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HUAYAN
This series of pressure-regulating boxes is primarily designed for medium and low-pressure gas transmission and distribution systems. Each unit includes a filter, pressure regulator (with self-shutoff and release functions), ball valve, pressure gauge, and enclosure. The box features a compact structure, easy maintenance, and reliable safety performance. It is suitable for use in civil buildings and at small to medium-sized sites, such as apartment complexes, hotels, and restaurants. Additionally, it can be used with low-pressure gas boilers and small direct-fired turbines. The enclosure is manufactured from stainless steel, spray-coated cold-rolled steel or fiberglass.

All products can be customized as required please contact us
| Technical parameters | |
| Structural mode: | two-stage pressure regulation, overall skid-mounted. |
| Rated gas supply: | 1000m³/h |
| Inlet pressure: | 25MPa |
| Outlet pressure: | 0.2-0.4MPa |
| Pressure reduction level: | 2 levels |
| Heat exchange level: | 2 levels |
| Heat exchange temperature: | 60-75ºC |
| Outlet temperature: | ≥-5ºC |
| Shut-off valve power: | 0.2-0.6Mpa (compressed air) |
| Alarm mode: | sound and light dual alarm |
| Medium: | compressed natural gas |

Main features:
Integrated equipment that integrates pressure regulation, metering, filtration, safety cut-off and safety release.
Strict performance tests (air tightness test and pressure test) are carried out before leaving the factory. After reaching safety and stability, it can be shipped from the factory.
The equipment has a reasonable structural design, beautiful appearance, small footprint, and meets environmental protection and aesthetic requirements. Suitable for indoor and outdoor installation.
Good scalability, gas alarm, data acquisition and insulation and other supporting projects can be added according to user requirements, which can meet the use requirements of various working conditions.
The equipment is easy to install and debug, use and maintain.
Reasonable structure, complete functions, high reliability, good system coordination

advantage:
Our multi-support parts-including emergency valves, pressure gauges, and safety valves-are precision-engineered with shot-blasted surfaces, epoxy coatings, and acrylic finishes for superior rust resistance and durability. Designed to deliver precise control, safety-focused functionality, and long-term reliability, they are backed by over two decades of expertise, advanced welding technology, and stringent quality control standards.

ABOUT US
Jiangsu Huayan International Trade Co., Ltd. was established in 2005 and is headquartered in Xuzhou, Jiangsu Province, China. It is a leading integrated transportation solution provider integrating R&D, production and trade. Covering an area of 222,000 square meters, the company uses advanced automation equipment, a professional R&D team and cutting-edge manufacturing technology to provide high-quality special transportation equipment, including gas equipment (hydraulic modular trailers,gas pipeline slide container trailers, powder/liquid tankers and a full range of semi-trailers(heavy-duty low-bed,) for energy, hazardous chemical transportation and engineering logistics. Its core hydraulic system is compatible with international brands such as Goldhofer and Scheuerle, ensuring compliance with global technical standards. The company has more than 20 years of export experience and serves more than 30 countries including Peru, India, Russia and Brazil. The company has passed ISO9001, ASME, ADR certification, has a R&D team of more than 60 people (including 8 senior engineers), and has achieved a 100% order delivery rate through ERP+MES digital management. The company is committed to sustainable development, adhering to the values of innovation, quality, expertise and mutual benefit, and providing safe, efficient and environmentally friendly transportation solutions worldwide.


Patent certificate
Our company's products have passed IS09001, 14001 and CE certificates, and we can alsoprovide relevant certificates that meet customer national requirements

Cooperative Brand

Our Customers

Core Technology Team

Cooperation Process

After order

Delivery capability
Our company will prepare a delivery schedule for your project, and we have good logisticscapabilities to provide you with domestic and international logistics delivery capabilities in China.


FAQ
1. What are the main components of a CNG long tube trailer?
trailer , framework , large-cubage seamless steel cylinders ,for safety cabin ,back operation cabin
2. What products can you provide?
We specialize in producing LPG cylinders, LNG cylinders, Cryogenic Liquid Storage tanks (LO2, LN2, LAr, LCO2, and LNG), etc. Any interests you can feel to contact us for details.
3. May I have the best price from you?
Sure. We are always on the way to promoting our product price and service competitiveness.
4. Do you provide a one-stop service so I can save my time and labor?
You will own a professional team in China by cooperating with HUAYAN
5. What's the delivery time?
If the standard models are in stock, we can ship them out within 10 -15 days after payment.
If customized, 15-20 days can be ready for shipment.
This series of pressure-regulating boxes is primarily designed for medium and low-pressure gas transmission and distribution systems. Each unit includes a filter, pressure regulator (with self-shutoff and release functions), ball valve, pressure gauge, and enclosure. The box features a compact structure, easy maintenance, and reliable safety performance. It is suitable for use in civil buildings and at small to medium-sized sites, such as apartment complexes, hotels, and restaurants. Additionally, it can be used with low-pressure gas boilers and small direct-fired turbines. The enclosure is manufactured from stainless steel, spray-coated cold-rolled steel or fiberglass.

