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DURAG GROUP
D-LL 7XX Fibre optic systems for combination with optical flame monitors

D-LL 7XX Fibre optic systems for combination with optical flame monitors

Product catalog summary

Overview
The document provides technical specifications and features of the DURAG D-LL 7XX fiber optic systems designed for flame monitoring in challenging environments. These systems are adaptable for use with flexible hoses or fixed pipes and are suitable for high-temperature and high-vibration conditions.

Features and Benefits

Flexible Design: Available in both rigid pipe and flexible hose versions, with lengths exceeding 20 meters to accommodate complex installations.
Optical Performance: Equipped with approximately 130 fibers for clear optical views in harsh environments.
Continuous Operation: The system is self-cleaning during normal operation.
Precise Alignment: Simplified re-alignment ensures accurate positioning after maintenance.
Durability: Robust fiber bundle design for long service life and resistance to wear.
Compatibility: Supports various flame monitors without requiring system modifications.
Protection: Shields optical flame monitors from heat, vibration, and contamination.

Technical Data

Spectral Transmission: UV, IR
Opening Angle: 6°
Ambient Conditions: Operates in temperatures from -40 to +350 °C (-40 to +662 °F)
Connections: Purge air and cooling air connections available.
Weight: Varies by model, ranging from approximately 1.6 kg to 3 kg plus additional weight per meter.
Material: Stainless steel 1.4301 for intermediate and guide tubes.

System Variants

D-LL 701: Flexible system for D-LE 701
D-LL 702: Rigid system for D-LE 701
D-LL 703: Flexible system for D-LE 703, D-LX 701, D-LX 710, D-LX 721, and D-LX 27X0
D-LL 704: Rigid system for D-LE 703, D-LX 701, D-LX 710, D-LX 721, and D-LX 27X0

Additional Information

Local Support: DURAG GROUP offers local commissioning and services through a global network, ensuring prompt assistance.
Comprehensive Solutions: Provides solutions for combustion optimization, safety, environmental compliance, and atmospheric impact monitoring.

Catalog excerpts

D-LL 7XX Fibre optic systems for combination with optical flame monitors-1

DURAG D-LL 7XX Fiber optic systems Flame monitoring for difficult environments • Flexible hose or fixed pipe connection for installation of the fiber optic system • Use under complex conditions such as tilting burners or in confined spaces • Use at high temperatures or with high vibrations DURAG DURAG GROUP

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D-LL 7XX Fibre optic systems for combination with optical flame monitors-2

• Local support, global reach: benefit from local commissioning and services through our extensive network of partners and corporate organizations, ensuring prompt assistance and expertise wherever you are. There's no need to send the device back to factory. • One company, comprehensive solutions: DURAG GROUP offers a comprehensive solution for your plant, from combustion optimization and safety to environmental compliance and atmospheric impact monitoring. Available in rigid pipe or flexible hose versions; lengths of 20 m and more possible to suit complex setups. • Superior optical performance...

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D-LL 7XX Fibre optic systems for combination with optical flame monitors-3

D-LL 701 | FLEXIBLE FIBER OPTIC SYSTEM FOR D-LE 701 Cooling air inlet G½˝ Welding flange Outer carrier tube min. 0.5 m Protection tube D-LL 702 | RIGID FIBER OPTIC SYSTEM FOR D-LE 701 Purge air inlet G½˝ Protection tube D-LL 703 | FLEXIBLE FIBER OPTIC SYSTEM FOR D-LE 703, D-LX 701, D-LX 710, D-LX 721 AND D-LX 27X0 Welding flange Outer carrier tube D-LL 704 | RIGID FIBER OPTIC SYSTEM FOR D-LE 703, D-LX 701, D-LX 710, D-LX 721 AND D-LX 27X0 A, B, C: DEFINED BY CUSTOMER, LENGTH SPECIFICATIONS

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D-LL 7XX Fibre optic systems for combination with optical flame monitors-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.

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