| Customization: | Available |
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| Media: | Water |
| Temperature: | Ordinary Temperature |
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Product Overview
Introducing the H76 Wafer-Type Dual Disc Check Valve, a pinnacle of engineering excellence designed to ensure the seamless prevention of medium backflow. Its wafer-style connection is a testament to its versatility, making it indispensable across pipeline systems in petroleum, chemical, power, water supply, and drainage sectors. Crafted with precision, the valve's body boasts materials like stainless steel (e.g., 304, 316) or carbon steel (WCB), known for their exemplary corrosion resistance, remarkable high-pressure tolerance, and swift opening/closing capabilities.
Structure and Working Principle
- Dual Disc Design: Ingeniously designed with two symmetrical discs, pre-tensioned by springs, it ensures a quick closure, substantially reducing water hammer impact.
- Wafer-Style Installation: The ingeniously flangeless valve body nestles securely between pipeline flanges using bolts, optimizing space and perfectly suited for compact piping layouts.
- Operation: In the event of forward flow, the fluid pressure elegantly opens the discs; conversely, upon flow cessation or reversal, the discs snap shut instantly under the combined forces of spring and reverse pressure to effectively block backflow.
Key Features
- Low Water Hammer Effect: The split-disc design ingeniously minimizes closing impact, safeguarding the pipeline's structural integrity.
- Lightweight: Astonishingly 30%~50% lighter than conventional check valves, facilitating effortless installation and maintenance.
- Reliable Sealing: Choose from rubber, PTFE, or robust metal-to-metal hard sealing, ensuring compatibility with a wide range of mediums such as water, steam, oils, and beyond.
- Versatility: Stainless steel is the material of choice for corrosive environments (e.g., seawater, acids), while carbon steel offers a cost-effective solution for standard conditions.
Applications
- Municipal water supply and drainage systems
- Petrochemical pipelines
- Thermal power plant cooling water circulation
- HVAC systems
- Marine and offshore platforms
Selection and Installation Guidelines
- Selection Criteria: Ensure optimal performance by selecting material and seal type based on the medium's corrosivity, temperature, pressure, and pipe size.
- Installation Direction: Align the valve's arrow with the flow direction; adaptable for both horizontal or vertical mounting.
- Maintenance: Perform regular inspections of disc springs and seal surfaces to prevent debris accumulation and maintain peak functionality.
The H76 Wafer-Type Dual Disc Check Valve is distinguished by its compact design, rapid responsiveness, and minimal maintenance requirements. It is the perfect solution for backflow prevention in space-restricted or high-frequency systems. For optimal performance, ensure that materials and sealing solutions are precisely matched to the specific operating conditions.
| Pressure Rating | PN10~PN40 (or Class 150~300) |
| Nominal Diameter | DN50~DN600 (2"~24") |
| Temperature Range: | Stainless Steel: -29ºC~200ºC (rubber seal) / 425ºC (metal seal) |
| Carbon Steel: -29ºC~425ºC | |
| Connection Standards | GB, ANSI, DIN, JIS wafer flange dimensions. |
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