| 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, an engineering marvel crafted for the most challenging space-constrained environments. With its ultra-compact and streamlined design, it promises unparalleled performance and adaptability across a multitude of applications. Dive into the comprehensive product details below:
1. Structural and Design Features
- Ultra-Thin Profile: Its structural length is remarkably slim, just 1/4~1/8 that of traditional flange check valves. This reduction in weight, approximately 1/4~1/20 of conventional valves, facilitates easy installation and maneuverability in confined spaces, making it an installer's dream.
- Single-Disc Swing-Type Design: Featuring a single disc with an O-ring seal and a spring-assisted closure mechanism, it guarantees a rapid response and flawless sealing. The swift closing capability dramatically reduces water hammer effects, safeguarding your systems.
- Flexible Installation: Designed for adaptability, this valve can be mounted horizontally or vertically without the need for additional supports, making it versatile for various pipeline configurations.
2. Technical Specifications
- Nominal Diameter: Ranging from DN50 to DN1000, this check valve accommodates a wide spectrum of pipeline sizes, providing flexibility for diverse projects.
- Pressure Rating: Available in PN10~PN40 (GB standard) or 150Lb~300Lb (ASME), withstanding a maximum working pressure of 4.0MPa, this valve is engineered for robust performance.
- Temperature Range:
- Hard-sealed valves: Endure temperatures up to a scorching 400°C, ensuring reliability under extreme conditions.
- Soft-sealed valves (e.g., rubber): Operate efficiently from -29°C to 250°C, with temperature limits dictated by the sealing material, offering versatility for various applications.
- Test Pressure:
- Shell test pressure: Engineered to withstand 1.5× its nominal pressure, ensuring durability and safety.
- Seal test pressure: With a testing threshold of 1.1× nominal pressure, it guarantees optimal sealing integrity.
3. Material and Sealing Performance
- Body Material: Constructed from premium stainless steel (304, 316, 316L), carbon steel (WCB), or copper, this valve offers superior corrosion resistance, catering to diverse media.
- Sealing Materials: Choose from nitrile rubber (NBR), fluororubber (FKM), EPDM, or PTFE. For more aggressive media, hard-sealed variants employ stainless steel, ideal for environments involving acids, alkalis, oils, and steam.
4. Applications
- Compatible Media: Masterfully handles water, oils, steam, acidic and alkaline fluids (such as sulfuric and hydrochloric acid), and even potent oxidizers like aqua regia, proving its versatility.
- Typical Use Cases: Perfect for urban water supply and drainage, petrochemical facilities, metallurgy, firefighting systems, power stations, and pharmaceutical industries where backflow prevention is critical.
5. Key Advantages
- Low Flow Resistance: Experience smooth flow and minimal pressure drop, which translates to lower energy consumption and increased efficiency.
- High Reliability: Its robust and compact design minimizes closing impact, ensuring a prolonged service life with minimal maintenance requirements.
- Customization Options: Various models, including H74H, H74W, and H74X, cater to different sealing needs and adhere to international standards (GB, ASME), offering tailored solutions for any requirement.
| 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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