Metering and Pressure Regulating Skids for City Gas
Metering and pressure regulating skids for city gate stations, district regulators and customer supply in city gas networks.
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Gas filtered, regulated and measured at every step down
CRA's metering and pressure regulating skids filter, regulate and measure gas at city gate stations, district regulators and customer supply points in city gas networks.
Points served
Gate, district, customer
Functions
Filter, regulate, meter
Protection
Slam-shut and relief
Supply
Pre-piped skid
What does a metering and pressure regulating skid do in a city gas network?
Gas arrives from the transmission line at a pressure far above what customers can use. The skid cleans it, lowers the pressure in one or more stages and measures the flow for billing and network control.
How it works
Safety devices on the skid protect the downstream network if a regulator fails.
Filters remove dust and liquid from the incoming gas.
Regulators lower the pressure to the network or customer setting.
Slam-shut and relief valves act on overpressure.
Meters measure the gas delivered.
Key Benefits
Regulators hold the outlet pressure steady as demand changes.
Meters are selected for the flow range and the measurement duty.
Slam-shut and relief valves protect the network downstream.
Filters remove dust and liquid ahead of the regulators and meters.
A standby stream lets one run be serviced while gas keeps flowing.
The CRA Edge
CRA has more than 30 years of experience in gas handling and flare engineering.
Design, R&D and manufacturing are carried out under one roof.
ISO 9001 certified through TÜV NORD, with designs aligned with ASME, API and CE.
Designs are customised to the process needs and the regulations that apply at site.
Applications
Frequently Asked Questions
What does a city gate station do?
It takes gas from the transmission pipeline, filters it, reduces the pressure and meters it into the city network.
What is a district regulating station?
It reduces the pressure again within the network so gas reaches homes and businesses at the pressure they need.
Can CRA supply skids for industrial customers?
Yes. CRA supplies metering and pressure regulating skids for individual industrial and commercial connections.
What data does CRA need to design a city gas skid?
CRA needs the inlet and outlet pressure ranges, the flow range, the metering duty, the space available and the site conditions.
How is the network protected from overpressure?
Slam-shut and relief valves on the skid act if a regulator fails to control the pressure.