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Ventilation systems made of plastics are widely used in many areas and sectors where the conventional materials, such as plated steel or stainless steel become insufficient due to their limitations. Plastics have traditionally been used in laboratories, chemical industry or spaces of high purity grade. 

Available materials:

• PVC - polyvinyl chloride
• PVCW - white PVC polyvinyl chloride
• PPs - flame resistant polypropylene
• PP - polypropylene
• PP-EL-s - flame resistant electrically conductive polypropylene
• PE - polyethylene
• PVDF - PVDF plastic

Advantages of plastics:

• Chemical resistance
• Resistance to corrosion
• Low weight
• Durability
• High standard of air tightness, low leakage
• Do not require frequent maintenance
   

 

 

Ventilation systems made of plastics 
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Get to know our Product Range – Check our Product Overview! On 44 pages we’ve shown over 1000 products, described more than 10 ventilation systems and reviewed all our certificates, technical approvals as well as selection software that supports our clients. 

Examples of our ventilation systems:

1. The SPIRAL-System is a proven system of quick-coupled spiral ducts and fittings provided with factory-installed EPDM gaskets. The gaskets provide leak-proof and durable joints between SPIRAL®system components. The system components are available in a full range of diameters from Ø80 to Ø1250 mm. SPIRAL system meets the requirements of PN-EN 12237 for air tightness class D (Certificate no. 0103/07).
2. Components of the FIX-System suspension are made from galvanized steel or stainless steel and they meet the requirements of the BRI (ITB) Technical Recommendation no. RT ITB - 1112/2008 Includes: EQVS, EQZS, EQLS, CLR, CLRL, TKN, KLQ, PG, TK, LDB, PB.
3. Roof installation accessories are a range of fixtures and tools for easy and safe suspension of round and square ventilation ducts. Roof installation accessories are a range of modular roof support kits and roof feet, as well as other accessories that make the assembly easy and fast. Sets of roof supports can be used on flat roofs and slightly sloped roof. Roof support kit consist of perfectly matched elements - roof feet, sections of channel, screws, nuts, etc.
4. FLX-REKU is a complete ventilation system which comprises ventilation ducts, plenum boxes, air dampers and other components for building ventilation solutions with heat-recovery units. The system comes very handy when heavy-duty and flexible ducts are required. The high circumferential rigidity allows burying the ducts in concrete.
5. The EPP duct system is made of expanded polypropylene. The system has a number of design and installation advantages: low weight, quick installation (no additional connectors or screws required), no additional insulation is required since the material itself is already an insulator, easy to cut using hand tools, no thermal bridges. Thermal conductivity: λ=0.039 [W / m * k].
6. SQUER-System - rectangular ducts and fittings.
7. The IZOL®system is a registered tradename of pre-insulated ventilation ducts and fittings for indoor and outdoor systems. All system components are provided with inner and outer steel sheet cladding, and a thermal-insulation layer in between. The nominal diameter range of 100-500 mm always refers to the inner diameter of ducts and fittings. There are 3 types of insulation  available: 25 / 50 / 100 mm.
8. Ducts and fittings insulated with rubber foam Fovent®system. The insulation made of rubber mat is available in 4 sizes: 9, 13, 19 and 25 mm.
9. Insulated fittings IZOL-SAFE System designated for marine applications. Bend with air-insulation and duct with wool based insulation.
10. OFF-SHORE ventilation ducts and fitting - Circular ducts and fittings made of galvanized metal sheets, stainless steel 1.4404, wall thickness in stainless steel fittings from 0,8 up to 1,25 mm depending on diameterr. Swelling gasket for high temperatures purposes.
11. Ventilation systems made of plastics are widely used in many areas and sectors where the conventional materials, such as plated steel or stainless steel become insufficient due to their limitations. Plastics have traditionally been used in laboratories, chemical industry or spaces of high purity grade.
12. TRANS-Quick is a modern clamp-together ducting system intended for industrial dust extraction. Quick assembly and disassembly, using pull rings to connect components - which can be reused and reassembled.Ducts and fittings are manufactured from galvanised steel sheet 0.7 and 0.9 mm in thickness using butt welding method, components are joined with clamps equipped with a gasket.
13. Circular smoke extraction ducts and fittings SMOKE-SYSTEM.

