25/063 – Pressure Reduction Systems and Filtering & Metering System QS

The scope of work may involve the design, supply, fabrication, assembly, testing, delivery and associated services for Pressure Reduction Systems (PRS) across the Gas Networks Ireland transmission network.
• Lot 1 – Line Pressure Installations
Installations operating at transmission line pressure, typically comprising of filtering and metering arrangements.
• Lot 2 – PRS with flowrates < 50,000 scmh Modular or bespoke PRS units suitable for medium‑scale network reinforcement, industrial/commercial connections and system upgrades. • Lot 3 – PRS with flowrates > 50,000 scmh
Large‑scale, bespoke PRS installations supporting high‑capacity transmission applications requiring enhanced engineering and configuration.
Each lot may also include, where appropriate, the optional procurement of associated components such as regulators, filters, heat exchangers, valves and instrumentation.
GNI may, where required, engage suppliers to provide maintenance services post commissioning.