Mechanical Services

Power & Utilities

Hertel offer installation and maintenance services of mechanical systems such as structural steelwork, process equipment, pipework, tanks and vessels.

Mechanical Services

Maintenance and Shutdown Services

Hertel have been carrying out mechanical shutdowns and maintenance for around 20 years, including work on:

Pipework fabrication and installation
Vessels
Columns
Heat exchangers
Valves and pumps
Subcontractor management for craneage, NDT, stress relieving etc.

Fabrication Capabilities

Hertel specialise in the fabrication of structural steel, piles & pile guides, plate girders, pressure vessels and pipework. Our facilities utilise a highly skilled work force supported by modern fabrication, cutting and welding techniques.
Range of materials used:

300 / 400 Stainless Steels
Duplex & Super Duplex Stainless Steel
Nickel Alloys i.e. 625 and 825
Chromium Molybdenum Steels (up to 9% Cr)
High strength low Alloy Steels
Carbon Steels/LTCS
Titanium Alloys
Aluminium Alloys
Copper Alloys
Stellite - Hard Facing
CRA (Weld Overlay)

Range of welding and inspection processes

Manual metal arc
TIG/Orbital TIG
MIG/MAG
Flux cored
Submerged arc
Brazing/soldering
Oxy propane and plasma cutting
NDT, PMI and Pressure Testing facilities
Third Party Stress Relieving
Machining Capabilities - Light to medium range capability: CNC turning and milling, boring, drilling, honing, slotting, grinding.
Sheet Metal Forming - Ducting, guards, cladding, shields, filters, etc.

On Site Machining Services

Bolting service - Tightening of bolts using hydraulic torque equipment & integrity checking of assembled flange joints
Flange facing - Capability up to 3m diameter.
Pipe cutting and preparation - straight cut, standard bevel and ‘J’ preparation on pipework up to 2032mm diameter.
Boring & stud removal - boring and stud removal is available covering all major sizes up to 76 mm.
Heat exchanger work – tube pulling, tube plugging and testing. Hydraulic pulling machines used for tubes up to 63mm diameter