Zone 2 Diesel Engines – Hazpak™ 500

Explosion Proof ATEX diesel engine Packages

Pyroban HazPak™ 500 – >500 bhp ATEX engines are Radiator to flywheel, Ex-certified packaged engines for hazardous locations / HazLoc. 

The most popular brands are Detroit Diesel, Cat and Cummins, but we can also convert most other brands.  When you specify a Pyroban Hazpak™ you’re buying a pre-engineered and certified solution suitable for Zone 2 hazardous areas. Pyroban has conducted all necessary engineering, testing and final certification, including all flame non-transmission testing and thermal testing in our Dyno facility.

We can produce standard Zone 2 diesel engine packages that comply with EN1834-1:2000, but also have the flexibility to address problems using ATEX 2014/34/EU and EN1127 and complete customised packages for IECEx, NORSOK Z-15 and DNV 2.7-2 Applications. Fixed and Variable speed options are available. Depending on the specification of the donor engine.  Donor engines can be free issued, or Pyroban can supply as part of the package.

We understand the offshore Business and our Zone 2 diesel engine packages are designed and executed to be robust and reliable in harsh operating conditions and corrosive environments.

Zone 2 diesel engines built for ATEX hazardous areas / locations

With in-house test facility procedures and approval to International standards, Pyroban ensures quality at every step in the process. We offer the following engines for ATEX Zone 2 hazardous areas / locations in this power rating, and more:

  • Cat C15
  • Cat 3406DITA
  • DDC Series 60
  • Cummins QSM 11

Typical explosion protection features include:

  • Air inlet shut-off Valve
  • Air inlet flame arrestor
  • Water-cooled Turbocharger & Exhaust Manifold
  • Exhaust Gas Heat Exchanger
  • Thermal control & treatment
  • Exhaust Flame arrestor
  • Certified spark arrestor

Additional components are added according to the application. See control systems and accessories tab.


The typical Pyroban Hazpak is suitable for use in hazardous areas where explosive gases occur (ATEX directive 2014/34/EU). The package provides protection to:

  • Equipment Group: II
  • Category: 3G
  • Gas Group: IIA
  • Temperature Class: T3

Conformance to the Temperature Class is dependent on ambient operating temperatures.
For ambient operating temperatures above 45°C consult your customer services representative.
ATEX-designed and tested exhaust system, compliant to EN 1834-1.

Consult specific engine documentation for full details of what is included.




Support through the lifecycle

We understand that our customers need maximum up time and that the harsh locations they operate in may mean special training or certification is required. We Support our customers throughout the lifecycle of the equipment with a highly experienced and qualified team of Service technicians.