Explore our advanced gas processing systems engineered for maximum efficiency, safety, and operational reliability in high-demand environments.
India is currently undergoing an unprecedented energy transition. The Government of India has laid out a clear roadmap to increase the share of natural gas in the primary energy mix from the current 6.7% to 15% by 2030. To achieve this ambitious target, massive investments are being funneled into the construction of cross-country gas pipelines, Liquefied Natural Gas (LNG) receiving terminals, and extensive City Gas Distribution (CGD) networks.
In any natural gas transport and distribution system, custody transfer measurement is the most critical commercial operation. A **Natural Gas Metering Skid** acts as the "cash register" of the gas grid. It ensures that the volume of gas flowing through a pipeline is measured with absolute accuracy, corrected for pressure and temperature, and regulated to match downstream operational requirements.
As the Indian gas grid expands to cover over 98% of the country's population across various states like Maharashtra, Gujarat, Uttar Pradesh, Tamil Nadu, and West Bengal, the demand for highly reliable, safe, and pre-commissioned metering and regulating skids has skyrocketed. China, with its advanced manufacturing capabilities and robust supply chains, has become the leading supplier of high-quality metering skids tailored to the Indian market.
With multiple bidding rounds completed by the Petroleum and Natural Gas Regulatory Board (PNGRB), thousands of kilometers of steel and MDPE pipelines are being laid, requiring reliable City Gate Stations (CGS).
Strict environmental mandates in industrial clusters like Morbi, Vapi, and Coimbatore are forcing factories to switch from coal/furnace oil to clean natural gas, driving the demand for industrial-grade regulating stations.
All gas installations in India must satisfy the rigorous safety codes of the Petroleum and Explosives Safety Organisation (PESO) and Oil Industry Safety Directorate (OISD).
Supplying gas equipment to India requires deep familiarity with local engineering codes and regulatory bodies. Chinese manufacturers have integrated these standards directly into their design and fabrication processes.
Our skids utilize Ultrasonic Flow Meters (USM) or Turbine Meters compliant with AGA 9 and AGA 7 standards. Flow computers are configured to perform real-time calculation of gas compressibility factor according to AGA 8 and SGERG-88, ensuring precise custody transfer billing.
All electrical instruments, including transmitters, gas detectors, solenoid valves, and junction boxes, are certified by PESO (Petroleum and Explosives Safety Organisation) for Zone 1, Gas Group IIA/IIB, Temp Class T3/T4 hazardous areas.
Piping is designed and fabricated in accordance with ASME B31.8 (Gas Transmission and Distribution Piping Systems). Weld joints undergo 100% Radiography Testing (RT), and the entire skid assembly undergoes hydrostatic strength testing and pneumatic leak tests.
A typical Natural Gas Metering and Regulating Skid designed for the Indian market comprises several integrated modules:
India's unique industrial and geographical landscape demands highly customized metering solutions. Our skids are engineered to perform reliably under the hot and humid conditions of coastal India, as well as the dust-heavy environments of northern industrial belts.
City Gate Stations are the primary entry points where natural gas is received from high-pressure national transmission grids (operated by GAIL, PIL, or GSPL) and stepped down to medium pressure (typically 19-49 bar) for distribution within a city. Our large-scale skids are deployed at CGS sites across India, providing accurate custody transfer measurement between transmission companies and local CGD operators.
Within city boundaries, gas pressure is further reduced at DRS units to 4 bar for commercial and domestic piping. For large industrial consumers—such as steel mills in Odisha, ceramic manufacturers in Morbi, and chemical plants in Gujarat—we supply customized Industrial & Commercial (I&C) metering and regulating skids that handle fluctuating loads while maintaining stable output pressures.
With the rapid expansion of green public transport in India, CNG stations are popping up along major highways and cities. Our high-pressure metering skids (operating up to 250 bar) are designed to feed CNG compressors, ensuring accurate monitoring of gas volumes before compression and dispensing to vehicles.
As major consumers of natural gas, fertilizer plants (producing urea) and gas-based thermal power plants require massive volumes of gas. Our multi-run custody transfer skids, equipped with ultrasonic flow meters and online gas chromatographs, ensure precise billing and process control for these high-flow applications.
The Indian natural gas sector is evolving rapidly, adopting smart technologies and clean energy integrations that shape the design of modern metering skids.
Under the National Green Hydrogen Mission, India is actively exploring the blending of green hydrogen into existing natural gas pipelines (targeting up to 20% blend). This transition changes the physical properties of the gas stream (density, speed of sound, calorific value). Modern metering skids manufactured by Chinese suppliers are already being designed with "Hydrogen-Ready" components, ensuring that flow meters and gas analyzers can accurately calculate energy values for hydrogen-natural gas mixtures.
Indian gas distribution companies (Discoms) are shifting toward automated, unmanned stations. This requires skids to be equipped with smart transmitters, remote diagnostic capabilities for ultrasonic meters, and cloud-based data logging. Real-time monitoring of filter differential pressure, regulator position, and gas leakage ensures preventive maintenance and minimizes downtime.
The SATAT (Sustainable Alternative Towards Affordable Transportation) initiative in India encourages the setup of Compressed Bio-Gas (CBG) plants using agricultural waste. Our specialized biogas purification and metering skids are designed to process biogas, remove corrosive H2S and moisture, and accurately measure the purified CBG before it is injected into the commercial gas grid.
Due to land acquisition challenges and tight project timelines in India, there is a strong preference for fully integrated, "plug-and-play" skid-mounted systems. By assembling, wiring, and testing the entire system in our factory in China, we minimize onsite civil works and commissioning times in India, enabling rapid network rollout.
With excellent products and service, to become the world famous brand of exports.
Xuzhou Huayan Energy Technology Co., Ltd. is a leading energy equipment supplier headquartered in Xuzhou, Jiangsu Province, China, operating from a 91,260-square-meter facility. With a heritage of design and manufacturing expertise since 1965, we possess comprehensive in-house capabilities spanning forging, casting, heat treatment, welding, machining, assembly testing, and advanced technical inspection.
We deliver customized product design, manufacturing, installation, and integrated project solutions for critical sectors including national defense, aerospace, nuclear power, and petrochemicals. Our core offerings encompass air separation and purification systems such as PSA/VPSA nitrogen & oxygen generators and cryogenic air separation units, energy application equipment including CNG and diesel generators, and industrial gas purification solutions for natural gas processing, LNG plants, helium extraction, and carbon capture.
Learn MoreTracing our roots back to over a century of manufacturing excellence, innovation, and technical evolution.
French, Belgian investment in China to build the Longhai railway, established the Xuzhou Longhai railway locomotives repair factory.
China Railway Army Engineering Department took over the establishment of the People's Liberation Army Railway Corps mechanical repair factory.
It was renamed the PLA 6414 Factory and produced the first air compressor.
The first diaphragm compressor was produced.
The company expanded its scale, and the entire factory moved to No. 99, Yangshan Road, Xuzhou Economic Development Zone. The hardware facilities were further upgraded.
Establish Xuzhou Huayan Group.
The company moved into a brand-new, self-owned office space and expanded its staff.
Long-term and in-depth cooperation with China University of Mining and Technology and Xi'an Jiaotong University. We leverage cutting-edge thermodynamic and fluid dynamic research to design highly efficient gas processing equipment.
100% Customer Satisfaction
Professional After-sales Team for India & Global Support
Strict Quality Control & Shop Testing Protocols
Our gas solutions and metering skids are engineered to meet the demanding requirements of diverse high-tech and heavy industrial sectors.

