ANTI-POLLUTION ISOLATING VALVE
Product Model:HS4IX
Nominal Diameter:50-600mm
Nominal Pressure:1.0~2.5MPa
suitable temperature:0°C-80°C
suitable Medium: Water

ANTI-POLLUTION ISOLATING VALVE
Product Model: HS4IX
Product Overview
The HS4IX Anti-Pollution Isolating Valve is designed to prevent backflow and ensure the safety and sanitation of drinking water systems. It is a critical component in various pipeline systems, providing a reliable barrier against contamination. The valve is widely used in high-rise building water supply systems, fire protection systems, HVAC systems, and municipal water pipelines to protect against the of impure water.
Key Features
- Backflow Prevention
- Dual Check Valves: Two independent check valves ensure secure closure and prevent backflow, even if one seal fails.
- Drainage Mechanism: Intermediate drainage ensures no residual water remains, further preventing contamination.
- Compact and Efficient Design
- Streamlined Body: Reduces pressure drop and energy loss.
- Lightweight and Durable: Easy to install and maintain, with a long service life.
- High-Quality Materials
- Corrosion-Resistant: Constructed from materials like stainless steel and bronze for durability in various water conditions.
- Reliable Sealing: Ensures tight closure and prevents leakage.
- Versatile Applications
- Suitable for water supply, fire protection, HVAC, and municipal pipeline systems.
- Effective in preventing contamination in critical applications.
Technical Specifications
Parameter |
Details |
Nominal Diameter |
50-600 mm |
Nominal Pressure |
1.0-2.5 MPa |
Operating Temp. |
0°C-80°C |
Media Compatibility |
Water |
Connection |
Flanged (GB/T17241 standard) or threaded |
Quality Standards & Certifications
- Design & Manufacturing: Complies with GB/T13927, API598.
- Materials: Meets GB/T17241.6, GB/T9113 for flange standards.
- Certifications: ISO 9001, CE (industry standards for quality and safety).
Typical Applications
- High-Rise Building Water Supply Systems
- Prevents backflow in residential and commercial water pipelines.
- Fire Protection Systems
- Ensures safe and reliable operation in fire suppression systems.
- HVAC Systems
- Maintains proper airflow and prevents contamination in heating and cooling systems.
- Municipal Water Pipelines
- Protects against cross-contamination in water distribution networks.
Why Choose HS4IX Anti-Pollution Isolating Valves?
- Safety: Effective backflow prevention ensures system integrity.
- Efficiency: Low resistance design minimizes energy loss.
- Durability: High-quality materials ensure long service life.







