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| Media: | Water |
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Product Overview
Discover the exceptional H76 Wafer-Type Dual Disc Check Valve, an automatic marvel expertly crafted to thwart medium backflow. Its innovative wafer-style connection seamlessly integrates into pipelines across industries such as petroleum, chemical, and power. Constructed from premium stainless steel (304, 316) or robust carbon steel (WCB), it boasts superior corrosion resistance, remarkable high-pressure endurance, and swift, reliable opening and closing action, ensuring optimum flow control in any application.
Structure and Working Principle
- Dual Disc Design: Engineered with precision, two symmetrical discs are tensioned by springs, enabling rapid closure while significantly reducing water hammer impact, safeguarding your system.
- Wafer-Style Installation: The ingeniously flangeless valve body nestles between pipeline flanges, secured by bolts-saving precious space and perfect for streamlined, compact piping configurations.
- Operation: Ingenious in function, the valve responds to forward flow by fluid pressure opening the discs; they then close instantly upon flow stoppage or reversal, courtesy of spring force and reverse pressure, safeguarding against backflow.
Key Features
- Low Water Hammer Effect: The split-disc design is a testament to superior engineering, minimizing the closing impact to protect the integrity of your pipeline system.
- Lightweight Excellence: Up to 50% lighter than conventional counterparts, facilitating effortless installation and maintenance, without compromising on performance.
- Reliable Sealing: Choose from rubber, PTFE, or metal-to-metal hard sealing for robust compatibility with water, steam, oils, and more, ensuring an impenetrable barrier.
- Versatility at Its Finest: Stainless steel excels in corrosive environments like seawater and acids, while carbon steel provides 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: Opt for the ideal material and seal type considering medium characteristics, pressure, and pipe size to ensure flawless performance.
- Installation Direction: Align the valve arrow with the flow direction; it's adaptable for both horizontal and vertical installations.
- Maintenance: Conduct routine inspections of disc springs and seal surfaces to prevent debris buildup and maintain peak operational efficiency.
The H76 Wafer-Type Dual Disc Check Valve is a paragon of compact design and rapid responsiveness, requiring minimal maintenance. It's the quintessential choice for preventing backflow in constrained spaces or systems with high-frequency operations. For optimal performance, ensure materials and sealing solutions are aligned with 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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