| Customization: | Available |
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| Media: | Water |
| Temperature: | Ordinary Temperature |
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Introducing the H74 stainless steel wafer-type single-disc check valve: a marvel of engineering crafted for space-challenged environments. This ultra-compact valve boasts a cutting-edge structure, ensuring consistent performance across a multitude of applications. Explore the detailed product description below to discover its outstanding features.
1. Structural and Design Features
- Ultra-Thin Profile: This innovative valve has a structural length that is merely 1/4 to 1/8 of traditional flange check valves. Its lightweight design, approximately 1/4 to 1/20 of conventional alternatives, ensures effortless installation and maneuverability in confined areas.
- Single-Disc Swing-Type Design: Featuring an integrated disc with an O-ring seal and a spring-assisted closure mechanism, this design ensures rapid response, superior sealing, and swift closure to effectively reduce water hammer effects.
- Flexible Installation: Engineered for versatility, it can be mounted horizontally or vertically without the need for additional support, accommodating a wide array of pipeline configurations.
2. Technical Specifications
- Nominal Diameter: DN50 to DN1000, encompassing an extensive range of pipeline sizes to suit diverse requirements.
- Pressure Rating: Offering resilience with a PN10 to PN40 (GB standard) or 150Lb to 300Lb (ASME) rating, supporting a maximum working pressure of 4.0MPa.
- Temperature Range:
- Hard-sealed valves: Operate efficiently up to 400°C, showcasing exceptional durability.
- Soft-sealed valves (e.g., rubber): Designed for temperatures ranging from -29°C to 250°C, varying by sealing material.
- Test Pressure:
- Shell test pressure: Rigorously tested at 1.5 times the nominal pressure to ensure sturdiness.
- Seal test pressure: Validated at 1.1 times the nominal pressure, confirming optimal sealing performance.
3. Material and Sealing Performance
- Body Material: Constructed from premium stainless steel (304, 316, 316L), carbon steel (WCB), or copper, ensuring robust corrosion resistance for various media.
- Sealing Materials: Features nitrile rubber (NBR), fluororubber (FKM), EPDM, or PTFE options. Hard-sealed variants employ stainless steel, ideal for challenging media like acids, alkalis, oils, and steam.
4. Applications
- Compatible Media: Engineered to handle water, oils, steam, acidic/alkaline fluids (such as sulfuric acid, hydrochloric acid), and strong oxidizers like aqua regia.
- Typical Use Cases: Perfectly suited for urban water supply and drainage, petrochemical facilities, metallurgy, firefighting systems, power stations, and pharmaceutical sectors requiring reliable backflow prevention.
5. Key Advantages
- Low Flow Resistance: Its smooth flow passage minimizes pressure drop during valve operation, significantly reducing energy consumption and enhancing efficiency.
- High Reliability: The robust compact design ensures minimal closing impact, delivering a long service life with low maintenance needs.
- Customization Options: Available in multiple models such as H74H, H74W, and H74X, meeting various sealing demands and adhering to international 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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