Product Categories & Subcategories

Deflagration Flame Arrestors

• Model 6A00 Series – Inline deflagration flame arrestor (6A00, 6A00-EM, 6A00-HT)
• Model 6C00 – End-of-line deflagration arrestor
• Model 6ZA21 – Liquid-seal deflagration arrestor
• Model 7A00 / 7B00 / 7C00 / 7J00 – Deflagration arrestors with integrated PV relief

Detonation Flame Arrestors

• Model 6B00 Series – Inline detonation flame arrestor
• Model 6E00 – Bidirectional in-line detonation arrestor
• Model 6K00 – High-pressure bidirectional detonation arrestor

Common Features (All Models)

• Certified to ISO 16852, API 2000, and ATEX (select models)
• Carbon steel or 316 SS bodies with stainless flame element cores
• Bidirectional installation, suitable for horizontal or vertical setup
• Replaceable flame element cores, no moving parts
• Recommended semi-annual inspection for core integrity
• Based on quenching gap principle for flame extinction

Category-Wise Features

Deflagration Flame Arrestors

Model 6A00 Series

Inline deflagration arrestors suitable for near-atmospheric vapor lines.

• Operating Pressure: 110–160 kPa abs (16–23 psia)
• Operating Temperature: –20 °C to +60 °C (HT up to +200 °C)
• Flow Rate / Cv: Graphs show up to ~10,000 Hundreds of CFH at ΔP ~10″ WC (~14 m³/h at 500 CFH)
• Line Sizes / Connections: DN20–DN300 (¾″–12″); ISO7/ASME B1.20.1 or flanged PN10/150#RF
• Compliance: UL, API 2000, ATEX

Model 6C00

End-of-line deflagration arrestor for open-to-atmosphere venting.

• Operating Pressure: Atmospheric
• Operating Temperature: Standard ambient
• Line Sizes: Typically DN50–DN200
• Installation: Vertical orientation, minimal pressure drop
• Compliance: API 2000

Model 6ZA21

Liquid-seal deflagration arrestor using liquid barrier.

• Operating Pressure: Atmospheric
• Operating Temperature: Ambient to ~200 °F
• Line Sizes: DN100–DN300 (4"–12")
• Maintenance: Requires regular liquid level check

Models 7A00 / 7B00 / 7C00 / 7J00

Deflagration arrestors with integrated pressure/vacuum relief for tank vents.

• Pressure Relief Range: ±6 oz/in² to ±14.7 psig
• Operating Temperature: Up to 212 °F
• Line Sizes: DN50–DN300 (2″–12″)
• Compliance: API 2521, ATEX

Detonation Flame Arrestors

Model 6B00 Series

Inline detonation arrestors with robust flame barrier and bidirectional design.

• Operating Pressure: Up to 110–160 kPa abs (~16–23 psia)
• Operating Temperature: ≤60 °C (140 °F)
• Line Sizes: DN40–DN200 (1½″–8″); PN10/150#RF flanges
• Compliance: ISO 16852, ATEX

Model 6E00

Bi-directional detonation arrestors for dual-flow high-speed pipelines.

• Operating Pressure: Up to 150 psig
• Operating Temperature: Up to 400 °F
• Line Sizes: DN50–DN200 (2″–8″); flanged ANSI 150# or PN10
• Compliance: UL, ISO 16852

Model 6K00

High-pressure detonation arrestors for extreme conditions.

• Operating Pressure: Up to 275 psig
• Operating Temperature: Up to 400 °F
• Settings: +5 to +50 mbar, –2.5 to –50 mbar (vacuum)
• Line Sizes: DN80–DN200 (3″–8″)
• Compliance: ATEX, ISO 16852

Applications

• Petrochemical pipelines
• Tank and flare venting
• Biogas systems
• Compressor discharge/suction lines
• Process vessel vents

Notable or Unique Features

• Detonation-grade models rated to 160 kPa abs / 275 psig protection
• High-temp units function up to 400 °F
• Horizontal or vertical configurations available
• Replaceable element cores reduce lifecycle costs
• Unique liquid-seal version (6ZA21) allows passive flame suppression

Why Choose Cashco Flame Arrestors

• Certified compliance (API, UL, ATEX, ISO)
• Comprehensive product range for deflagration and detonation
• Flexible installation: inline, end-of-line, tank vents
• Replaceable cores for easy upkeep
• Robust construction for harsh environments

Conclusion

Cashco Flame Arrestors offer certified, reliable flame protection with flexible configurations and easy maintenance. Whether securing low-pressure vapor lines or high-pressure pipelines, they deliver trusted safety performance across industries.