| 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: an innovative automatic valve engineered to effectively prevent medium backflow. With its advanced wafer-style connection, this valve is an industry favorite for a diverse range of pipeline systems, including petroleum, chemical, power, water supply, and drainage applications. Crafted with precision, the valve body comes in two robust materials: stainless steel (e.g., 304, 316) known for its exceptional corrosion resistance, and carbon steel (WCB), chosen for its high-pressure tolerance. Furthermore, its design ensures swift and reliable opening and closing performance.
Structure and Working Principle
- Dual Disc Design: Featuring two perfectly symmetrical discs pre-tensioned by springs, this design ensures rapid closure, significantly reducing the impact of water hammer and protecting your systems.
- Wafer-Style Installation: This innovative flangeless valve body fits seamlessly between pipeline flanges using bolts, saving valuable space and making it the perfect choice for compact piping designs.
- Operation: During forward flow, fluid pressure effortlessly opens the discs. When the flow stops or reverses, the discs snap shut immediately under the combined force of springs and reverse pressure, effectively blocking any backflow.
Key Features
- Low Water Hammer Effect: The unique split-disc design minimizes the closing impact, safeguarding the integrity of your pipeline systems.
- Lightweight: At 30% to 50% lighter than traditional check valves, this valve is exceptionally easy to install and maintain, offering unparalleled convenience.
- Reliable Sealing: Featuring seal faces crafted from rubber, PTFE, or metal-to-metal hard sealing, this valve is versatile and compatible with a wide array of mediums including water, steam, and oils.
- Versatility: Stainless steel provides outstanding performance in corrosive environments like seawater and acids. Meanwhile, carbon steel is 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: Choose the ideal material and seal type based on the medium's corrosivity, temperature, pressure conditions, and pipe size for optimal performance.
- Installation Direction: Ensure that the valve arrow aligns perfectly with the flow direction. Suitable for both horizontal and vertical mounting, offering flexible installation options.
- Maintenance: Perform regular inspections of disc springs and seal surfaces to prevent debris accumulation and ensure long-lasting, reliable operation.
The H76 Wafer-Type Dual Disc Check Valve excels with its compact design, swift response, and minimal maintenance needs, making it the go-to choice for backflow prevention in space-limited or high-frequency systems. For peak performance, ensure materials and sealing solutions are tailored to 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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