| Customization: | Available |
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| Media: | Water |
| Temperature: | Ordinary Temperature |
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Product Overview
Discover the cutting-edge H76 Wafer-Type Dual Disc Check Valve, an automatic marvel crafted to safeguard your systems against medium backflow. Featuring a space-saving wafer-style connection, this valve is the top choice for pipeline systems across industries like petroleum, chemical, power, and water infrastructure. Constructed in robust stainless steel (grades 304, 316) or durable carbon steel (WCB), it excels in corrosion resistance and high-pressure environments, ensuring swift and secure opening and closing operations.
Structure and Working Principle
- Innovative Dual Disc Design: Engineered with two symmetrical discs, pre-tensioned by springs, ensuring rapid closure to minimize the disruptive impact of water hammer.
- Efficient Wafer-Style Installation: The flangeless valve body is seamlessly clamped between pipeline flanges via bolts, optimizing space and perfect for compact piping configurations.
- Seamless Operation: As forward flow activates, fluid pressure naturally opens the discs. With flow cessation or reversal, the discs promptly close under spring force, reinforced by reverse pressure, effectively blocking backflow.
Key Features
- Minimal Water Hammer Impact: Ingenious split-disc design significantly reduces closure impact, preserving the integrity and longevity of the pipeline.
- Ultra-Lightweight: Remarkably 30%~50% lighter than traditional check valves, facilitating effortless installation and streamlined maintenance.
- Exceptional Sealing: Flexible seal faces incorporate rubber, PTFE, or robust metal-to-metal hard sealing, ensuring compatibility with a wide range of media including water, steam, and oils.
- Unmatched Versatility: Stainless steel thrives in corrosive environments like seawater and acids, while carbon steel offers economical solutions for standard conditions.
Applications
- Essential in municipal water supply and drainage systems, ensuring efficient and reliable performance.
- Integral to petrochemical pipelines, providing steadfast protection against backflow.
- Vital for thermal power plant cooling systems, safeguarding smooth water circulation.
- Ideal for HVAC systems, enhancing operational efficiency and safety.
- Perfect for marine and offshore platforms, delivering robust, reliable backflow prevention.
Selection and Installation Guidelines
- Selection Criteria: Carefully select material and seal type based on the medium's corrosivity, temperature, pressure, and pipe dimensions to ensure optimal performance.
- Installation Direction: Ensure valve arrow alignment with flow direction; adaptable for both horizontal and vertical installations.
- Maintenance: Conduct regular inspections of disc springs and seal surfaces to prevent debris buildup and ensure seamless operation.
The H76 Wafer-Type Dual Disc Check Valve distinguishes itself with a compact design, lightning-fast response, and minimal maintenance, rendering it the quintessential solution for backflow prevention in tight, high-frequency environments. For peak performance, tailor materials and sealing solutions to your specific operational needs.
| 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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