Overview of LPG
What is LPG
Liquefied Petroleum Gas (LPG) is a clean, efficient, and versatile fuel commonly used for cooking, heating, industrial processes, and commercial applications. LPG is primarily made up of propane and butane gases, which are stored under pressure in liquid form for easy storage and transportation. When released from a cylinder or storage tank, the liquid converts into gas that can be used as fuel for a wide range of equipment and appliances. LPG is valued for its portability, reliability, high energy efficiency, and cleaner-burning properties compared to many traditional fuels.
Applications of LPG
LPG is a versatile energy source used across a wide range of residential, commercial, and industrial applications. In homes, LPG is commonly used for cooking, water heating, and outdoor appliances because it provides fast, efficient, and controllable heat. In the food and hospitality industry, LPG powers commercial kitchens, restaurants, hotels, cafes, bakeries, and street food operations that require reliable daily energy supply. LPG is also widely used in manufacturing and industrial environments for boilers, furnaces, burners, drying systems, metal cutting, and production processes that depend on consistent heat generation. In the agricultural sector, LPG can be used for crop drying, poultry farming, greenhouse heating, and other farming operations where dependable energy is essential.
As LPG is portable and easy to store, it is suitable for both urban and remote locations where stable energy access is important. We support these applications by providing reliable LPG supply, gas cylinders, storage systems, safety equipment, and professional gas solutions tailored to different operational needs.
As LPG is portable and easy to store, it is suitable for both urban and remote locations where stable energy access is important. We support these applications by providing reliable LPG supply, gas cylinders, storage systems, safety equipment, and professional gas solutions tailored to different operational needs.
Industry Usage
LPG is widely used in manufacturing, metal processing, heating systems, drying applications, boilers, burners, and other industrial processes that require stable and efficient heat generation. Many industries choose LPG because it is a clean-burning fuel that helps improve operational efficiency while reducing emissions and maintenance requirements. We offer support through gas system installation, cylinder and tank supply, pressure regulation systems, safety equipment, maintenance services, and technical consultation to ensure safe and efficient LPG operations. By delivering dependable supply and professional service, we help industrial customers maintain productivity and operational reliability.
Thailand's LPG Law and Regulation
Thailand’s LPG regulations establish safety requirements for the storage, installation, operation, and maintenance of LPG systems. The regulations cover areas such as storage capacity classifications, installation distances, fire protection systems, electrical safety, ventilation, hazardous areas, and inspection requirements for LPG cylinders, tanks, piping systems, and gas-use facilities. Different requirements apply depending on the quantity of LPG stored and the type of installation.
For larger industrial LPG systems, additional requirements may include engineering drawings, certified inspections, fire protection systems, gas leak alarms, and regulatory approvals. CECO can assist with LPG system design, equipment selection, installation, and compliance support based on applicable Thai regulations.
For larger industrial LPG systems, additional requirements may include engineering drawings, certified inspections, fire protection systems, gas leak alarms, and regulatory approvals. CECO can assist with LPG system design, equipment selection, installation, and compliance support based on applicable Thai regulations.
LPG & NH3 Equipment
What types of LPG and NH3 equipment does CECO supply?
CECO supplies a wide range of LPG and NH3 equipment for industrial and commercial gas systems. Our product range includes LPG vaporizers, pressure regulators, safety relief valves, automatic changeover systems, liquid overflow prevention devices, gas meters, gas detectors, tank accessories, and pipeline accessories. We also provide NH3-related equipment designed for ammonia gas applications and industrial processing systems. Our sales team can recommend the most suitable equipment based on your gas consumption, operational requirements, and system application to ensure safe and efficient performance.
What is NH3 equipment used for?
NH3 equipment is used for handling and controlling ammonia gas (NH3) in industrial applications. Ammonia is commonly used in refrigeration systems, food processing plants, cold storage facilities, chemical manufacturing, and various industrial production processes. NH3 equipment includes pressure regulators, valves, safety devices, vaporizers, piping systems, and control equipment designed to safely manage ammonia from storage, transfer, through to operation. Properly designed NH3 systems help improve operational efficiency while maintaining safety and compliance with industrial standards.
What is an automatic changeover system?
