Miha Swing Check Valve

MIHA Swing Check Valve is designed to control one-way flow in piping systems, preventing backflow that could damage equipment. The product is manufactured by Minh Hòa Investment Joint Stock Company, one of the leading reputable brands in industrial valve equipment in Vietnam. With a traditional swing design, premium brass material, and excellent pressure and temperature resistance, the MIHA check valve is an ideal choice for both residential and industrial applications.

Outstanding Features of the MIHA Swing Check Valve

• Premium Brass Material: The body, cover, and disc are all made from high-quality brass, increasing durability, corrosion resistance, and suitability for various working environments such as clean water, light oil, and compressed air.
• Simple Design – Efficient Operation: The swing disc operates fully automatically according to the flow direction, preventing backflow without the need for electricity or auxiliary control.
• High Pressure & Temperature Resistance: Depending on the product line, the valve can withstand pressures up to 20 Bar and temperatures up to 120°C, suitable for many industrial and residential systems.
• International Thread Standards: Equipped with BS 21 / ISO 228-1:2000 standard threads for easy installation, replacement, and compatibility with various pipe fittings.
• Wide Size Range: Available from ½ inch to 4 inches (DN15 to DN100), offering flexibility for different pipe diameters.
• Trusted Vietnamese Brand: Produced by Minh Hòa – a company with over 25 years of experience in water industry equipment manufacturing, widely used in residential, commercial, and industrial projects.

MIHA Swing Check Valve

MIHA Swing Check Valve Technical Specifications

MIHA check valves are produced in various lines such as MIHA – XK, Standard MIHA, MBV, and MI to meet diverse application needs. Below are the typical specifications for the MIHA – XK line, notable for high-pressure resistance and exceptional durability:

MIHA – XK Technical Specifications (High Pressure 20 Bar)

• Material: Entire body, cover, and disc made of brass
• Connection: Internal thread – BS 21 / ISO 228-1:2000 standard
• Maximum Working Pressure: 20 Bar
• Maximum Working Temperature: 120°C
• Applicable Media: Water, light oil, non-corrosive gases
• Origin: Minh Hòa Investment JSC – Vietnam

Size Table (MIHA – XK)

In addition to the XK line, MIHA also offers MBV and MI lines with working pressures of 10–16 Bar and extended sizes up to DN100 (4”), suitable for standard residential and industrial applications.

Technical specifications of the MIHA Swing Check Valve

Practical Applications of MIHA Swing Check Valves

Due to its simple design, high efficiency, and durability, the MIHA swing check valve is widely used in various residential and industrial sectors:

• Residential Water Supply & Drainage Systems: Installed at the outlet of household water pumps to prevent backflow into tanks, protecting pumps and maintaining stable pipe pressure.
• Industrial Pump Stations & Water Treatment Systems: Used to control flow in booster pumps, raw water, clean water, or circulation systems.
• Oil & Gas Industry: Suitable for light oil and high-pressure environments, ideal for fuel pipelines, ensuring safe operation.
• Fire Protection Systems (PCCC): Installed in water supply branches for hydrants or sprinklers to ensure one-way flow in emergencies.
• Food & Pharmaceutical Industry: Used in technical water supply systems to maintain pipeline hygiene and prevent contamination from backflow.
• HVAC Systems (Central Air Conditioning, Chillers): Controls cold or hot water flow in heat exchange systems, stabilising operation and saving energy.

Economic Benefits of Using MIHA Swing Check Valves

Selecting a high-quality check valve ensures efficient system operation and delivers tangible economic benefits. MIHA swing check valves demonstrate a cost-effective, sustainable, and efficient solution:

• Reduce Initial Investment Costs: Locally manufactured with modern production lines, competitive pricing, and high durability, optimising procurement budgets.
• Lower Maintenance & Replacement Costs: Simple design with few moving parts reduces failure rates, extends lifespan, and decreases maintenance frequency.
• Protect System Equipment: Prevents water hammer and reduces back pressure on pumps, water meters, or terminal devices, minimising damage risk.
• Energy Savings: Maintains stable flow and reduces pressure loss in pipelines, allowing pumps to operate efficiently and save electricity.
• Optimise Production & Continuous Operation: Ensures system stability and reduces downtime due to technical errors, especially important in automated production lines or high-reliability fire protection systems.

Installation, Use, and Safety Guidelines

Installation Steps for MIHA Swing Check Valve

1. Inspect the Valve:

   • Ensure the valve is free of cracks, bends, or dents.

   • Rotate the disc to check flexibility.

2. Prepare Connections:

   • Clean the pipe threads.

   • Apply PTFE tape evenly without excessive thickness.

3. Install Valve in Flow Direction:

   • Follow the arrow on the valve body matching the system flow.

   • Hand-tighten first, then lightly tighten with a wrench.

4. Post-Installation Check:

   • Test water flow in the system.

   • Check for leaks or unusual noises.

Usage Guidelines

• Use only in compatible media: clean water, light oil, non-corrosive gases.
• Avoid strong corrosive substances, acids, or specialised chemicals without proper material treatment.
• Ensure correct installation orientation and avoid continuous vibration environments.

Safety Notes

• Before maintenance or replacement, ensure the system is depressurised.
• Avoid excessive heat or force during removal to prevent deformation or cracking.
• Periodically check valve operation, especially in high-pressure or continuous flow systems.
• For fire protection systems, schedule regular inspections to ensure readiness in emergencies.

Conclusion

The MIHA swing check valve is an optimal solution for systems requiring safe, stable, and durable one-way flow control. With a simple design, premium brass material, high-pressure tolerance, and versatile applications across many sectors, this product is trusted in thousands of projects nationwide.

For a reliable, reasonably priced, and easy-to-install valve, MIHA check valves are suitable for both residential and industrial use.

Contact Bao Tin Steel to:

• Receive competitive quotes
• Get technical valve selection advice
• Enjoy attractive bulk order discounts

Hotline/Zalo: 0932 059 176