Steel Fire Doors

British-manufactured steel fire doors certified for 1-4 hour fire resistance. Sunray's fire-rated doors meet BS 476 standards, protecting commercial, industrial and public buildings. Our steel fire doors combine robust construction with comprehensive fire safety features, including intumescent seals and fire-resistant cores. Available in single, double, and bespoke configurations with optional smoke seals and panic hardware. Each fire door is precision-engineered and tested to ensure maximum protection during fire emergencies. Ideal for fire escapes, plant rooms, and high-risk industrial environments.

Steel Fire Doors

British-manufactured steel fire doors certified for 1-4 hour fire resistance. Sunray's fire-rated doors meet BS 476 standards, protecting commercial, industrial and public buildings. Our steel fire doors combine robust construction with comprehensive fire safety features, including intumescent seals and fire-resistant cores. Available in single, double, and bespoke configurations with optional smoke seals and panic hardware. Each fire door is precision-engineered and tested to ensure maximum protection during fire emergencies. Ideal for fire escapes, plant rooms, and high-risk industrial environments.

Steel Fire Doors

British-manufactured steel fire doors certified for 1-4 hour fire resistance. Sunray's fire-rated doors meet BS 476 standards, protecting commercial, industrial and public buildings. Our steel fire doors combine robust construction with comprehensive fire safety features, including intumescent seals and fire-resistant cores. Available in single, double, and bespoke configurations with optional smoke seals and panic hardware. Each fire door is precision-engineered and tested to ensure maximum protection during fire emergencies. Ideal for fire escapes, plant rooms, and high-risk industrial environments.

With certified Fire Ratings from 1-4 hours, the range of Sunray Steel Fire Doors is the specifiers choice for applications in which there is an inherent risk of fire and hence the need for enhanced fire resistance and integrity. Sunray Steel Fire Doors provide a robust and maintenance free solution fully compliant with building regulations and are available in single or double leaf door options, with or without overpanel. The hardware and locking utilises the Surelock Mcgill or ExiDoor three point panic bar system or the DORMA single point mortice lock, as well as numerous other options.

  • A selection of our ExcluDoor® FR doors have achieved 4 hour fire rating.
  • Sunray’s SaverDoor® can be supplied in both single and double doorsets with a four hour rating.
  • The single SaverDoor® can be supplied as a four hour fire rated door.
  • The FireLock® is supplied as a four hour rated door.

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The only approved supplier for Louvre Doors & Systems

Sunray are the only supplier accredited in the UKPN EAS 07-0000a database to provide louvre doors and systems to UK Power Networks (UKPN),

Trusted by over 11 DNOs & IDNOs

We are one of the few UK suppliers trusted by over 11 Distribution Network Operators (DNOs) and Independent Distribution Network Operators (IDNOs) to deliver compliant, high-security door solutions for critical infrastructure.

The leading, compliance-first supplier

Sunray are proud to be one of the few UK companies that hold ISO 9001, ISO 14001 and ISO 45001

The only approved supplier for Louvre Doors & Systems

Sunray are the only supplier accredited in the UKPN EAS 07-0000a database to provide louvre doors and systems to UK Power Networks (UKPN),

Trusted by over 11 DNOs & IDNOs

We are one of the few UK suppliers trusted by over 11 Distribution Network Operators (DNOs) and Independent Distribution Network Operators (IDNOs) to deliver compliant, high-security door solutions for critical infrastructure.

The leading, compliance-first supplier

Sunray are proud to be one of the few UK companies that hold ISO 9001, ISO 14001 and ISO 45001

SR1 ExcluDoor® 1 FR Fire Doors

Certified by LPCB to LPS 1175 Issue 8 SR1 (A1)

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SR2 ExcluDoor® 2 FR Fire Doors

Certified by LPCB to LPS 1175 Issue 8 SR2 (B3)

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SR3 ExcluDoor® 3 FR Fire Doors

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SR4 ExcluDoor® 4 FR Fire Doors

Certified by LPCB to LPS 1175 Issue 7 SR4 (D10)

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FireLock®

Sunray’s unique FireLock® doorset has a 4 hour fire rating, as well as being blast resistance tested achieving 34Kn/M²

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SaverDoor® FR

The SaverDoor® FR is available with a fire rating from 1-4 hours.

