The ZHMIS-A1 Swing Type Check Valve is a high-performance non-return valve engineered to prevent backflow within industrial piping systems. Utilizing an automatic opening and closing flap mechanism, this valve responds instantly to the flow and strength of the medium, ensuring a secure one-way passage and protecting critical upstream equipment from reverse flow accidents.
Designed for versatility and durability, these flanged end check valves are primarily recommended for horizontal installation. Whether managing water, steam, oil, or highly corrosive media such as nitric and acetic acid, the ZHMIS-A1 provides a reliable sealing solution that minimizes downtime and enhances overall system safety in demanding industrial environments.
| Material Options | CI / DI / WCB / Stainless Steel (SS) | Pressure Ratings | Class 125/150 (MSS SP) / PN10/PN16 (DIN 3202) |
|---|---|---|---|
| Connection Type | Flanged End | Face-to-Face Std | MSS-SP-85 |
| Standard Compliance | ANSI CLASS 125/150 | Installation Mode | Primarily Horizontal Piping |
| Compatible Media | Water, Steam, Oil, Nitric Acid, Acetic Acid, Urea | Size Range | 2" to 16" Diameter |
| Operation Type | Automatic Flow-Actuated | Warranty Period | Generally One Year |
Effectively eliminates reverse flow to prevent pipeline accidents and protect pumps.
Self-actuating flap opens and closes based on medium flow and pressure strength.
Available in Carbon Steel and Stainless Steel to suit various chemical environments.
Suitable for aggressive media including strong oxidizing agents and acids.
Strict adherence to MSS-SP and DIN standards for seamless system integration.
Flanged design allows for rapid installation and straightforward inspection.
Rigorous pressure testing and material certification for every valve batch.
Full adherence to ANSI, MSS-SP, and DIN international standards.
Optimized stock levels for 2" to 16" sizes to ensure rapid delivery.
Global shipping management with real-time tracking for industrial orders.
Strategic procurement of high-grade WCB and Stainless Steel materials.
Comprehensive one-year warranty and technical installation guidance.
| Feature | ZHMIS-A1 Swing Check | Standard Lift Check |
|---|---|---|
| Media Range | Water, Oil, Acids, Steam | Limited Media Range |
| Flow Resistance | Low Pressure Drop | Higher Resistance |
| Installation | Optimized for Horizontal | Vertical/Horizontal |
| Maintenance | Longer Service Life | More Frequent Wear |
| Cost Efficiency | High ROI for Aggressive Media | Standard Industrial ROI |
Swing check valves rely on a swinging flap that opens with flow and closes by gravity or backflow, offering lower resistance. Lift check valves use a piston-like disc that lifts vertically, typically creating more pressure drop but suitable for different orientations.
Yes, the swing check valve is specifically designed to be compatible with various media, including nitric acid, acetic acid, and strong oxidizing media, especially when ordered in Stainless Steel grades.
The main differences lie in pressure ratings and flange standards: MSS SP typically follows Class 125/150 ratings and is bolted to American standard piping, while DIN 3202 follows PN10/PN16 ratings.
For optimal performance and reliable closing of the flap, these valves should generally be installed in horizontal piping systems.
Our valves are available in Cast Iron (CI), Ductile Iron (DI), Carbon Steel (WCB), and various grades of Stainless Steel (SS) to meet specific pressure and corrosion requirements.
Generally, our industrial check valves come with a warranty period of one year under normal operating conditions.
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