Stop Process Vessel Corrosion

Prevent Pressure Vessel Corrosion with HVTS

Refineries and Petrochemical Plants across the globe utilize HVTS, an IGS solution, to prolong the asset life of their high temperature and high pressure process equipment, including columns, towers, process vessels, separators and drums.


Process Vessel Asset Reliability | 5 Pillars of Success

At IGS, we work tirelessly to minimize risk and maximize value for our customers through all five critical aspects of our Engineered Surface Protection Solutions. You can count on IGS for Reliable Field Execution and Lasting Solution Performance.


We specialise in:

Whitepaper: Crude Distillation Unit Column Corrosion Protection

Field-applied HVTS alloy cladding offers a robust solution where other technologies fall short.

IGS delivers commercial or technological benefits by mitigating:

  • Pitting corrosion
  • Amine and caustic corrosion
  • Erosion
  • Stress corrosion cracking
  • Metal dusting
  • Free fatty acid corrosion

What is HVTS?

  • Robust engineered NiCrMoXX metallurgy upgrade cladding that mitigates corrosion and erosion
  • Applied turnkey in situ using a true high velocity thermal spray process
  • Adopted by top refineries and chemical plants globally as a gold standard for surface protection

Key Benefits of HVTS for Preventing Process Vessel Corrosion

No Risk of Application Failure 

HVTS does not experience failures that result from field welding or organic coating application by general contractors.

Total Asset Life Protection

HVTS offers lasting protection and does not require frequent reapplication. It will last for the duration of the asset life.

Peace of Mind & Technical Benefits

Each cladding is engineered for its intended environment. Inspections during normal operation are possible to verify integrity.

Commercial Benefits

HVTS delivers superior results at a fraction of the cost of vessel replacement or field welding.


I am a multiple repeat customer. I always get the best service and product and will continue to use HVTS and IGS.

Co-generation Production Lead

IGS did a great job of implementing and adhering to their project schedule, constant communication with our staff, and safe action plans while here.

- Turnaround Manager


I’m here to help

JanAlbert Schutte

IGS Subject Matter Expert

Book a Technical Consultation

IGS is here to provide information, answer questions and create an effective solution for your needs.

Key Features of IGS HVTS:

  • No Dilution
  • No Pre- or Post-Heat Treatment Required
  • No Metal Distortion
  • Fast Application (3 times faster than welding)
  • High Temperature Immersion Service over 500C / 932F
  • Adhesion over 35 MPa
  • No Environmental Controls During Application
  • No Cure Time
  • No Permeation
  • No Pin Holes

Common Problems and Solutions for Pressure Vessel Corrosion


How do you maintain a pressure vessel’s integrity?

You need to maintain the wall thickness which acts as your pressure boundary. You can do this by applying a protective barrier if the vessel is suffering from wall thickness loss or metal wastage caused by erosion, corrosion or a combination of both.

What is corrosion resistant alloy (CRA)?

A corrosion-resistant alloy is an alloy which is non-reactive or inert to its working environment, which means that it will not corrode.

What is the purpose of weld overlay?

Weld overlay has two purposes. To rebuild the pressure boundary or the wall thickness for mechanical integrity, or to apply a corrosion barrier.

What types of welding are typically used for pressure vessels?

Automated welding is usually performed in a workshop, whereas hand-applied welding is used in the field. There are two main types of welding material. One is used to restore wall thickness and rebuild mechanical integrity – typically the same material as the substrate, e.g., carbon steel. The other is applied as a corrosion-resistant alloy to upgrade the surface metallurgy of the vessel.


Asset Life Extension

Our claddings offer lasting surface protection where alternative technologies fall short. IGS’s consistent service is the reason why asset owners across the globe in the Oil, Gas, Petrochemical and Chemical industries, among others, trust IGS with their mission critical equipment.


Faster Turnarounds

We understand the need to reduce critical path and successfully complete emergent and site discovery work. Our solutions do not require heat treatment, have no cure times and reduce future maintenance requirements. IGS retains a permanent team of experienced project managers and technicians who take pride in their work. We collaborate with EPCs, Licensors, and other vendors on site for a smooth and stress-free turnaround.

Engineered Alloys

Our HVTS (High Velocity Thermal Spray) Alloy Cladding systems are specifically engineered for their intended environments. IGS can replicate your process conditions and test the suggested cladding for your project in our state-of-the-art Technology Center in Richmond, Virginia.

Proven Experience

Since 1981, IGS have performed 1000s of reliability projects and have multiple references and testimonials that showcase our operations excellence. We solve challenging problems in the harshest environments with ease.

Book a Technical Consultation with your local Subject Matter Expert

IGS is here to provide information, answer questions and create an effective solution for your needs.

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