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UKPN Doors - Trusted Supplier with Exclusive Louvre Systems Accreditation

Sunray Engineering stands as a trusted supplier of UKPN doors and holds the exclusive distinction of being the only UK manufacturer accredited to provide louvre systems to UK Power Networks. Following our recent addition to the UKPN EAS 07-0000a database for security doors, we now offer comprehensive door solution coverage across UK Power Networks' extensive distribution network, from our industry-leading Excludoor security doors for primary substation and grid infrastructure applications to our exclusive louvre systems for specialised ventilation management.

This strategic expansion of our UKPN accreditation, combined with our comprehensive range of power network doors, establishes Sunray as the preferred single-source supplier for complete security solutions across England's largest electricity distribution network. Our deep understanding of UKPN's exacting specifications, reinforced by over 70 years of engineering excellence, ensures that every UK Power Network door and louvre system we manufacture meets the stringent security, durability, and compliance requirements essential for protecting critical electrical infrastructure.

The complexity of modern power network doors and louvre systems demands a supplier with intimate knowledge of UKPN's operational requirements and regulatory framework. Sunray's proven track record in delivering steel security doors, exemplified by our groundbreaking FireLock® range which achieves an exceptional 240-minute fire rating whilst maintaining full 34.2 kPa blast resistance capability, combined with our exclusive louvre systems accreditation, reflects our comprehensive ability to meet the technical specifications outlined in UKPN's equipment approval standards. This breakthrough achievement demonstrates how advanced engineering can deliver integrated protection solutions that address multiple simultaneous threats whilst maintaining operational integrity.

Our UKPN doors and exclusive louvre systems are engineered to address the specific challenges faced by electricity distribution networks, including electromagnetic compatibility, physical security threats, and environmental resilience. The rigorous assessment process that led to our inclusion in the EAS 07-0000a database validates our engineering excellence and reinforces our commitment to meeting the exacting technical specifications demanded by utility-grade security applications. Our exclusive louvre systems accreditation demonstrates UKPN's confidence in our ability to meet their most specialised ventilation and security requirements, whilst our FireLock® technology sets new benchmarks for critical infrastructure protection.

The trust placed in Sunray by UK Power Networks extends beyond product supply to encompass comprehensive project support, technical consultation, and ongoing compliance assurance. Our dedicated team works closely with UKPN project managers to ensure seamless integration of our power network doors and louvre systems into new installations and infrastructure upgrades. Our digital asset management system provides complete traceability and maintenance records throughout the product lifecycle, supporting the complex operational requirements of critical electrical infrastructure where extended protection windows and reliable performance are essential for national infrastructure resilience objectives.

As one of the select few suppliers trusted by over 11 DNOs and IDNOs across the UK, our expanded UKPN accreditation underscores our position as the compliance-first choice for network operators requiring absolute certainty in their security infrastructure investments, delivering proven solutions that exceed industry expectations whilst maintaining operational efficiency.

June 26, 2025

Sunray Engineering Expands UKPN Accreditation with Security Doors Database Addition

Sunray Engineering achieves strategic expansion of UKPN accreditation, adding security doors to complement exclusive louvre systems provision for comprehensive critical infrastructure protection

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June 23, 2025

FireLock® Steel Doors Achieve Groundbreaking 240-Minute Fire Rating with Blast Protection

Sunray Engineering's FireLock® steel door range successfully passes rigorous EN 1634-1 fire testing whilst maintaining 34.2 kPa blast resistance, setting new benchmarks for critical infrastructure protection in utility and power generation facilities.

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June 23, 2025

The Critical Importance of Supplier Accreditation for UKPN, DNO and IDNO Door Solutions

This article explores why proper supplier accreditation for UKPN, DNO and IDNO door solutions is non-negotiable, what risks arise when working with non-accredited suppliers, and how to verify that your chosen supplier genuinely meets the exacting standards required.

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Enquire about the 
Steel Fire Doors
 range

If you require any further technical information / support, click on the Product Data sheet above, or if you require a quotation, please complete the enquiry form or email sales at sales@sunraydoors.co.uk

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