| Customization: | Available |
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| Media: | Water |
| Temperature: | Ordinary Temperature |
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The H74 stainless steel wafer-type single-disc check valve is a marvel of engineering, crafted for ultimate compatibility with space-restricted installations. Its sleek, streamlined architecture guarantees steadfast performance across a myriad of applications. Discover the comprehensive product details below:
1. Structural and Design Features
- Ultra-Thin Profile: Revolutionarily slim, boasting a structural length merely 1/4 to 1/8 that of conventional flange check valves. Its impressively lightweight design, ranging from 1/4 to 1/20 of traditional models, ensures effortless installation and maneuverability in the most confined spaces.
- Single-Disc Swing-Type Design: Elegantly engineered with a single disc complemented by an O-ring seal and a spring-assisted closure. This design guarantees swift responsiveness, impeccable sealing, and rapid closure, thereby significantly reducing the risk of water hammer effects.
- Flexible Installation: Exceptionally adaptable, it accommodates both horizontal and vertical orientations without the need for additional support, seamlessly integrating into diverse pipeline configurations.
2. Technical Specifications
- Nominal Diameter: Catering to an extensive array of pipeline sizes with DN50 to DN1000 options.
- Pressure Rating: Offering versatility with PN10 to PN40 (GB standard) or 150Lb to 300Lb (ASME), capable of withstanding a maximum working pressure of up to 4.0MPa.
- Temperature Range:
- Hard-sealed valves: Endure temperatures soaring up to 400°C with steadfast resilience.
- Soft-sealed valves (e.g., rubber): Versatile across temperatures from -29°C to 250°C, tailored according to sealing material.
- Test Pressure:
- Shell test pressure: Rigorously tested at 1.5 times the nominal pressure for unmatched reliability.
- Seal test pressure: Ensures absolute integrity at 1.1 times the nominal pressure.
3. Material and Sealing Performance
- Body Material: Choose from stainless steel (304, 316, 316L), carbon steel (WCB), or copper, each offering superior corrosion resistance for a wide spectrum of media.
- Sealing Materials: Options include nitrile rubber (NBR), fluororubber (FKM), EPDM, or PTFE. For robust demands, hard-sealed variants in stainless steel handle aggressive media such as acids, alkalis, oils, and steam with ease.
4. Applications
- Compatible Media: Efficiently manages water, oils, steam, and acidic/alkaline fluids (like sulfuric acid, hydrochloric acid), as well as potent oxidizers such as aqua regia.
- Typical Use Cases: Ideally suited for urban water supply and drainage, petrochemical facilities, metallurgy, firefighting systems, power plants, and pharmaceutical sectors where backflow prevention is critical.
5. Key Advantages
- Low Flow Resistance: The smooth flow passage is ingeniously designed to minimize pressure drop upon valve opening, fostering reduced energy consumption.
- High Reliability: Its robust, compact configuration mitigates closing impact, ensuring enduring service life and minimal maintenance needs.
- Customization Options: A variety of models (e.g., H74H, H74W, H74X) are available to meet specific sealing requirements and adhere to global standards (GB, ASME).
| Working pressure | PN16~PN40 OR 150LB~300LB |
| Suitable medium | Water, gas, air and some corrosive liquid |
| Investment | Casting body and cap |
| Delivery time | Usual 15 days |
| Shipping port | NingBo,YiWu |
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