White 25mm ABS Aspirating Pipe 90 Degree Bend

FAQ

What is the purpose of a 90 degree bend in aspirating pipe networks?

The 90 degree bend allows installers to change the direction of aspirating pipe networks to route around obstacles such as structural elements, services and equipment. The sweeping bend design maintains optimal airflow characteristics by minimising turbulence and air loss, which is critical for system performance and sensitivity in aspirating smoke detection applications.

Why choose white ABS instead of red for aspirating pipe?

White ABS aspirating pipe and fittings are chosen for aesthetic reasons in locations where the standard red colour may not be visually appropriate. This includes clean room environments, retail spaces, heritage buildings, museums, galleries, high-end corporate environments and other aesthetic-sensitive installations. The white finish provides the same technical performance and fire safety compliance as red pipework whilst offering a more discreet or visually harmonious appearance.

Which aspirating smoke detection systems is the WHTCUI0250 compatible with?

The WHTCUI0250 is compatible with all major brands of low-pressure aspirating smoke detection systems including VESDA, FAAST, ICAM and other leading ASD manufacturers. The fitting meets industry standards required for these systems and is specifically designed for aspirating pipe networks.

What temperature range can the bend operate in?

The ABS material performs reliably across temperatures from -40°C to +70°C, making it suitable for demanding environments including cold stores, freezer rooms, industrial facilities, data centres and outdoor applications. The material maintains its impact strength and toughness throughout this entire temperature range.

How is the bend installed?

Installation involves cutting pipe ends squarely, removing all burrs, abrading both the pipe ends and the fitting interior, cleaning with MEK cleaner, then applying ABS solvent cement before pushing the components together. The joint must be held steady for 30 seconds and allowed to cure before testing. Full cure times vary depending on temperature and humidity but typically require 24 hours before pressure testing.

Can white ABS pipe be mixed with red ABS pipe in the same system?

Yes, white and red ABS aspirating pipes and fittings are technically identical and can be mixed within the same system using standard ABS solvent cement welding. However, for aesthetic consistency and system identification purposes, it’s generally recommended to use a single colour throughout an installation zone. Mixing colours may be appropriate where pipework transitions between different areas with different aesthetic requirements.

What standards does the WHTCUI0250 comply with?

The bend is manufactured under a BS EN ISO 9001 quality control system and is tested and certified to EN 54-20 (fire detection and fire alarm systems – aspirating smoke detectors), EN 61386-1 and BS 5391 Part 1 standards, ensuring full compliance with UK and European fire safety regulations.

What are the chemical resistance properties?

The ABS material provides excellent chemical resistance to a wide range of acids, alkalis and aggressive chemicals. This makes the fitting suitable for installation in industrial environments, chemical processing facilities, laboratories and other areas where corrosive substances may be present.

Can the bend be used outdoors?

Yes, the ABS material is suitable for outdoor applications and maintains its properties across the full temperature range from -40°C to +70°C. However, care should be taken to protect the pipework from direct continuous sunlight exposure which may affect the material over extended periods.