EPC contracting | One partner, full responsibility, predictable outcome

EPC contractor for ATEX
Grażyna Zawada

Grażyna Zawada – I am at your disposal

+48 515 380 743

info@grupa-wolff.com

Design
Delivery
Installation
Service

We know the requirements of insurers

From ATEX AUDIT to protection implementation

We provide 24/7 service

EPC contracting | One partner, full responsibility, predictable outcome

End-to-end design and launch of process safety systems

We take full responsibility for the entire scope: design, procurement, installation and launch of explosion and fire protection systems.

You enjoy efficient project execution, full control over the investment outcome, and optimized costs.

Why is it so hard to control explosion protection and fire protection projects?

elektrotechnika-do-stref-zagrozenia-wybuchem-co-zyskujesz-wspolpracujac-z-GRUPA-WOLFF-1 (1)

Coordination of multiple contractors is hard – especially competence assessment and quality assurance.

elektrotechnika-do-stref-zagrozenia-wybuchem-co-zyskujesz-wspolpracujac-z-GRUPA-WOLFF-2

Focus can be misdirected from maximizing risk reduction for people and assets to selecting equipment.

elektrotechnika-do-stref-zagrozenia-wybuchem-co-zyskujesz-wspolpracujac-z-GRUPA-WOLFF-3

Contractor’s team can lack the necessary expertise and experience, which strains the budget and causes delays.

What does the EPC model change?

By working in the EPC (Engineering, Procurement, Construction) model, you transfer the burden of responsibility to a proven partner in explosion and fire risk management.

You work within a simplified management structure and greater control over costs. You also gain confidence that the installation fully complies with ATEX Directive requirements and fire safety regulations. By meeting insurers’ expectations, you can negotiate more favorable insurance terms for your facility.

ATEX Audit

A single, trusted
strategic partner

ATEX Audit

Project consistency
and better coordination of works

ATEX Audit

Increased control
over costs and schedule

ATEX Audit

Compliance with ATEX Directive
and insurers’ requirements

Optimize investment and operating costs

In the EPC model, we view your facility as an interconnected system – ensuring the investment is not only technically effective,
but also economically justified across the entire lifecycle of the installation.

CAPEX

You control investment costs from the very first design decision

  • Technical and regulatory requirements are analyzed as one coherent scope
  • Optimum technical solutions are defined and tailored to actual site conditions
  • The investment scope is continuously optimized (e.g. in system modifications)
  • All subcontractors work in coordination, which reduces the risk of errors and delays

OPEX

Your installation is more cost-efficient to operate and more reliable

  • Solutions are selected based on quality, as well as maintenance cost
  • Design errors that lead to failures and downtime are eliminated
  • Installations are designed as an integrated system, not a set of elements
  • Design adjustments are introduced to improve long-term operating costs
WHAT IS THE ACTUAL COST OF AN EXPLOSION PROTECTION SYSTEM?

To propose the most beneficial solution for the customer, we take into account not only the process and technical factors required to meet legal requirements.

We also focus on costs, including those incurred throughout the entire lifecycle of the solution (Total Cost of Ownership – TCO), not only the costs related to purchase and installation.

To calculate the total cost (TCO) of an explosion protection system, the following should be considered:

  1. Purchase costs of individual components
  2. Installation and commissioning costs of the entire system
  3. Periodic inspection costs
  4. Costs related to restoring the installation after system activation

Example: The customer wants to protect the air extraction system in a wood chip grinding installation.

Design assumptions:

The protection system must prevent flame propagation and explosion pressure release into the production hall. The equipment is already partially protected with two HRD units.

According to the requirements of the ATEX Directive, two types of protection systems can be applied in this case:

Proposition 1:

Explosion protection system consisting of 5 HRD units (2 existing + 3 new)

Scenario 2:

Explosion protection system consisting of 3 IsoDisc valves and 2 HRD units (existing)

In the first scenario, protecting the installation entirely with the HRD system would require the installation of three additional HRD units on three air extraction points. However, this would also require extending the existing ventilation ducts.

