HRD-E type extinguishing cylinders

Explosion Suppression
Donat Czapski

Donat Czapski – I am at your disposal

+48 695 244 220

info@grupa-wolff.com

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HRD-E type extinguishing cylinders

The HRD extinguishing cylinders are among most versatile and advanced explosion suppression systems.

Applications

  • Explosion protection of equipment units (including silos, filters, cyclones, mixers, drying plants, pelleting machines, etc.) in the presence of flammables at explosive concentration levels.
  • The HRD cylinders provide explosion protection for processing equipment units, vessels, and ductwork that contain class ST1 to ST3 particulate matter, gases and/or hybrid mixtures in all industrial sectors.

Specifications

  • Each HRD extinguishing cylinder (which contains a suppressant powder) is sealed with a safety membrane underneath which a detonating device is installed with a membrane shearing coil.
  • When the detonator is triggered by a control unit output, within 1.5 millisecond it propels the membrane coil which ruptures the membrane.
  • The HRD extinguishing cylinder is pressurized with nitrogen to 60 bars; the breached membrane allows expulsion of the KIDDEx suppressant powder towards the protected equipment unit(s) (and the HRD cylinder emptying time is 35 to 80 ms).
  • Application temperature: -20°C to +70°C.
  • Approved Ex-zones of use: Zone 22, 21, 2, and 1 outside the protected equipment; Zone  22, 21, 20, 2, 1, and 0 inside the protected equipment.
  • Protection type: II ½ D T 85C IP 65
  • ATEX-compliant design

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?

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