Alnor knowledge base

2019-11-18Is Elastomeric Closed-Cell Insulation a Good Solution for Ventilation?

Why insulate the ductwork? Insulation protects against condensation and energy loss as well as attenuates noises. Find out more about the pros and cons of elastomeric foam insulation in comparison to glass and stone wool.

2019-07-09FLX-REKU - Air Distribution System for the MVHR

Spiral, metal, rigid ducts next to flexible ducting (flex) are the most typical solutions for air distribution ductwork in the MVHR system – both have the pros and cons which we discuss later in the article – however, there is also the third option – modular air distribution ductwork using semi-rigid non-metallic ducting – radial or oval.

2019-07-08Air Volume Regulators CAV & VAV- overview

Airflow regulators maintain desired air flow rate in particular branches of ducting system regardless pressure variation inside the ducts. It makes the process of system design much easier but noise generation and operating costs should be considered that is why low initial pressure set up is crucial. Air flow regulation can take place both in supply and extract air duct

2019-02-20MOCarz-CA - Upgraded air filtration with activated carbon

Referred to also as activated charcoal or activated carbon is a substance in the form of dust consisting of elemental carbon, and finely crystalline graphite. The most important feature of actrivated carbon is a vast surface of adsorption. Adsorption is the process by which liquid or gaseous molecules are concentrated on a solid surface, in this case activated carbon (activated charcoal).

2018-07-1814 Thing You Need to Know about PremAIR

Already here! Our newest heat recovery unit - designed and constructed by Alnor's R&D department - PremAIR-450 with 93,4% heat recovery. The latest components available on the market were used for its design and production - see for Yourself - get to know 14 things that You simply need to know about PremAIR.

2018-06-19FAQ - Plastic Ductwork for aggressive environments

How to join plastic ductwork? What kind of welding device to use? What materials and diameters we have in stock? Can plastic ducts & fittings be stored outside? These and more questions about chemically resistant plastic ventilation ductwork.

2018-01-10Ductwork cleanliness standards with M1 classification

It is hard to overestimate the cleanliness . Especially nowadays, when alarms go off about air full of pollution like particle matter, hydrocarbons or Carbon and Sulphur oxides.

2017-08-04Modular TRANS-Quick system for dust extraction installations

Industrial dust extraction is used in welding industry, metalworking industry, woodworking industry, food and pharmaceutical industry. Installation air-tightness is crucial for this type of systems, since any kind of leakage may cause dust leaking outside of the ductwork and reduce dust extraction efficiency.

2017-06-27Vibration damping solutions in ventilation systems

In a standard ventilation system, there are many vibrations and noises which are transmitted in the metal ducts, generated by air handling units - fans, heat recovery units, and chillers. A properly installed ventilation ductwork should have built-in components to counteract the transmission of these vibrations or significantly isolate and dampen them.

2017-06-01Plastics in ventilation

Plastics based on polymers are applicable in many industry fields, The sanitary industry has taken advantage of the solutions based on the so called plastics for many years.