All products can be customized as required please contact us
| Technical parameters | |
| Structural mode: | two-stage pressure regulation, overall skid-mounted. |
| Rated gas supply: | 1000m³/h |
| Inlet pressure: | 25MPa |
| Outlet pressure: | 0.2-0.4MPa |
| Pressure reduction level: | 2 levels |
| Heat exchange level: | 2 levels |
| Heat exchange temperature: | 60-75ºC |
| Outlet temperature: | ≥-5ºC |
| Shut-off valve power: | 0.2-0.6Mpa (compressed air) |
| Alarm mode: | sound and light dual alarm |
| Medium: | compressed natural gas |

Main features:
Integrated equipment that integrates pressure regulation, metering, filtration, safety cut-off and safety release.
Strict performance tests (air tightness test and pressure test) are carried out before leaving the factory. After reaching safety and stability, it can be shipped from the factory.
The equipment has a reasonable structural design, beautiful appearance, small footprint, and meets environmental protection and aesthetic requirements. Suitable for indoor and outdoor installation.
Good scalability, gas alarm, data acquisition and insulation and other supporting projects can be added according to user requirements, which can meet the use requirements of various working conditions.
The equipment is easy to install and debug, use and maintain.
Reasonable structure, complete functions, high reliability, good system coordination

advantage:
Our multi-support parts-including emergency valves, pressure gauges, and safety valves-are precision-engineered with shot-blasted surfaces, epoxy coatings, and acrylic finishes for superior rust resistance and durability. Designed to deliver precise control, safety-focused functionality, and long-term reliability, they are backed by over two decades of expertise, advanced welding technology, and stringent quality control standards.

ABOUT US
Jiangsu Huayan International Trade Co., Ltd. was established in 2005 and is headquartered in Xuzhou, Jiangsu Province, China. It is a leading integrated transportation solution provider integrating R&D, production and trade. Covering an area of 222,000 square meters, the company uses advanced automation equipment, a professional R&D team and cutting-edge manufacturing technology to provide high-quality special transportation equipment, including gas equipment (hydraulic modular trailers,gas pipeline slide container trailers, powder/liquid tankers and a full range of semi-trailers(heavy-duty low-bed,) for energy, hazardous chemical transportation and engineering logistics. Its core hydraulic system is compatible with international brands such as Goldhofer and Scheuerle, ensuring compliance with global technical standards. The company has more than 20 years of export experience and serves more than 30 countries including Peru, India, Russia and Brazil. The company has passed ISO9001, ASME, ADR certification, has a R&D team of more than 60 people (including 8 senior engineers), and has achieved a 100% order delivery rate through ERP+MES digital management. The company is committed to sustainable development, adhering to the values of innovation, quality, expertise and mutual benefit, and providing safe, efficient and environmentally friendly transportation solutions worldwide.


Patent certificate
Our company's products have passed IS09001, 14001 and CE certificates, and we can alsoprovide relevant certificates that meet customer national requirements

Cooperative Brand

Our Customers

Core Technology Team

Cooperation Process

After order

Delivery capability
Our company will prepare a delivery schedule for your project, and we have good logisticscapabilities to provide you with domestic and international logistics delivery capabilities in China.


FAQ
1. What are the main components of a CNG long tube trailer?
trailer , framework , large-cubage seamless steel cylinders ,for safety cabin ,back operation cabin
2. What products can you provide?
We specialize in producing LPG cylinders, LNG cylinders, Cryogenic Liquid Storage tanks (LO2, LN2, LAr, LCO2, and LNG), etc. Any interests you can feel to contact us for details.
3. May I have the best price from you?
Sure. We are always on the way to promoting our product price and service competitiveness.
4. Do you provide a one-stop service so I can save my time and labor?
You will own a professional team in China by cooperating with HUAYAN
5. What's the delivery time?
If the standard models are in stock, we can ship them out within 10 -15 days after payment.
If customized, 15-20 days can be ready for shipment.