Portwest FR92 High-Vis Bizflame Pro Class 1 Welding Trousers

  • Inherently flame-resistant, anti-static trousers
  • Ideal for warehouses or factories
  • Knee pad pockets for durability and comfort
  • Reflective tape and fluorescent fabric for maximum visibility
Our Price:  £43.76
Excl. VAT. (£52.51 Inc. 20% VAT)

Portwest FR92 High-Vis Bizflame Pro Class 1 Welding Trousers

Low-light conditions and thermal hazards are an extremely dangerous combination, but the Portwest FR92 High-Vis Bizflame Pro Class 1 Welding Trousers are designed for just this scenario. They offer protection from flames, heat and molten metal while remaining highly visible so you won't be overlooked in hazardous environments.

What Can the High-Vis Bizflame Pro Class 1 Welding Trousers Do for Me?

The trousers have several helpful features:

  • Thermal Hazard Protection: Class 1 protection against molten metal, and inherent resistance to radiant, convective and contact heat
  • Anti-Static: Fabric prevents a build-up of static charge around the wearer
  • Highly Visible: Reflective tape and fluorescent fabric qualifies the trousers as high-vis
  • Functional: Durable triple-stitched seams, knee pad pockets for comfort and longevity, spacious pockets for storage

The trousers are constructed from a cotton and carbon fibre material: Bizflame Pro. This fabric has been designed to withstand flame and welding hazards and to prevent a build-up of static charge.

Who Can Use the Portwest Bizflame Pro Trousers?

The trousers are ideal for working around thermal hazards in low-light conditions. The trousers can be relied on to make you fully visible, as well as providing ample protection from molten metal splashes, sparks and accumulating static-charge. Following is a short list of the professions and environments for which the trousers are well suited:

  • Petrochemical refineries
  • Warehouses
  • Assembly
  • Factory work
  • Sheet metal work
  • Offshore industry

Which Size Is Right for Me?

To find the correct size for you please measure yourself around the waist as illustrated in the image below, then find the corresponding size with reference to the table. Please select this size from the drop down menu at the top of the page.

How to Measure Your Waist

Size Waist Measurement (cm)
Small 76 - 80cm
Medium 81 - 88cm
Large 89 - 96cm
Extra Large 97 - 104cm
XX-Large 105 - 112cm

What Certifications Have the Portwest High-Vis Class 1 Welding Trousers Received?

The Portwest trousers have undergone thorough testing, so you can be certain of your safety at work.

  • EN ISO 20471:
    • Class 2
  • EN 11612:
    • A1: Limited flame spread
    • A2: Limited flame spread, hemmed
    • B1: Convective heat (scale 1 - 3)
    • C1: Radiant heat (scale 1 - 4)
    • E3: Molten iron splash (scale 1 - 3)
    • F1: Contact heat (scale 1 - 3)
  • EN ISO 11611
    • Class 1
    • A1
    • A2
  • EN 1149:
    • 5: Protects against electrostatic discharge in case of an explosion

What Do These Certifications Mean?

  • EN 1149-5: This standard demonstrates whether a garment protects against electrostatic discharge in environments such as petrochemical refineries where there is a risk of explosion
  • EN 11612: This standard determines whether a garment offers protection against heat and flames, and whether this protection extends to convective, radiant or contact heat
  • EN 11611: This standard shows whether an item of clothing is suitable for welding or similar tasks and will protect the wearer from heat and metal splashes
  • EN ISO 20471: This standard certifies whether an item of clothing is capable of visually signalling the user's presence, and assesses the durability of the high-vis qualities of the garment

The trousers are certified as highly-visible in low light conditions, as well as resistant to radiant, convective and contact heat. The trousers will protect you from splashes of molten metal and will prevent a potentially dangerous static charge from accumulating.

Is Further Information Available on These Certifications?

If you would like to find out more about the standards mentioned here please read one of our blogs on the subject:

What Are the Key Features of the High-Vis Bizflame Pro Trousers?

  • Protection against radiant, convective and contact heat guaranteed for the life of the garment
  • Class 1 welding protection against molten metal splashes
  • Sew on flame resistant reflective tape for increased visibility
  • Knee pad pockets for comfort and durability
  • Long lasting brass zips
  • Triple-stitched seams for maximum durability
  • OEKO-Tex certified as free from harmful chemicals

How Should I Care for the Portwest Trousers?

  • Wash at temperatures of 40°C or below
  • Do not bleach
  • Do not tumble dry
  • Iron at medium temperatures
  • Do not dry clean

What Are the Technical Details of the Bizflame Pro Trousers?

  • Shell Fabric: 99% cotton, 1% carbon fibre 330g

What Documentation Is Available?

Conformity Statement Instructions for Use (1) Instructions for Use (2)
Portwest 371 Conformity Download the Instruction Manual for the Portwest Gloves Download the Instruction Manual for the Portwest Gloves

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This item will be dispatched by 1st Class Royal Mail, DPD courier or UPS courier.

The estimated delivery time for this item is usually 1-3 working days when ordered before 14:00, Monday to Friday (excluding Bank Holidays).

Please contact our Customer Care Team on 020 7501 0598 for an up to the minute delivery expectation for this product.

UK Delivery Charges

Certain orders delivered to the UK are subject to a delivery charge; refer to the table below for more information. Please note that all values are listed exclusive of VAT.

Order Value UK Delivery Charge
Up to £39.99 £4.95
£40.00 and over FREE

Coronavirus Update

Please note that, due to the current COVID-19 pandemic, our processing time may increase slightly. We would advise that orders may be set back by as much as five working days, though we are striving to keep our delivery schedule as close to normal as possible.

If you have been waiting over 7 working days for your order and would like an update, please contact our Customer Care team at helpdesk@workwear.co.uk.