In the second scenario, no additional installation or assembly work is required. The cost only includes the purchase of IsoDisc valves and their installation. In both cases, the annual inspection cost would be comparable.

The factor that significantly changes the TCO between solutions 1 and 2 is the cost of restoring the system to operation after activation.

In solution 1 (5 × HRD), regeneration is required for all system components. In solution 2 (IsoDisc + HRD), only 2 out of 5 system components require regeneration.

Fig. 1. Comparison of protection systems in scenarios 1 and 2.

Assuming that the cost of restoring one component equals X, it can be calculated that the use of IsoDisc valves resulted in savings of approximately 45%.

Fig. 2. Comparison of protection system costs in scenarios 1 and 2.

How does IsoDisc help reduce the total cost of an Ex solution?

First, it is a mechanical, reusable solution that does not require service intervention after activation.

Second, IsoDisc enhances the performance of the HRD system already installed on the mill. By closing under explosion pressure, the valve retains the extinguishing agent from the HRD bottle inside the mill, allowing the system to operate with full effectiveness while using a smaller quantity of extinguishing agent.

1. Concept and design

We serve as a technical mentor
for your team and all involved parties

  • We align requirements between stakeholders
  • We provide technical and technological support
  • We optimize the systems technically
  • We prepare designs and technical drawings
  • We prepare documents based on actual commission parameters

2. Earth- and construction works

We coordinate operations
at every stage

  • Our calculations are based on geological tests
  • We run foundation and utility earthworks
  • We mitigate unforeseen site conditions
  • If required, we recalculate hydraulic parameters and introduce design adjustments

3. Procurement and commission

We deliver and install the system,
prepare documentation and train personnel

  • We provide qualified, certified specialists
  • We comply with internal procedures of your facility
  • Our coordinator oversees all stakeholders’ works
  • We work at designated times
  • We minimize the impact of commission works
    on production continuity

“We look at the facility from multiple perspectives. If a problem occurs during the project, we first develop a solution and only then involve the client. How about a reference visit? Our clients are happy to share their experience of working with us.”

Bartosz Wolff, CEO in GRUPA WOLFF

You are protected by our extensive insurance package

The quality of our work is a top priority, but we are prepared for the possibility of human error. Our insurance policy protects both us and your facility against unforeseen events that may result in losses.

Model approach to explosive safety in an industrial plant

Model approach to explosive safety in an industrial plant

Step 1
ATEX Audit

During the ATEX Audit, we will focus on deficiencies in explosive safety and indicate tasks that should be performed first to have the strongest impact on safety improvement.

Model approach to explosive safety in an industrial plant

Step 2
Protection Concept

The result of the ATEX Audit is also a preliminary concept of protecting the installation from explosion. It allows estimating the costs of protections. After testing the explosiveness parameters of the dust from the installation, we move on to the final concept and design.

Model approach to explosive safety in an industrial plant

Step 3
Design and selection of protections

After accepting the concept and testing the explosiveness parameters of the dust from the installation, we proceed to the final selection of explosion protections and create a design that takes into account all required changes in production.

Model approach to explosive safety in an industrial plant

Step 4
“Turnkey” delivery and installation

We coordinate the entire delivery and installation process of protections. We have our own service teams with experience in performing installation without the need to stop the investor’s plant operation.

Model approach to explosive safety in an industrial plant

Step 5
Execution of ERA and EPD

We conduct a post-implementation Explosion Risk Assessment (ERA) and prepare (or update) the Explosion Protection Document (EPD). We usually also conduct training for the crew in the field of explosive safety.

Secure your industrial plant

Do you have any questions?

Grażyna Zawada

Grażyna Zawada - I am at your disposal

+48 515 380 743

info@grupa-wolff.com

Design

Delivery

Installation

Service

or send your inquiry






    WOLFF GROUP
    Privacy Overview

    This website uses cookies so that we can provide you with the best user experience possible. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.