| Customization: | Available |
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| Media: | Water |
| Temperature: | Ordinary Temperature |
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Product Overview
Introducing the H71 Wafer Check Valve, engineered with a sleek and compact wafer connection design, reducing its structural length to a mere 1/4 to 1/8 compared to traditional flange check valves. This innovative design significantly decreases both its size and weight, making it a lightweight choice at merely 1/4 to 1/20 of the weight of conventional valves. Experience the benefits of rapid closure that effectively mitigates water hammer effects, combined with low fluid resistance, enhancing its suitability for both horizontal and vertical pipeline applications. Unlike the bulky H41 flange check valves, the H71 type proficiently eliminates the installation and maintenance challenges associated with traditional valve designs.
Structural Features
- Fast Closure: Designed with a spring-loaded disc that ensures quick, short-stroke closure, significantly reducing water hammer pressure even in high-flow conditions.
- Sealing Performance: Achieve zero leakage with a single-disc vertical movement enhanced by spring-assisted sealing, ensuring a longer service life.
- Material Versatility: Tailor the valve for diverse media requirements with options in carbon steel, stainless steel (304/316/316L), duplex steel, and more.
Application Range
- Media Compatibility: Perfectly suited for water, steam, oil, nitric acid, acetic acid, strongly oxidative media, and urea. Extend material selection to maintain compatibility in corrosive environments.
- Operating Parameters:
- Pressure Rating: Ranges from PN10 to PN420 (Class150 to Class2500), ensuring resilience under various pressure conditions.
- Size Range: Versatile sizes from DN15 to DN600 to meet diverse application needs.
- Temperature Range: Operates efficiently from -196°C to 540°C, supporting a wide array of thermal demands.
- Industry Applications: Widely implemented across industries such as petrochemical, power generation, metallurgy, food processing, environmental protection, and municipal pipeline systems for unparalleled performance.
Technical Standards
- Design & Manufacturing: Strict adherence to JB/T 8937, API 594, and other international standards for superior quality assurance.
- Flange Connections: Compatible with GB/T 9113, ASME B16.5, and multiple international standards.
- Testing & Certification: Fully meets API 598, GB/T 13927 test protocols, with select manufacturers boasting ISO 9001, API 6D, and additional quality certifications.
Installation & Maintenance
- Flow Direction: Ensure smooth installation by aligning medium flow with body arrow markings, suitable for both horizontal and vertical mounting.
- Support Requirements: Large valves necessitate independent supports to avert pipeline stress and maintain optimal sealing integrity.
Performance Parameters
- Flow Resistance Coefficient: Experience reduced resistance with increasing diameters, exemplified by DN50 at 2.6 and DN1200 at 0.7.
- Flow Capacity: The DN100 valve showcases a high throughput efficiency with Kv=289 m³/h (Cv=338 per US standards).
Material Configuration
- Standard Options:
- Body: Constructed from WCB, 304/316 stainless steel for robust and reliable performance.
- Disc & Spring: Crafted from durable stainless steel/alloy steel to ensure longevity and endurance.
- Sealing Surface: Available in rubber or hard-faced alloy overlay for superior sealing quality.
The H71 Wafer Check Valve stands out with its impressive efficiency, reliability, and adaptability, tailored for industrial pipeline systems. Final selection should be made after considering media properties, pressure/temperature conditions, and installation environment. For project-specific specifications, consult manufacturer datasheets or engage with our technical services.
| 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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