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| Media: | Water |
| Temperature: | Ordinary Temperature |
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Product Overview
Discover the H71 Wafer Check Valve, a marvel of engineering with its compact wafer connection design. It revolutionizes the industry with a structural length that's just a fraction (1/4 to 1/8) of traditional flange check valves, leading to a significant reduction in both size and weight (a mere 1/4 to 1/20 of conventional valves). Experience unparalleled advantages with its rapid closure mechanism that effectively minimizes water hammer effects, ensuring your system's safety and integrity. The valve's low fluid resistance and versatility make it suitable for horizontal and vertical pipelines. Unlike the bulky and maintenance-heavy H41 flange check valves, the H71 offers a solution that is both easier to install and maintain, redefining efficiency in your system.
Structural Features
- Fast Closure: Experience the efficiency of a spring-loaded disc that achieves a swift short-stroke closure, significantly diminishing water hammer pressure, especially in high-flow scenarios.
- Sealing Performance: Enjoy the reliability of a single-disc vertical movement with spring-assisted sealing, guaranteeing zero leakage and an extended service life for peace of mind.
- Material Versatility: Select from a diverse range of materials including carbon steel, stainless steel (304/316/316L), and duplex steel. This flexibility ensures adaptability to meet various media requirements, providing optimal performance across different environments.
Application Range
- Media Compatibility: This versatile valve is designed to handle water, steam, oil, nitric acid, acetic acid, strongly oxidative media, and urea. It extends its compatibility to corrosive environments with careful material selection.
- Operating Parameters:
- Pressure Rating: Operates within a wide pressure range of PN10-PN420 (Class150-Class2500), ensuring suitability for various applications.
- Size Range: Available in sizes from DN15-DN600, accommodating a broad spectrum of pipeline needs.
- Temperature Range: Withstands extreme temperatures from -196°C to 540°C, making it ideal for diverse operational environments.
- Industry Applications: The valve is indispensable across sectors such as petrochemical, power generation, metallurgy, food processing, environmental protection, and municipal pipeline systems, demonstrating its widespread utility.
Technical Standards
- Design & Manufacturing: Adheres to rigorous standards such as JB/T 8937, API 594, ensuring quality and reliability in every valve.
- Flange Connections: Compatible with international standards like GB/T 9113, ASME B16.5, facilitating seamless integration into existing systems.
- Testing & Certification: Conforms to API 598, GB/T 13927 protocols. Select manufacturers boast ISO 9001, API 6D certifications, ensuring the highest quality assurance.
Installation & Maintenance
- Flow Direction: Ensure optimal performance by aligning the medium flow with body arrow markings; the valve is designed for both horizontal and vertical mounting.
- Support Requirements: For large valves, independent supports are crucial to prevent pipeline stress and preserve sealing integrity, ensuring operational excellence.
Performance Parameters
- Flow Resistance Coefficient: Efficiency is enhanced as the flow resistance coefficient decreases with increasing diameter, e.g., DN50: 2.6 to DN1200: 0.7.
- Flow Capacity: The DN100 valve boasts a remarkable Kv=289 m³/h (Cv=338 per US standards), exemplifying its high throughput efficiency and capacity.
Material Configuration
- Standard Options:
- Body: Choose from robust materials like WCB, 304/316 stainless steel for durability and longevity.
- Disc & Spring: Crafted from stainless steel/alloy steel for optimal performance and corrosion resistance.
- Sealing Surface: Options include rubber or hard-faced alloy overlay for a secure and durable seal.
The H71 Wafer Check Valve is the epitome of efficiency, reliability, and adaptability for industrial pipeline systems. When selecting this valve, it's essential to consider the specific media properties, pressure/temperature conditions, and installation environment. For tailored specifications, consult manufacturer datasheets or reach out to technical services to ensure your project's success.
| 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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