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NON COATED TYPE FIRE RATEDDUCTS TESTED TO BS & ENSTANDARDS
OUR PRODUCTS
www.leminarindustries.com
Leminar Air Conditioning Industries L.L.C, UAE:T: +971 4 456 1292 | F: +971 4 456 1293 | A: P.O Box: 33539, Dubai, UAEE: [email protected] | www.leminar industries.com
Leminar Air Conditioning Industries Co. Qatar W.L.L:(A joint venture with Dyarco International, Qatar)T: +971 4 456 1292 | F: +971 4 456 1293 | A: P.O Box: 3841, Doha, QatarE: [email protected]
Aerial view of Leminar Facility interiors
• Sound attenuators• Acoustic louvres• Acoustic enclosures• Screens and bespoke products (under exclusive
manufacturing licensee of Galloway Acoustics, UK)for UAE, Oman, Qatar, Bahrain & Kuwait.
• Tested to BS 4718 (ISO 7235) on UKAS accredited testrig in the UK
Coated type fire-rated ductwork under exclusive licensee from FFC (UK)
Spiral round ducts and fittings produced on dedicated SPIRO Switzerland machineries such as the Tubeformer, Gorelocker, EPDM Fixer, Stitchwelder.
• Galvanised ducts with CGF1 integral flangesystem. Tested to DWTM1 standards by BSRIA, UKfor its highest joint rating(j6) in the industry.
• Mild steel and stainless steel welded ducts.• Aluminium ducts• UL 555 listed fire dampers (single & multisection)• Control dampers• Access doors• Bypass and pressure independent type VAV units.
MAXIMISE SAFETY
Leminar Air Conditioning Industries L.L.C., a member of Al Shirawi Group of Companies, was established in the year 2000 to meet the growing requirements of the HVAC industry for quality
ductwork and sheet metal products.
Today, operating out of its new state-of-the-art facility spread over 325,000sq.ft. in Dubai Industrial City and a second facility in Doha, Leminar is the largest duct manufacturer in the region. It produces an array
of products: HVAC Sheet Metal GI ducts with CGF 1 type flange system, Fire-rated ducts, Spiral Round duct, Sound Attenuators, Acoustic Louvers, Volume Control Dampers, VAV Boxes, Fire Dampers and other accessories.
With strategic tie-ups with elite principles like Fenland Fire Contracts (U.K.), Galloway Acoustic (U.K.), Spiro (Switzerland), Leminar produces superior products which meet all the latest international standards like SMACNA,
DW-144, ASHRAE, NFPA and BS. It is also ISO 9001:2008 certified.
Flame SafeNon-coated fire-rated ducts designed to meet your needsAn industry leader, Leminar is at the forefront of innovation and has spawned several new quality products. Its latest, Flame Safe is a reliable and cost-effective non-coated, fire-rated duct. Meeting major international fire safety standards, Flame Safe is locally-produced to meet the immediate requirements of clients, consultants and contractors in a cost-efficient manner.
Leminar has tested Flame Safe to BS 476 part 24:1987 (ISO 6944:1985) / EN 1366-1: 2016 standards for Type A / Type B ducts for Stability, Integrity and Insulation resistance criteria. The system is classified under EN 13501-3 standard. (Full details of the ratings and certification can be produced on request).
Flame Safe is manufactured on Leminar’s fully automated duct coil line from the UK. The ducts are constructed from galvanised steel sheets with CGF 1 Integral flanges as transverse joints and adequate intermediate stiffeners to meet two hours fire rating for stability and integrity criteria. It is available in fully welded construction manufactured from mild steel or stainless steel sheets.
The non-coated ductwork system is tested and certified to be used for various applications such as Smoke extract, Car park, Pressurisation ducts, Ventilation and other fire-rated systems.
About Leminar
Features
STABILITY
In accordance with BS 476 Part 24 : 1987 the fire resistance of ventilation ductwork shall be expressed in minutes of duration of heating in accordance with the ISO-834:1985 (Cellulosic - Standard Time/Temperature Curve) until failure occurs to one or more of the following criteria:
Flame Safe non-coated ductwork system also complies with the requirements of Method 3 of BS 5588 Part 9 and BS 9999 (2008) Fire Protection of Ventilation Ductwork. A typical layout of Type A (fire outside) and Type B (fire inside) is shown below.
