• Bulk pricing

    on every line

  • Next-day delivery

    from UK stock

  • Trusted by 50,000+

    customers

  • No minimum order

Portwest  ·  SKU: 262527

Portwest BZ31 Bizweld Work FR Trousers

Portwest BZ31 Bizweld FR trousers - dual hazard EN ISO 11612 protection, 7 pockets, elasticated back waist. Grey or navy, S-5XL.

£27.50 each, ex VAT
£33.00 inc VAT
Ships in 1 to 2 working days

Colour: Grey
Buy more, pay less Per unit, ex VAT. Applied automatically.
Ships in 1 to 2 working days

Formal quote back in 3 hours. No account needed.

Quote in 3 hours No account needed
  • Made in the UK
  • Next Day Delivery Available

  • Pay in 30 days with a Trade Account. No fees.
  • UK stock. Stock and lead time are shown above.
  • Seen it cheaper? We beat any genuine quote. 0161 706 0479
Multi Pockets Multi Pockets
Mobile Pocket Mobile Pocket
Flame Retardant Flame Retardant
Provides Warmth Provides Warmth
Stretch Stretch
UV Protection UV Protection
Welding Welding
EN ISO 11611 EN ISO 11611
EN ISO 11612 EN ISO 11612
IEC 61482 IEC 61482
Waterproof Rating: Not Waterproof
Thermal Rating: Medium Insulation (Cold Conditions)
Logo Printing Available: Yes
Embroidery Available: Yes
You may also like

Other fr trousers in the range

See all fire retardant trousers ›
£30.83 ex VAT £37.00 inc VAT
£23.33 ex VAT £28.00 inc VAT
£28.33 ex VAT £34.00 inc VAT
Why it works

Certified protection built to last

Dual hazard protection

Certified to EN ISO 11612 against flame, heat and electric arc, plus molten metal splash.

Flame resistance for life

Flame resistance is guaranteed for the life of the garment, not just after washing.

40+ UPF sun protection

The fabric blocks 98% of UV rays for outdoor hot-work in summer.

7 pockets for tools

A rule pocket, cargo pocket, concealed phone pocket and two back patch pockets keep kit close to hand.
Overview

Portwest BZ31 Bizweld Work FR Trousers - Overview

The Portwest BZ31 Bizweld Work FR Trousers are flame-resistant cargo trousers built for welding, electrical and other hot-work environments. Flame resistance is guaranteed for the life of the garment, with dual protection against flame and electric arc plus molten metal splash.
7pockets
Storage pockets
40+UPF
UV protection rating
98%
UV rays blocked
2colours
Grey and navy
Dimensions
Sizes availableS, M, L, XL, XXL, XXXL, 4XL, 5XL
ColoursGrey (GRR), Navy (NAR)
Details
CollectionBizweld Work
StandardEN ISO 11612 (A1+A2, B1, C1, E2, F1)
Thermal ratingMedium insulation (cold conditions)
Waterproof ratingNot waterproof (EN 343)
FitUnisex
CustomisationEmbroidery and logo printing available

Frequently asked questions

What does the EN ISO 11612 rating cover on the BZ31?

EN ISO 11612 certifies protection against radiant heat, convective heat, contact heat and limited flame spread, plus resistance to molten metal splash. The BZ31 is rated A1+A2, B1, C1, E2, F1 against the standard.

Are these trousers arc-rated for electrical work?

Yes. The BZ31 gives dual hazard protection against both flame and the thermal hazard of electric arc, and flame resistance is guaranteed for the life of the garment.

What colours and sizes are available?

The BZ31 comes in grey or navy, sized from S up to 5XL.

Are the trousers waterproof?

No. They are not rated to EN 343 and are not waterproof - they are built for flame, heat and arc protection rather than wet-weather work.

How many pockets do they have?

Seven, including a rule pocket, an easy-access cargo pocket, two back patch pockets and a concealed phone pocket.

Will washing affect the flame-resistant protection?

No. Flame resistance is guaranteed for the life of the garment, so normal washing will not remove the protection - follow the wash-care symbols on the garment label for the recommended cycle.

Can I add my company logo?

Yes. Embroidery and logo printing are both available to order - ask about trade-account pricing for bulk runs.

Get a quote in 3 hours

Our teams are available on 0161 706 0479

Payment & data security