Pre-assembled skid systems are indispensable items of all onshore or offshore gas generation plants, gas-fired power generation plants, gas distribution stations, etc. Depending on the selected technology and on the client’s needs, they can measure and/or control the flowrate, distribute the gas flow, adjust the pressure and the reduction, filter, calibrate fiscally, monitor changes in pressure, temperature, viscosity, and density for liquids, slurries, and gases. Different designs and standards can be applied for LPG, LNG, other cryogenics, SNG plants, vaporizers and special accessoriness can be added to the system.