In our product offer You can also find:

• Heat recovery unit
• Filters prevent contaminants from flowing with the air supplied into rooms and ventilation ductwork.
• Valves and ventilation grillse
• Ventilation duct silencers
• Ventilation dampers, vav flow regulatores and actuators
• Duct heaters
• Access doors 
• Duct fans
• Roof hoods and cowls
• Fire dampers and valves

Moreover, our products are tested and certified by:

RISE - Research Institutes of Sweden AB Certification (former SITAC)
Air Tightness Certificate for Ventilation Ductwork System - air tightness class D according to EN 12237:2003 - round spiral ducts and ductwork fittings with seals.

The Building Information Foundation RTS sr
M1 Cleanliness class for air handling components:

• Ventilation spiral ducts
• Pressed bends, reducers, T-pieces and take-offs
• Segmented bends, reducers, T-pieces, take-offs, male couplings, offsets
• Air dampers: regulating, shut-off, iris, multi blade

TÜV Rheinland Polska
Certificate of production quality:

• Round ventilation ducts and fittings
• Mounting accessories
• Regulating, shut-off, non-return and iris dampers
• Ventilation silencers

Instytut Techniki Budowlanej ITB (The Building Research Institute)
Technical approvals and certificates of constancy of performance

• STRUT assembly system
• Suspended mounting elements
• Flexible ducts - fire classification
• Fire dampers

Passive House Institute
Certificate for HRU-PremAIR-450 heat recovery unit confirming compliance with the highest energy efficiency requirements.

...
and many others.

 

 

Alnor Product Range 
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CFDM-V device combine features of dish air valve and shut-off fire damper. It is an alternative for standard fire valvr. Main advantages of CFDM-V are high fire resistance classification, small dimensions and more versatile application.

Characteristics:

• Round dampers 100, 125, 160, 200 mm
• Damper actuating mechanical
• Part of inlet/ outlet dish valve
• Maximum air speed through opened damper of 12 m/s and pressure difference 1 200 Pa
• Fire resistance EIS 60, 90, 120

Certificates:

• CE certified acc. to EN 15650
• Tested in accordance with EN 1366-2
• Classified acc. to EN 13501-3+A1
• Internal leakage class 2 acc. to EN 1751
• Corrosion resistant acc. to EN 15650

 

 

CFDM-V - fire damper with air valve
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STRUT System elements for ductwork suspension received a positive assessment of performance in the form of the National Technical Assessment ITB-KOT-2019/0940:

We’ve tested:

• fixing rails and channels: LDB, LDBST and LDBDT,
• cantilever support arms: W-LDB and WK-LDB,
• threaded rods PG,
• slide nuts without (SNP) and with a long spring (SNL) as well as a short spring SNKL.

STRUT system components are manufactured from hot-dip galvanized or electrogalvanized carbon steel. Check the new load capacities of fixing rails and wall-mounted support arms. See test results for tensile strength of threaded rods and slide nut loads. LDBST channel and STRUT channel accessories are essential components of roof support sets. 

Validity of the National Technical Assessment: 2024 r.

 

 

STRUT System 
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The EPP duct system is made of expanded polypropylene. The system has a number of design and installation advantages:

• Quick installation (no additional connectors or screws required),

• Low weight,

• The system EPP achieves airtightness class C (according to EN 12237),

• The ducts fit directly into the connectors of the PremAIR heat recovery units,

• The inner diameter of the EPP duct system fits the size of the SPIRAL®System components with male ends.

Ducts and fittings are available in the following diameters (inner): Ø100, Ø125, Ø160 and Ø180. The ducts are sold in two lengths: 500 and 1000 mm. The wall thickness is 15mm (standard version, graphite color) or 43mm (expanded version, black color). Each duct or fitting is supplied with 1 female coupling.

 

 

Ducts and fittings made of EPP
Download the technical catalogue