pipe.

Our portable machines can be mounted internally or externally, capable of machining a wide range of diameters from 2 inches up to 120 inches.

Scope / What’s Included

Flange Facing

Machining of Raised Face (RF), RTJ, and Flat Face flanges.

Pipe Beveling

Cold cutting and weld preparation for new pipe spools.

Surface Milling

Machining of pump bases and heat exchanger division bars.

Stud Removal

Drilling out of seized or broken studs.

Typical Real-World Applications

Damaged Faces

Repair of corroded or mechanically damaged sealing surfaces.

Exchanger Covers

Refacing of channel head partitions.

RTJ Grooves

Remachining of Ring Type Joint grooves.

Modification

Converting raised face flanges to RTJ or vice versa.

Capability Details

We deliver machine-shop accuracy directly to your site, regardless of the location.

Precision: Capable of achieving surface finishes from 6.3μm down to 0.8μm Ra.
Versatility: Modular equipment designs allow for mounting in restricted spaces.
Expertise: Technicians trained to read complex drawings and select appropriate cutting tools for exotic materials.

Compliance & Support

ASME B16.5

Fulfilling standards for pipe flanges and flanged fittings.

Dimensional Check

Pre and post-machining dimensional verification reports.

Cold Work

Pneumatically driven tools suitable for hazardous zones (ATEX).