Looking for an automatic water level control solution for your storage tanks, rooftop reservoirs, or industrial water supply systems? The Minh Hòa Float Valve is a reliable choice trusted by many engineers and contractors. Manufactured using modern production lines, it meets BS 21/ISO 228-1:2000 standards and is made from premium brass combined with durable HDPE plastic, ensuring the safety of clean water sources.
With its intelligent mechanical design, the Minh Hòa Float Valve operates entirely automatically without the need for electricity. It prevents water overflow, reduces costs, and minimises operational risks. Particularly, with sizes ranging from DN20 to DN100, the Minh Hòa Float Valve is versatile enough to serve both small tanks and large industrial water supply systems, providing users with peace of mind.

Outstanding Features of the Minh Hòa Float Valve
Compared to many other products on the market, the Minh Hòa Float Valve offers several superior advantages:
- Fully Mechanical Operation, No Electricity Required: The valve operates based on the buoyancy of the float, automatically opening or closing according to the water level, thereby helping to reduce energy costs.
- International Manufacturing Standards: The product meets BS 21/ISO 228-1:2000 standards, ensuring high precision and compatibility with a wide range of piping systems.
- Premium Materials: The valve body is made from brass, the shaft is constructed from brass or stainless steel, and the float is made from durable, corrosion-resistant HDPE plastic, ensuring longevity in clean water environments.
- High Temperature and Pressure Resistance: The valve operates reliably at temperatures up to 90°C and under high pressure, making it suitable for a wide range of applications, from residential to industrial systems.
- Compact Design, Easy Installation: The D40 float valve has a simple structure with few detachable parts, making installation quick and maintenance easy.
Thanks to these features, the product not only helps maintain a stable water level but also provides peace of mind to users throughout the operation of the system.
Technical Specifications of Minh Hòa Float Valve
| Specification | Value | Notes |
|---|---|---|
| Product Name | Minh Hòa Float Valve (DN20 – DN100) | Full range from DN20 → DN100 |
| Manufacturing Standard | BS 21 / ISO 228-1:2000 | High precision, easy installation |
| Nominal Size (DN) | DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100 | Various options to suit needs |
| Connection Thread Size | 3/4″ – 4″ | Corresponding to each DN size |
| Valve Body Material | Premium Brass | Corrosion-resistant, durable |
| Valve Shaft | Brass / Stainless Steel | Increased hardness, long lifespan |
| Float | High-strength HDPE Plastic | Lightweight, watertight, corrosion-resistant |
| Operating Temperature | Max 90°C | Suitable for both domestic and industrial water |
| Operating Pressure | PN10 – PN16 | 10–16 bar |
| Main Applications | Storage tanks, underground water tanks, rooftop tanks, and cooling towers | Automatic water level control |
Real-World Applications of the Minh Hòa Float Valve
Thanks to its intelligent mechanical design and stable operation, the Minh Hòa Float Valve is widely used in various fields:
- Domestic Water Supply Systems: Installed in household water tanks, underground reservoirs, rooftop tanks, etc., it automatically opens or closes the flow, preventing overflow and reducing water wastage.
- High-rise Buildings & Urban Areas: Used in centralized water supply systems, ensuring stable water levels in large storage tanks and reducing the load on pumps.
- Industrial Projects: Applied in factories, industrial plants, and production workshops that require continuous water supply, helping maintain stable pressure and flow rates.
- Cooling Systems & Cooling Towers: The Minh Hòa Float Valve regulates the water level in cooling tanks, ensuring effective and safe cooling processes for equipment.
- Agricultural Applications: Used in water storage tanks and automated irrigation systems, helping to save water and optimize operating costs.
With a wide range of sizes from DN20 to DN100, the Minh Hòa Float Valve meets the needs of both domestic and industrial applications, offering convenience, cost savings, and superior durability for users.
Economic Benefits of Minh Hòa Float Valve
The Minh Hòa Float Valve is not just a water level regulation device—it also brings significant economic value to users:
- Effective Water Savings: The automatic opening and closing mechanism helps prevent overflow, leakage, and water loss—especially beneficial in large-scale projects.