An automatic changeover system is a gas supply control system designed to automatically switch from an empty LPG cylinder to a standby cylinder without interrupting the gas supply. It helps maintain continuous gas flow for industrial, commercial, and applications where a stable and continuous gas supply is important. The system typically includes regulators, valves, and monitoring components that ensure smooth and safe operation while reducing downtime caused by manual cylinder replacement.
How do I select the correct LPG or NH3 equipment for my application?
Selecting the correct LPG or NH3 equipment depends on the specific application, gas demand, operating conditions, and system design requirements. Important factors to consider include the type of gas being used, required flow rate, operating pressure, temperature conditions, installation environment, and safety requirements. Different applications may require different equipment such as vaporizers for stable gas supply, regulators for pressure control, automatic changeover systems for continuous operation, or safety valves and gas detectors for system protection. For industrial projects, equipment selection should also consider operational capacity, compliance with safety standards, and compatibility with existing systems to ensure efficient and reliable performance.
Cryogenic & LNG Equipment
What is cryogenic equipment?
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What is the difference between LPG and LNG?
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What cryogenic equipment does CECO-GAS supply?
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Oil / Gas Burners & Control Devices
What are industrial gas burners used for?
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What is the difference between oil and gas burners?
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What are burner control devices?
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How do burner control systems improve safety?
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Quotation and Project Delivery
Information needed for Quotation
To provide an accurate quotation, we will require details such as the type of gas system or equipment needed, consumption requirements, installation location, project scope, and any relevant drawings or specifications. For industrial projects, information about operational capacity, existing systems, and site conditions may also be requested. Our team will review your requirements and recommend the most suitable solution for your application.The more information provided, the more accurately our specialist team can recommend the most suitable solution and qoutation for your project.
Project Delivery and Timeline
Project delivery timelines depend on the size, complexity, and scope of the project. Standard product deliveries may take only a few days, while complete gas system installations or engineering projects may require several weeks or months for design, fabrication, delivery, and installation. After reviewing your project requirements, our specialist team will provide an estimated timeline and keep you informed throughout each stage of the process.
Service and Maintenance
Vaporiser Service and Maintenance
Regular inspection of the vaporizer during operation is required to ensure that it is functioning as intended. Please refer to the table below, which describes the parts of the vaporizer that require inspection, along with instructions on how to check these parameters. The inspection schedule is divided into daily, quarterly, annual, and five-year intervals.
Daily
| Item | Description | Normal Parameters |
| LPG Pressure | Check LPG Pressure in pressure gauge | 2-12 barg |
| LPG temperature | Check LPG temperature in gas temperature gauge | Above 110% of Ambient temperature |
| Water temperature | Check the water temperature in water temperature gauge | 60-65°C (setting 65°C) |
| Water level | Check the water level in the level gauge | Water level is middle to high level |
| Leak test for gas | Check all connections for gas leak by using a gas detector or soap water | No leakage |
| Leak test for water | Check all connections for water leak in the water bath | No leakage |
Quarterly
| Item | Description | Normal Parameters |
| Gas Drainage | Check gas connections by using the gas drain valve | Clean LPG |
| Water drainage | Check water conditions using the water drain valve | Clean water, pH 9.5-11 |
Annually
| Item | Description | Normal Parameters |
| Water inside the water bath | The water and anti-corrosive or anti-freezing solution inside the water bath need to be replaced regularly | Replacement of the water and anti-corrosive or anti-freezing solution inside the water bath |
