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IQR SYSTEM™ Explosion Venting

IQR SYSTEM™ Explosion Venting

IQR SYSTEM™ Explosion Venting

Product catalog summary
Overview of the IQR System™
The IQR System™ is designed for explosion venting, flame arresting, dust retention, and pressure control. It consists of an explosion vent and a quenching module. The explosion vent opens to relieve pressure from a deflagration, while the quenching module intercepts and quenches the flame, retaining hot gases and dust. This system is effective in maintaining a safe environment by controlling temperature and pressure, making it suitable for indoor applications where vented explosions must be avoided.
Applications
The IQR System is recognized by standards such as NFPA 68, NFPA 654, and the European Atex Directive. It is ideal for indoor installations where venting to the outside is impractical due to long ducting requirements, lack of space, or unacceptable release of fireballs, dust, or pressure pulses. It can also be used outdoors with precautions against snow, ice, and water buildup.
Safety Functions
  • Flame Arresting: Prevents flame escape, ensuring a safe environment and eliminating secondary ignition risks.
  • Dust Retention: Prevents potentially toxic dust from entering the environment.
  • Pressure Retention: Absorbs explosion pressure peaks, protecting personnel and surroundings.
  • Temperature Control: Minimizes temperature rise in the surrounding environment.
Specifications and Selection
To specify the correct IQR unit, information such as process dust characteristics (Kst and Pmax), equipment description, normal operating pressure and temperature, and protection pressure (Pred) is required. BS&B's technical sales personnel can assist if this information is unavailable.
Installation and Maintenance
The IQR System is installed via a bolted flange connection. Larger units may require additional bracing. It includes a Burst Alert® sensor and monitor circuit for process shutdown upon activation. Annual inspections by factory-trained personnel are recommended to ensure safety and compliance with evolving codes and standards. The system requires minimal maintenance and can be refurbished after activation for quick process restart.
Dimensions and Weight
The document provides detailed dimensions and weights for various IQR models in both metric and U.S. customary units, facilitating proper selection and installation.
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Catalog excerpts

IQR SYSTEM™ Explosion Venting-1

EXPLOSION VENTING IQR SYSTEM™ BS&B PRESSURE SAFETY MANAGEMENT, L.L.C. FLAME, DUST and PRESSURE CONTROL • INTERCEPTS • QUENCHES • RE

 Open the catalog to page 1
IQR SYSTEM™ Explosion Venting-2

Flame Arresting – No flame escapes providing a safe operating environment for personnel. Eliminates the possibility of a secondary ignition and subsequent explosion external to the protected equipment. Dust Retention – Retains process product removing the possibility of potentially toxic product entering the environment. Pressure Retention – Absorbs explosion pressure peak, protects personnel and surrounding environment from pressure blast. Temperature Control – Absorbs fireball with negligible temperature rise in surrounding environment. HOW THE IQR SYSTEM™ WORKS The IQR system comprises two...

 Open the catalog to page 2
IQR SYSTEM™ Explosion Venting-3

INFORMATION REQUIRED TO SPECIFY THE IQR SYSTEM™ The IQR System is an explosion venting device. The following information is required to select and specify the correct IQR unit for your application. Process Dust (Kst and Pmax) Process Equipment Description (Volume(s)); preferably drawings including inlet and outlet connections. Normal operating pressure and temperature Protection pressure for process equipment (Pred) Should this information be unavailable, let BS&B’s technical sales personnel review your application with y

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IQR SYSTEM™ Explosion Venting-4

U.S. CUSTOMARY UNITS Type I.D. H in. in. Connection Flange number (n) and diameter (d) of bolt holes (see table) 1. Explosion vent with integral Burst Alert® Sensor 2. IQR Monitor that provides signal upon activation for process shut down. 3. Eyebolts for lifting and support after installation (if required) Dimension A is the external diameter of the IQR unit. INSTALLATION, INSPECTION AND MAINTENANCE The IQR System is simply installed by a bolted flange connection at its inlet, just as an explosion vent would by applied. Installation may be in any convenient location. In the case of larger size...

 Open the catalog to page 4

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.