- No Electricity Consumption: The valve operates entirely mechanically, without the need for an electrical connection, reducing operating costs compared to electric valves or electronic sensors.
- High Durability, Low Maintenance: Made from high-quality brass and HDPE plastic, the product has a long lifespan, requires minimal repairs, and reduces replacement and maintenance costs.
- Reduces Pressure on Pump Systems: Maintaining stable water levels helps the pump system run more efficiently, saving energy and extending the life of the equipment.
- Reasonable Investment Costs: Compared to electronic float valves, the Minh Hòa Float Valve offers competitive pricing, making it suitable for both households and businesses.
Thanks to these benefits, the product not only optimises costs in the short term but also ensures long-term operational efficiency and sustainability.
Installation Guide for Miha Float Valve
To ensure that the Minh Hòa Float Valve operates smoothly and lasts for a long time, users should follow the installation and maintenance procedures below:
Preparation Before Installation
- Check the Product: First, thoroughly inspect the valve and accompanying accessories to ensure there is no damage during transportation.
- Prepare the Necessary Tools: Gather the required tools such as wrenches, spanners, and Teflon tape to ensure the installation process goes smoothly.
Installing the Float Valve
- Choose the Installation Location: Select an appropriate position inside the water tank or reservoir where the float can move up and down freely.
- Connect the Pipe: Attach the valve to the water supply pipe using threads or flanges (depending on the DN size, from DN20 to DN100). Use Teflon tape to ensure a tight seal and prevent leaks.
- Adjust the Float Arm: Adjust the length of the float arm to set the desired water level. When the water rises to the set level, the float will rise and close the valve; when the water level drops, the float will open the valve again.
Post-Installation Check
- Turn On the Water: After installation, turn on the water supply and observe the operation of the valve.
- Check the Valve Operation: Ensure that the valve opens and closes smoothly, without sticking or leaking water. If needed, adjust the float arm position to achieve the desired water level.
Regular Maintenance
To ensure the Minh Hòa Float Valve continues to operate reliably, perform routine maintenance:
- Clean the Valve and Float: Regularly clean any dirt or debris that may accumulate on the valve body and float.
- Inspect the Threaded Connections: Check the connections for any looseness. Tighten them if necessary to prevent leaks.
- Replace Damaged Parts: If any parts, such as the float or other components, show signs of damage or wear, replace them promptly to maintain proper function.
Latest Price List for Minh Hòa Float Valve (2025) – For Reference
| Product Specification | Nominal Size (DN) (mm) | Size (inch) | Material | Reference Price (VND) |
|---|---|---|---|---|
| Minh Hòa Float Valves DN20 (D20) | 20 | 3/4″ | Brass + HDPE | 120,000 – 180,000 |
| Minh Hòa Float Valves DN25 (D25) | 25 | 1″ | Brass + HDPE | 150,000 – 250,000 |
| Minh Hòa Float Valves DN32 (D32) | 32 | 1 1/4″ | Brass + HDPE | 250,000 – 380,000 |
| Minh Hòa Float Valves DN40 (D40) | 40 | 1 1/2″ | Brass + HDPE | 350,000 – 500,000 |
| Minh Hòa Float Valves DN50 (D50) | 50 | 2″ | Brass + HDPE | 500,000 – 700,000 |
| Minh Hòa Float Valves DN65 (D65) | 65 | 2 1/2″ | Brass / Stainless Steel | 750,000 – 1,050,000 |
| Minh Hòa Float Valves DN80 (D80) | 80 | 3″ | Brass / Stainless Steel | 1,100,000 – 1,400,000 |
| Minh Hòa Float Valves DN100 (D100) | 100 | 4″ | Brass / Stainless Steel / Cast Iron | 1,500,000 – 2,000,000 |
Note: The prices are for reference only and may vary depending on the timing and order quantity. Please contact Bao Tin Steel directly for the most accurate pricing.
At Bao Tin Steel, we are committed to providing genuine Minh Hòa Float Valves at competitive prices, offering expert technical support and fast nationwide delivery.
Contact us today via Hotline, Zalo, or Email to receive detailed advice and the best special pricing for your project!

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