Your Safe Choice of Gas Appliances & Parts

When it comes to gas appliances and parts, your safety is our priority - making us the reliable choice for your business needs.

Our brand name stands for quality assurance.

Equipments and Technique

Hwashow maintains aluminium alloy die casting processing and advanced precision machining facilities. We adopt the latest production technique to create value for our clients.

Below is the manufacturing process for gas stove valves as an example:

Aluminum Ingots

1. Selecting the right aluminum ingots to die cast the rough valve bodies.

Die Casting of Rough Valve Bodies

2. Die casting of rough valve bodies is a process where molten metal, typically an aluminum alloy, is injected into a mold or die to create the basic shape of the valve body.

Shot-Blast Cleaning

3. Shot-blast cleaning is a crucial post-casting process used to clean and prepare rough valve bodies for further machining or finishing. It helps remove surface contaminants such as scale, oxide layers, and casting residues, leaving the valve bodies with a uniform, smooth surface.

Precision Machining

4. Precision machining of gas stove valve bodies is a critical step that ensures the valve bodies meet the exact specifications required for proper functionality and safety in gas appliances. The process involves removing material from the rough cast valve body to achieve tight tolerances, smooth surface finishes, and specific design features necessary for the valve's performance.

Precision Machining

5. The process of precision machining a copper rod into a valve core involves transforming the raw material (copper rod) through several precise machining steps to meet the required design specifications. This process requires a high degree of accuracy to ensure that the valve core has good sealing performance, wear resistance, and corrosion resistance, allowing it to function reliably in gas control systems.

Grinding, Ultrasonic Cleaning & Drying

6. The process of grinding, ultrasonic cleaning, and drying of precision machined parts is typically used to ensure the surface finish, cleanliness, and dryness of the parts, meeting high-quality requirements, especially in precision manufacturing.

Part Assembly

7. Part Assembly refers to the process of assembling individual components into a finished product or functional subassembly. This procedure is essential in industries like manufacturing, where precision, quality control, and efficiency are critical.

Leak Tightness Testing

8. Leak tightness testing, also known as leakage testing or seal testing, is a method used to detect whether a product or component (such as valves, pipes, containers, etc.) has any leaks and to ensure that it does not leak gas or liquid during operation. This is especially important for products requiring high levels of sealing, such as gas appliances, gas valves, and piping systems.

Flow Testing

9. Flow Testing is the process used to measure the quantity or rate at which fluids (such as gases or liquids) flow through a system. This testing is crucial for many industrial applications, such as in gas appliances, liquid delivery systems, HVAC systems, and hydraulic systems. Flow testing ensures the efficiency, performance, and safety of the system.

Open Flame Testing

10. Open Flame Testing is a critical safety procedure used to ensure that gas valves function properly and do not pose any fire hazard when exposed to an open flame. This testing helps verify that the valves can withstand the conditions they will encounter during normal operation and that they do not contribute to fire risks.

Current Testing for Solenoid Valves

11. Testing the current of a solenoid valve can help determine if it's operating correctly.

Mechanical Testing of Micro Switches

12. Mechanical testing of a micro switch ensures it is operating correctly and helps identify any mechanical faults.

Superior Materials We Use

Aluminum Ingots

Aluminum ingots are typically produced through a process that involves melting aluminum and casting it into molds. The ingots are often created from recycled aluminum or primary aluminum from bauxite ore.

Copper Rods

Copper rods are produced by drawing copper through dies to achieve the desired diameter. The process often involves melting copper ingots and then casting and extruding them into rod form.

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