A Member of the ISL Group of Companies

Prilex Ltd
ISL Group
Isolated Systems Ltd
MCL Unitex Ltd
Airmark Systems Ltd

 Our parent company Isolated
Systems Ltd are designers and manufacturers of noise, vibration and thermal expansion control equipment.

ISL are MCL’s Manufacturing Sub-Contractor

 Specialist
Passive Fire
Protection
Engineers

 MCL Unitex Ltd manufacture their seal and enclosure systems to strict quality control procedures and practices in accordance with the requirements of ISO 9001.
 Formal accreditation is held through
BSI who audit our operations annually.


MCL’s seals and enclosures are multi-component systems made up from ceramic and glass cloths and felts, metallic foils, silica areogel insulation and high grade stainless steels.
Ceramic blankets have been replaced by body soluble silicate formulations and elastomeric and silicone membrane coatings have been tested and found to be totally innocuous under fire conditions. COSHH data sheets may be supplied with all of our systems.

 All MCL systems are tested by independent, accredited test houses such as the IMO approved Loss Prevention Council at Borehamwood and HSE Laboratories at Buxton.

Throughout testing, MCL’s systems have maintained their integrity, stability and insulation properties and accordingly carry certification issued by Lloyds Register of Shipping, Det
Norske Veritas or American Bureau of Shipping.
 Following a rigorous pre-qualification process and a review of our company’s quality assurance credentials and financial stability, MCL have successfully registered with the Achilles
Joint Qualification System

After 2 hours exposure to temperatures over 1100 degC.
Pipe seal and module seal pre-test.



Jet fire testing is the most onerous of all system qualifications.
The UK’s Health & Safety
Executive Standard OTI 95
634 has been adopted internationally and more recently, the ISO 22899-1 standard dictates our test programmes.

Our Market Place . . . . .

Our Products . . . . .

Firetex Pipe Penetration Seal to Suit A0 to H0 Applications

Firetex Pipe Penetration Seal to Suit H60 to H120 Application

4. Apply overlap sealant to pipe end

5. Apply overlap sealant to sleeve end

Firetex Module Skirt Seal to Suit A0 to H0 Application

Firetex Module Skirt Seal to Suit H60 to H120 Applications

The Benefits of Choosing MCL’s
Firetex Pipe & Module Sealing
Systems
 Fully Certified Systems
After extensive and successful testing, MCL can offer certified systems to meet A0 & H0 and
H60 to H120 hydrocarbon fire conditions with blast overpressures up to 1.35 bar g.
Further enhancements qualify these systems for J30, J60 and
J120 applications.

The Benefits of Choosing MCL’s
Firetex Pipe & Module Sealing
Systems
 Versatile
Beyond standard concentric pipe-insleeve arrangements, MCL’s designers can provide solutions for eccentricity, bend and tee penetrations, non-sleeve situations and multi-pipe penetrations. A comprehensive guide is available supported by an extensive catalogue of data sheets.

The Benefits of Choosing MCL’s
Firetex Pipe & Module Sealing
Systems
 Cost Effective
Unlike alternate
‘filler’ type seal systems, the Firetex seal is designed to provide ease of installation requiring no special tools or specialist installer skills.

MCL’s Flexible Jacket Enclosure

MCL’s Flexible Jacket Enclosure

Firetex Cable Tray Protection
System

Firetex Cable Tray Protection
System
Hydrocarbon fire test arrangement.
Electrical continuity was maintained for the required
30 minutes

Firetex Cable Tray Protection
System

The Firemet Rigid Enclosure System

Firemet Rigid Enclosure System

The Benefits of Choosing an MCL Enclosure
 A Fully Certified System
The MCL enclosure systems have been extensively tested and certified and have proven to maintain their integrity throughout the high temperatures of a hydrocarbon fire and additionally, the enormously erosive effects of a jet fire.

The Benefits of Choosing an MCL Enclosure
 Cost Effective
MCL design their jacket enclosures with a close attention to ease of installation.
Fire grade Velcro and stainless steel worm drive straps and bands, instead of awkward lacing wires, make the system simple to install with no need for special tools or specialist installer skills. Access panels may be included to enable quick and easy visual inspections.

The Benefits of Choosing an MCL Enclosure
 Durability
The enclosure’s insulation core and jet fire resistant element are totally encapsulated in a tough silicone coated glass cloth giving it exceptional robustness in a wide range of environmental conditions.
Nylon quilting studs are used to ensure that insulation materials stay firmly in place throughout the design life of the jacket.

The Benefits of Choosing an MCL Enclosure
 Versatility
MCL’s designers can design their enclosures as jackets directly fitting to equipment or, where the subject equipment is awkward in shape or has control components attached, the enclosure may be designed to fit onto space frames.

The Benefits of Choosing an MCL Enclosure
 Design
Once surveyed, our engineers are able to provide 3D CAD design models to ensure that our manufacturing department can build each unit confident of
‘right first time’ performance.


MCL’s partners and agents are strategically located in all of the world’s key offshore oil & gas territories.
Their locations enable us to respond quickly to client enquiries and, through their experienced engineering staff, provide survey and installation services where required, quickly.