With the rapid development of China's natural gas industry, cities have become the end-users of gas, spreading across the country. The vast number of users attracts foreign manufacturers to trade and invest in China, while domestic manufacturers have also increased dramatically. Some joint ventures with foreign companies, while others act as agents. Although the manufacturing level of technical equipment has improved rapidly, there is still a significant gap compared to domestic demand. The following is a brief overview of gas (including LPG, natural gas, and city gas) pressure regulating and metering equipment from several manufacturers.
- Building Pressure Regulator Box
- Suitable for residential buildings and small commercial users
- Flow meters use diaphragm meters and turbine flow meters
- Gas Pressure Regulating Station
- Box-type gas pressure regulating station is the development trend of gas pressure regulating and distribution equipment
- Integrates gas pressure regulator, filter, safety accessories, and control equipment
- Features small footprint, good system coordination, complete functions, and high reliability
- Used as pressure regulating device for gas distribution pipeline network
- Gas Pressure Regulating and Metering Station
- Integrates gas pressure regulating system, gas metering system, and related electronic equipment
- Features small footprint, good system coordination, complete functions, and high reliability
- Used in residential areas, commercial users, and direct-fired equipment
- Skid-mounted Gas Distribution System
- Integrates gas preprocessing, pressure regulation, flow measurement and regulation, gas heating, odorization, remote control, and communication technologies and equipment
- Realizes the equipment integration of large-scale gas distribution facilities (city gate stations, large distribution stations, sub-transmission stations, etc.)
- LPG Equipment
- Gasification equipment: including electric heating vaporizers, steam heating vaporizers, and hot water heating vaporizers
- Gas mixing equipment: used for mixing LPG and air, as peak shaving backup or auxiliary gas source, including single-pipe ejector mixers, binary mixers, and high-pressure proportional mixers
- Various Types of Pressure Regulators
- LPG pressure regulators: used for pressure regulation of LPG and natural gas
- Small pressure regulators: suitable for medium and low-pressure gas pipeline networks, serving medium and small users
- Commercial and industrial pressure regulators: suitable for small residential areas, general industrial and commercial users, and direct-fired equipment gas supply
- Industrial and distribution system pressure regulators: suitable for large residential areas, industrial and commercial users, gas distribution pipelines
- Industrial and distribution system high-pressure regulators: suitable for large industrial users and gas distribution systems
- Direct-fired equipment voltage stabilizers: used as pre-stabilizers for low-pressure system direct-fired equipment
- Gas Safety Devices
- Safety relief valve: used to maintain pipeline network pressure stability and as safety valve
- Overpressure cut-off valve: used for system safety of various levels of gas pipeline networks
- Gas Flow Measurement Devices
- Rotary gas flow meters
- Turbine gas flow meters, etc.
- Gas Flow Calibration Devices
- Calibration devices include sonic nozzle type, bell jar type, piston type, and standard meter type
- Can be divided into fixed type, station type, and mobile type
- Used for laboratory flow meter calibration, verification, or on-site calibration, etc.
- Gas Distribution System Accessories
- Ball valves: side opening, top opening, welding type
- Gas separation device: used for natural gas fields, gas distribution systems, large gas distribution stations, gas turbine fuel supply, etc.
- Gas filtration device: 20μm series, 5μm series, and 1μm series, used for natural gas fields, gas distribution stations, gas turbine fuel supply, etc.
- Gas heating device: used for natural gas fields, gas distribution systems, large gas distribution stations, gas turbines, and fuel supply occasions
- Electronic Products for Gas Systems
- Flow corrector: performs pressure and temperature correction for gas volume flow rate, and records or alarms related data
- Flow computer: data acquisition for gas distribution systems, gas volume flow correction, data recording and transmission, PLC control
- Remote control operation instrument RTU: data acquisition, processing, recording and transmission, calculation, logic operation, PLC control, remote communication status analysis and alarm
- Gas distribution monitoring system SCADA: local and remote data acquisition for gas distribution systems, data recording and transmission, control, management
