Published date: 15 June 2023

Last edited date: 21 July 2023

Closed opportunity - This means that the contract is currently closed. The buying department may be considering suppliers that have already applied, or no suitable offers were made.


Closing: 1 August 2023, 2pm

Contract summary

Industry

  • Ventilation installation work - 45331210

  • Inspection of ventilation system - 71315410

  • Ventilation consultancy services - 71321400

    • Construction-site supervision services - 71521000

    • Construction consultancy services - 71530000

Location of contract

GU24 0NF

Value of contract

£80,000 to £100,000

Procurement reference

Brooksby/SIL HVAC/2023

Published date

15 June 2023

Closing date

1 August 2023

Closing time

2pm

Contract start date

1 September 2023

Contract end date

31 August 2024

Contract type

Works

Procedure type

Open procedure (below threshold)

Any interested supplier may submit a tender in response to an opportunity notice.

This procedure can be used for procurements below the relevant contract value threshold.

Contract is suitable for SMEs?

Yes

Contract is suitable for VCSEs?

No

Description

Following a Layers of Protection Analysis (LOPA), The Pirbright Institute requires the design and construction of a safety system that detects overpressure and underpressure of various areas and rooms in the Brooksby facility. The system subsequently responds by shutting down the ventilation system by turning off supply and extract fans. As per Functional Safety standards IEC 61508 and IEC 61511, Pirbright requires this system to be reliable to Safety Integrity Level (SIL) 1. Safety Requirement System (SRS) attached at the back of this document for more detail.

Pirbright expects that the designer will have good awareness of the above-mentioned functional safety standards, and to be able to carry out their activities in adherence to the functional safety lifecycle phases as per IEC 61511. A non-exhaustive list of typical deliverables for such a project is as follows:

• Data sheets for all sensing elements (e.g., level switch), logic solvers and all final elements (e.g., valves)
• Bill of Materials (BoM) for all materials and accessories to be purchased
• Quotations for all required materials
• Functional logic diagrams (if required)
• I/O lists
• Functional Design Specifications (FDS)
• Loop diagrams
• Instrument wiring diagrams
• Electrical wiring diagrams
• Control panel layout and drawings
• Safety Integrity Level (SIL) Verification report
• SIL certifications for all relevant hardware (if available)
• Factory Acceptance Test (FAT) procedures
• Site Acceptance Test (SAT) procedures
• Safety Instrumented System (SIS) installation and commissioning plan
• SIS validation plan
• Safety manuals
• Proof test procedure
• Spare parts list
• Assets' register ready for upload to Pirbright Computerised Maintenance Management System (CMMS).

More information

Attachments

About the buyer

Address

Pirbright
WOKING
GU240NF
England

Email

Procurement.department@pirbright.ac.uk