SGN Major Works (MW) DPS.MW.727 & Intermediate Pressure (IP) DPS.IP.727 Refurbishment Dynamic Purchasing System (DPS) - Multisite 0326

Description

The DPS comprise the following work packages to be published as and when they
become available under the following scope.
Major Works (MW) Lot 1 (Lot 1 A Southern) and/or (Lot 1B Scotland)
The primary works activity is for the execution of repair and replacement of mains greater
than 12" and 355mm PE. Across SGN sites as they arise.
• policy abandonment and replacement, with polyethylene pipework, of underground cast
iron gas mains and associated steel service pipes with the majority of the cast-iron mains to
be abandoned and renewed will be in the diameter range diameter range 9" - 12" ("Tier 2
Mains")
• Replacement of all size steel mains and services due to their condition (non-policy mains
replacement)
• Diversion of mains and services at the request of a third party up to all size greater than 8"
• Construction of new reinforcement mains to increase the capacity of the network up to all
size greater than 8"
Intermediate Pressure (IP) Lot 2 (Lot 2A Southern) (Lot 2B Scotland)
The primary works activity is for the execution of Intermediate Pressure Works Across SGN
sites as they arise.
• Intermediate Pressure (IP) Mains Diversions - Design and Lay
• IP Connections - Design and Lay
• IP Service Laying (Industrial / Commercial) - Design and Lay
• Governor Replacements at all pressure tiers - Design and Build