Note: Due to the likelihood of combustible deposits within the ducts, it is necessary to protect both the duct and the adjacent compartment from ignition due to radiated heat. Testing of both types A & B are, therefore, equally important.
Test pictures of Flame Safe Fire Rated Duct at Applus, Spain Laboratory
Testing of Flame Safe Uninsulated Duct Testing of Flame Safe Insulated Duct
Fire OutbreakCompartment
Duct Resists FirePenetration FromOutside
Adjacent Compartment
Duct Opening
No Fire Penetrationor Transfer
Duct Resists FirePenetration From
Inside
Fire OutbreakCompartment
AdjacentCompartment
Duct Opening
TYPE A (Fire Outside) TYPE B (Fire Inside/Outside)
Up to 2 hours stability and integrity. Typical for escape lobby ventilation and staircase pressurisation systems.
Up to 2 hours stability, integrity and limited insulation. Typical for kitchen extract, smoke extract, car park and other fire rated systems.
Stability failure shall be deemed to have occurred in duct A within the furnace and in ducts A and B outside the furnace when the duct no longer fulfils its intended function. (For smoke outlet ducts stability failure will also be deemed to have occurred when there is any restriction of the crosssectional area of the duct to 75% or less of its original area)
INTEGRITYThe presence and formation of any cracks, holes or other openings outside the furnace through which flames or hot gases can pass.
INSULATIONInsulation failure shall be deemed to have occurred when the temperature rise above initial ambient on the unexposed surface of the duct outside the furnace exceeds either:• 140 °C as an average value above ambient or• 180 °C as a maximum value above ambientFor a Kitchen extract duct (Type A) these temperature limits also apply to the inside surface of the duct within the furnace.
Cellulosic - Standard Time/Temperature Curve
Typical Fire Rated Duct Systems
APPROVED BYLOCAL CIVIL DEFENCE AUTHORITIES.
CERTIFICATIONS
Leminar Air Conditioning Industries L.L.C., a member of Al Shirawi Group of Companies, was established in the year 2000 to meet the growing requirements of the HVAC industry for quality
ductwork and sheet metal products.
Today, operating out of its new state-of-the-art facility spread over 325,000sq.ft. in Dubai Industrial City and a second facility in Doha, Leminar is the largest duct manufacturer in the region. It produces an array
of products: HVAC Sheet Metal GI ducts with CGF 1 type flange system, Fire-rated ducts, Spiral Round duct, Sound Attenuators, Acoustic Louvers, Volume Control Dampers, VAV Boxes, Fire Dampers and other accessories.
With strategic tie-ups with elite principles like Fenland Fire Contracts (U.K.), Galloway Acoustic (U.K.), Spiro (Switzerland), Leminar produces superior products which meet all the latest international standards like SMACNA,
DW-144, ASHRAE, NFPA and BS. It is also ISO 9001:2008 certified.
Flame SafeNon-coated fire-rated ducts designed to meet your needsAn industry leader, Leminar is at the forefront of innovation and has spawned several new quality products. Its latest, Flame Safe is a reliable and cost-effective non-coated, fire-rated duct. Meeting major international fire safety standards, Flame Safe is locally-produced to meet the immediate requirements of clients, consultants and contractors in a cost-efficient manner.
Leminar has tested Flame Safe to BS 476 part 24:1987 (ISO 6944:1985) / EN 1366-1: 2016 standards for Type A / Type B ducts for Stability, Integrity and Insulation resistance criteria. The system is classified under EN 13501-3 standard. (Full details of the ratings and certification can be produced on request).
Flame Safe is manufactured on Leminar’s fully automated duct coil line from the UK. The ducts are constructed from galvanised steel sheets with CGF 1 Integral flanges as transverse joints and adequate intermediate stiffeners to meet two hours fire rating for stability and integrity criteria. It is available in fully welded construction manufactured from mild steel or stainless steel sheets.
The non-coated ductwork system is tested and certified to be used for various applications such as Smoke extract, Car park, Pressurisation ducts, Ventilation and other fire-rated systems.
