Alnor knowledge base

2020-03-13How-to: Welding plastic ventilation ductwork

The choice of welding method is determined by the form of the joined elements, applications, operating conditions, chemical structure and physical properties of the joined materials. In this article, you will learn the techniques of welding plastics.

2020-03-09What is a Constant Volume Flow Regulator?

Self-adjusting Constant Airflow Regulators also referred to as self-regulating and automatic air volume regulators without external power supply. Airflow rate is regulated by rotating damper blade or other elements that throttle airflow and are connected with spring to counteract closing torque.

2020-03-068 Common Dust Extraction System Mistakes

You've invested in high-efficiency equipment and tools for Your woodworking shop, but is your dust extraction system working at peak efficiency? Find out about the most common mistakes when designing dust extraction and collection system and how to avoid them.

2020-01-07What is an Electrostatic Precipitator and how does it work?

Electrostatic Precipitator is a more efficient air purifcation solution than standard non-woven filters (e.g. HEPA filters), which clog up much faster, thus reducing the efficiency of the entire ventilation system. Find out how it works!

2019-12-16Ventilation systems for swimming pools

Ventilation systems for swimming pool halls must be resistant to aggressive and humid environments. Not only the air handling unit but also the appropriate air distribution ductwork system is responsible for meeting harsh humidity conditions.

2019-12-10Modular ductwork TRANS-Quick system for dust extraction

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.

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.

2019-11-08Air Damper for Dust Extraction Installations

Are air dampers needed for dust extraction systems? (Hint: YES, there are) Ventilation dampers are used in dust extraction systems to adjust and control airflow into particular duct branches. Sliding dampers vs. shutoff dampers in dust extraction systems.

2019-07-22Iris dampers for Circular Ductwork - accurate and quick airflow control

Quick, silent and efficient – these are the distinctive features of the GBL iris dampers used to adjust and measure airflow. GBL iris dampers allow for quick and exact adjustment of the airflow. They work very well wherever accurate airflow adjustment and individual control over the comfort conditions and parameters are required.

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.