Fire Pressure Regulated Valves Maintenance Eliz Line

Transport for London

Publication date 28 October 2025, 9:41am
Contract locations
UKI41 - Hackney and Newham
UKI - London
Lot value
£1,800,000
Total value £1,800,000

Rail for London Infrastructure (RFLI), a TfL subsidiary, relies on Walter Frank, the OEM, for off-site servicing and calibration of life safety-critical PRVs used in the Elizabeth Line’s fire hydrant system. Due to the specialist nature of the task and OEM-held intellectual property, RFLI cannot perform this work in-house. Serviced PRVs must be returned with a certificate of conformity and are warrantied until the next scheduled service.
RFLI manages 1,438 PRVs across the Elizabeth Line, requiring off-site servicing every 36 months to maintain fire safety performance. Walter Frank, the OEM, handles inspection, calibration, and certification. The scope excludes on-site work and routine visits, focusing solely on off-site servicing of 40 units weekly, with collection and return included.
RFLI is initiating a competitive procurement process for the off-site servicing and calibration of Pressure Regulating Valves (PRVs) across the Elizabeth Line. This contract will be awarded based on the Most Advantageous Tender (MAT), ensuring the selection of a provider that offers the best value in terms of quality, capability, and cost-efficiency. The process is designed to promote fair competition and remove any exclusivity, while maintaining compliance with OEM standards and safeguarding the operational integrity of the fire hydrant system.

Fire Pressure Regulated Valves Maintenance Eliz Line