High-reliability gas supply systems, inerting systems, and specialized gas purification setups engineered for strategic defense applications.

High-purity nitrogen and oxygen systems for rocket propellant purging, engine testing, and specialized laboratory environments.

Critical safety-grade gas processing, pressure regulation, and backup gas storage systems tailored for nuclear power generation facilities.

Inert blanketing for reactors, pipeline/vessel purging, nitrogen drilling, and gas displacement solutions in oil & gas fields.
Collaborating with leading Chinese manufacturers for Natural Gas Metering Skids offers several strategic advantages to Indian gas distribution companies and EPC contractors:
Chinese factories operate with optimized supply chains and large-scale manufacturing facilities. This allows us to source raw materials, valves, and structural steel at lower costs while maintaining high-quality fabrication. The savings are passed directly to Indian buyers, making our skids highly competitive compared to localized European or domestic Indian fabricators.
Our 91,260-square-meter facility features advanced testing bays, including high-pressure pneumatic test loops, hydrostatic testing equipment, and electrical loop testing. We perform complete functional tests of the flow computers, PLC systems, and instrumentation before the skid leaves our factory. This ensures minimal field-commissioning issues in India.
Every pipeline project has unique parameters regarding inlet pressure, flow range, gas composition, and control logic. Our experienced engineering team works closely with Indian clients to design customized skids using 3D modeling software (such as SolidWorks and PDMS). We ensure that the skid configuration matches the specific requirements of the local gas company (e.g., GAIL, Adani, Torrent, or IGL).
To ensure high reliability and easy maintenance in India, we integrate top-tier global brands for critical instruments. This includes flow meters from Daniel or Instromet, pressure regulators from Fisher or Tartarini, valves from Cameron, and flow computers from FloBoss or OMNI. This guarantees that spare parts and local support are readily available in India.
Explore our comprehensive portfolio of gas purification, air separation, and power generation equipment engineered to meet Indian industrial specifications.
We collaborate with world-class engineering universities and integrate premium instrumentation components to guarantee the performance of our metering skids.















