| Customization: | Available |
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| Media: | Water |
| Temperature: | Ordinary Temperature |
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Product Overview
Introducing the H71 Wafer Check Valve, a marvel of engineering featuring a sleek, compact wafer connection design. With its structural length being just 1/4 to 1/8 of traditional flange check valves, it's a true testament to innovative design. The valve's size and weight are significantly reduced, weighing only 1/4 to 1/20 of conventional valves, offering unparalleled efficiency. It boasts rapid closure to effectively reduce water hammer effects, ensuring smooth operation. Its low fluid resistance and versatility in horizontal and vertical pipeline applications make it a superior choice. In comparison to H41 flange check valves, the H71 type expertly addresses the bulkiness and complex installation and maintenance challenges that traditional designs often present.
Structural Features
- Fast Closure: Experience the advantage of our spring-loaded disc design, achieving ultra-short-stroke closure, which dramatically minimizes water hammer pressure even in high-flow conditions.
- Sealing Performance: Featuring a single-disc vertical movement with spring-assisted sealing, this valve guarantees zero leakage and an extended service life, providing reliability you can count on.
- Material Versatility: The valve components-ranging from the body to the disc-are available in carbon steel, stainless steel (including 304, 316, 316L), and duplex steel, ensuring adaptability to a wide spectrum of media requirements.
Application Range
- Media Compatibility: Designed for a broad spectrum of media, this valve handles water, steam, oil, nitric acid, acetic acid, strongly oxidative media, and urea with ease. The selection of materials extends its compatibility to corrosive environments, making it a versatile choice.
- Operating Parameters:
- Pressure Rating: Engineered for robust performance, it accommodates pressures from PN10 to PN420 (Class150 to Class2500).
- Size Range: Available in a comprehensive size range from DN15 to DN600.
- Temperature Range: Capable of withstanding extreme conditions, the valve operates efficiently from -196°C to 540°C.
- Industry Applications: Its design makes it ideal for diverse industries such as petrochemical, power generation, metallurgy, food processing, environmental protection, and municipal pipeline systems.
Technical Standards
- Design & Manufacturing: Built to meet and exceed standards such as JB/T 8937 and API 594, ensuring top-notch quality and reliability.
- Flange Connections: Supports a range of international standards including GB/T 9113 and ASME B16.5, ensuring seamless integration into various systems.
- Testing & Certification: Meets rigorous API 598 and GB/T 13927 test protocols. Select manufacturers also possess ISO 9001 and API 6D certifications, underscoring our commitment to quality.
Installation & Maintenance
- Flow Direction: For optimal performance, ensure the medium flow aligns with the body arrow markings. It is versatile for both horizontal and vertical mounting.
- Support Requirements: Large valves require independent supports to avoid pipeline stress, ensuring the sealing integrity remains uncompromised.
Performance Parameters
- Flow Resistance Coefficient: This coefficient decreases as the diameter increases, enhancing flow efficiency (e.g., DN50: 2.6; DN1200: 0.7).
- Flow Capacity: With a DN100 valve demonstrating a Kv of 289 m³/h (Cv=338 as per US standards), it showcases impressive throughput efficiency.
Material Configuration
- Standard Options:
- Body: Crafted from high-quality WCB and 304/316 stainless steel.
- Disc & Spring: Employing durable stainless steel or alloy steel for robustness.
- Sealing Surface: Available with a reliable rubber or hard-faced alloy overlay for maximum sealing performance.
The H71 Wafer Check Valve is engineered for exceptional efficiency, reliability, and adaptability in industrial pipeline systems. When selecting the valve, consider the properties of media, pressure/temperature conditions, and installation environment. For project-specific specifications, consult manufacturer datasheets or technical services to ensure optimal performance and compatibility.
| 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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