About Leminar
Features
STABILITY
In accordance with BS 476 Part 24 : 1987 the fire resistance of ventilation ductwork shall be expressed in minutes of duration of heating in accordance with the ISO-834:1985 (Cellulosic - Standard Time/Temperature Curve) until failure occurs to one or more of the following criteria:
Flame Safe non-coated ductwork system also complies with the requirements of Method 3 of BS 5588 Part 9 and BS 9999 (2008) Fire Protection of Ventilation Ductwork. A typical layout of Type A (fire outside) and Type B (fire inside) is shown below.
Note: Due to the likelihood of combustible deposits within the ducts, it is necessary to protect both the duct and the adjacent compartment from ignition due to radiated heat. Testing of both types A & B are, therefore, equally important.
Test pictures of Flame Safe Fire Rated Duct at Applus, Spain Laboratory
Testing of Flame Safe Uninsulated Duct Testing of Flame Safe Insulated Duct
Fire OutbreakCompartment
Duct Resists FirePenetration FromOutside
Adjacent Compartment
Duct Opening
No Fire Penetrationor Transfer
Duct Resists FirePenetration From
Inside
Fire OutbreakCompartment
AdjacentCompartment
Duct Opening
TYPE A (Fire Outside) TYPE B (Fire Inside/Outside)
Up to 2 hours stability and integrity. Typical for escape lobby ventilation and staircase pressurisation systems.
Up to 2 hours stability, integrity and limited insulation. Typical for kitchen extract, smoke extract, car park and other fire rated systems.
Stability failure shall be deemed to have occurred in duct A within the furnace and in ducts A and B outside the furnace when the duct no longer fulfils its intended function. (For smoke outlet ducts stability failure will also be deemed to have occurred when there is any restriction of the crosssectional area of the duct to 75% or less of its original area)
INTEGRITYThe presence and formation of any cracks, holes or other openings outside the furnace through which flames or hot gases can pass.
INSULATIONInsulation failure shall be deemed to have occurred when the temperature rise above initial ambient on the unexposed surface of the duct outside the furnace exceeds either:• 140 °C as an average value above ambient or• 180 °C as a maximum value above ambientFor a Kitchen extract duct (Type A) these temperature limits also apply to the inside surface of the duct within the furnace.
Cellulosic - Standard Time/Temperature Curve
Typical Fire Rated Duct Systems
APPROVED BYLOCAL CIVIL DEFENCE AUTHORITIES.
CERTIFICATIONS
NON COATED TYPE FIRE RATEDDUCTS TESTED TO BS & ENSTANDARDS
OUR PRODUCTS
www.leminarindustries.com
Leminar Air Conditioning Industries L.L.C, UAE:T: +971 4 456 1292 | F: +971 4 456 1293 | A: P.O Box: 33539, Dubai, UAEE: [email protected] | www.leminar industries.com
Leminar Air Conditioning Industries Co. Qatar W.L.L:(A joint venture with Dyarco International, Qatar)T: +971 4 456 1292 | F: +971 4 456 1293 | A: P.O Box: 3841, Doha, QatarE: [email protected]
Aerial view of Leminar Facility interiors
• Sound attenuators• Acoustic louvres• Acoustic enclosures• Screens and bespoke products (under exclusive manufacturing licensee of Galloway Acoustics, UK) for UAE, Oman, Qatar, Bahrain & Kuwait.• Tested to BS 4718 (ISO 7235) on UKAS accredited test rig in the UK
Coated type fire-rated ductwork under exclusive licensee from FFC (UK)
Spiral round ducts and fittings produced on dedicated SPIRO Switzerland machineries such as the Tubeformer, Gorelocker, EPDM Fixer, Stitchwelder.
• Galvanised ducts with CGF1 integral flange system. Tested to DWTM1 standards by BSRIA, UK for its highest joint rating(j6) in the industry.• Mild steel and stainless steel welded ducts.• Aluminium ducts• UL 555 listed fire dampers (single & multisection)• Control dampers• Access doors• Bypass and pressure independent type VAV units.
MAXIMISE SAFETY
