| 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 solution crafted to prevent the unwelcome backflow of mediums. Thanks to its sophisticated wafer-style connection, this valve proves indispensable across a spectrum of pipeline systems, including petroleum, chemical, power, and both water supply and drainage applications. Choose from robust stainless steel options like 304 or 316, or opt for the resilient carbon steel (WCB), each offering unparalleled corrosion resistance, exceptional high-pressure tolerance, and swift, efficient opening and closing performance.
Structure and Working Principle
- Dual Disc Design: Ingeniously engineered with two symmetrical discs, pre-tensioned by springs to facilitate rapid closure, effectively minimizing the impact of water hammer and safeguarding system integrity.
- Wafer-Style Installation: This flangeless valve body design allows for seamless clamping between pipeline flanges via bolts, making it a space-saving marvel perfect for compact piping configurations.
- Operation: In forward flow scenarios, the fluid pressure gracefully opens the discs. Should the flow cease or reverse, these discs spring into action, closing instantly under the combined force of springs and reverse pressure, effectively blocking any potential backflow.
Key Features
- Low Water Hammer Effect: The split-disc design significantly reduces closing impact, ensuring the continued integrity of the pipeline.
- Lightweight: Boasting a reduction of 30%~50% in weight compared to traditional check valves, this product guarantees easy installation and convenient maintenance.
- Reliable Sealing: Our seal faces utilize premium materials such as rubber, PTFE, or metal-to-metal hard sealing, ensuring compatibility with a wide array of mediums, including water, steam, and oils.
- Versatility: Stainless steel is ideal for 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: Choose the ideal material and seal type by considering the medium's corrosivity, temperature, pressure, and pipe size to ensure flawless performance.
- Installation Direction: Ensure that the valve arrow is aligned with the flow direction; suitable for both horizontal and vertical mounting to meet diverse installation requirements.
- Maintenance: Regular inspections of disc springs and seal surfaces are recommended to maintain optimal functionality, while preventing debris accumulation is crucial for longevity.
The H76 Wafer-Type Dual Disc Check Valve is distinguished by its compact design, rapid responsiveness, and low maintenance requirements. It emerges as the go-to solution for preventing backflow in space-constrained or high-frequency systems. For peak performance, it's essential to align materials and sealing solutions with the specific operating conditions at hand.
| 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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