| Float type Liquid LPG overflow prevention device | Check the function of the float type LPG liquid overflow prevention device by resetting the float | The float overflow prevention device blocks liquid LPG out |
| Water temperature switch for the heater operation | Check the function of the water temperature switch for the electric heater | The electric heaters and the magnetic contactor are on at 60-65°C when water temperature is set to 65°C |
| Water temperature switch for water overheat prevention | Check the function of Water temperature switch for water overheat prevention | The electric heaters and the magnetic contactor do not work at 75°C when the switch is set to 75°C |
| Water level switch and level controller | Check the function of Water level switch and level controller | The magnetic contactor and the heaters are turned off when water level is low. In this case, add water. |
| Water level gauge | Check the function of Water level gauge. After an overhaul, compare the actual water level with the level on the gauge | See Figure 1. for more details |
| Pressure safety valve | Check the function of pressure safety valve | Pressure relief valve discharges when pressure inside is above 17.6 barg |
| Magnetic contactor | Check the function of Magnetic contactor | The magnetic contactor works when the heater is on and the vaporizer is in normal operation. Normal output voltage is 220V |
| Electric heater | Check the function of the electric heater | Please refer to Figure 2. below for Resistance value between phases of electric heater |
| Electric transformer | Check the function of Electric transformer | Check input voltage (380V), and output voltage converted to 220V |
Figure 1. Indication of When to fill Water into KEV-Series Electric water bath Vaporizers
Figure 2. Resistance Value between Phases of Electric Heater
| Heater Capacity (kW/hr) | 220V 1P | 220V 3P | 380V 3P | 400V 3P | 415V 3P | 420V 3P | 440V 3P |
| 4.5 | 10.77 | 21.51 | 64.18 | 71.11 | 76.54 | 78.40 | 86.04 |
| 7.5 | 6.46 | 12.91 | 38.51 | 42.67 | 45.93 | 47.04 | 51.63 |
| 17 | 3.23 | 6.45 | 19.25 | 21.33 | 22.96 | 23.52 | 25.81 |
| 22.5 | 2.15 | 4.30 | 12.84 | 14.22 | 15.31 | 15.68 | 17.21 |
| 25 | - | 3.87 | 11.55 | 12.80 | 13.78 | 14.11 | 15.49 |
| 30 | - | 3.23 | 9.63 | 10.67 | 11.48 | 11.76 | 12.91 |
| 35 | - | - | 8.25 | 9.14 | 9.84 | 10.08 | 11.06 |
| 40 | - | - | 7.22 | 8.00 | 8.61 | 8.82 | 9.68 |
| 45 | - | - | 6.42 | 7.11 | 7.65 | 7.84 | 8.60 |
| 50 | - | - | 5.78 | 6.40 | 6.89 | 7.06 | 7.74 |
| 55 | - | - | 5.25 | 5.82 | 6.26 | 6.41 | 7.04 |
| 60 | - | - | 4.81 | 5.33 | 5.74 | 5.88 | 6.45 |
Components requiring replacement at 5-year intervals or after malfunction
- Water temperature switches
- Water level switch and level contactor
- Magnetic contactor
- Electric heater
- Electric Transformer
Troubleshooting Vaporiser
In rare cases, vaporiser malfunctions may occur due to various causes. The tables below outline the most common issues.
Abnormal Water Temperature
| Cause | Solution |
| Trouble in power | Check power lamp and repaire power supply |
| Failure of the level switch or low water level | Add water, and if trouble continues replace the level switch |
| Fuse (melted internal conductor) | Check fuse or replace |
| Failure of the magnetic contactor | Check contacting area and repair or replace |
| Failure of the electric heater | Check the phase-to-phase resistance and replace the heater if it is abnormal |
Trouble in Gas Supply
| Cause | Solution |
| Failure of the inlet valve | Check the vaporizer pressure. If it is abnormal, repair or replace the valve |
| Abnormal water temperature | Verify the causes of abnormal water temperature and take corrective action |
| Gas usage exceeded specified capacity | Check gas consumption and contact Ceco Service |
Frost at the Outlet of Vaporizer
| Cause | Solution |
| Failure of the liquid overflow preventation device | Check cause of abnormal water temperature or gas consumption and contact Ceco Service |
Actuation of Circuit Breaker
| Cause | Solution |
| Insufficient capacity of circuit breaker | Replace circuit breaker with adequate capacity |
| Damage on the heater | Replace the heater |
| Damage on the water level switch | Replace the water level switch |
| Short circuit | Check wiring and repair |
How to reset Liquid Overflow Prevention Device
- Close Inlet & Outlet valves.
- Discharge gas from the vaporizer (Drain slowly using the drain valve while checking pressure gauge).
- Press the blue button vertically on top of the vaporizer.
- Check for any issues with the gas supply and inspect for frost at the vaporizer outlet. If the problem persists, please contact our support team. Otherwise, proceed to Step 5.
- Supply gas into the vaporizer and resume operation.
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