| Customization: | Available |
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| Media: | Water |
| Temperature: | Ordinary Temperature |
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Discover the unparalleled H74 stainless steel wafer-type single-disc check valve, a marvel of engineering that offers an ultra-compact design, perfect for installations where space is at a premium. This valve boasts a streamlined architecture, unmatched reliability, and vast versatility, making it a must-have for a myriad of applications. Explore the detailed description to unlock the full potential of this exceptional product:
1. Structural and Design Features
- Ultra-Thin Profile: Experience the innovation of a structure only 1/4 to 1/8 the length of traditional flange check valves. This lightweight design, approximately 1/4 to 1/20 the weight of conventional options, ensures effortless installation and maneuverability, even in the most confined spaces.
- Single-Disc Swing-Type Design: Featuring a single disc with an integrated O-ring seal and a spring-assisted closure, this design guarantees rapid responsiveness, superior sealing capabilities, and swift closure, effectively mitigating water hammer impacts.
- Flexible Installation: Whether positioned horizontally or vertically, this valve requires no additional supports, seamlessly adapting to various pipeline configurations.
2. Technical Specifications
- Nominal Diameter: DN50~DN1000, catering to an extensive spectrum of pipeline dimensions.
- Pressure Rating: PN10~PN40 (GB standard) or 150Lb~300Lb (ASME), capable of withstanding a maximum working pressure of 4.0MPa.
- Temperature Range:
- Hard-sealed valves: Withstanding temperatures up to an impressive 400°C.
- Soft-sealed valves (e.g., rubber): Suitable for conditions ranging from -29°C to 250°C, depending on the sealing material of choice.
- Test Pressure:
- Shell test pressure: Crafted to endure 1.5 times the nominal pressure.
- Seal test pressure: Meticulously tested to handle 1.1 times the nominal pressure.
3. Material and Sealing Performance
- Body Material: Available in stainless steel (304, 316, 316L), carbon steel (WCB), or copper, this valve assures exceptional corrosion resistance for a wide range of media.
- Sealing Materials: Choose from nitrile rubber (NBR), fluororubber (FKM), EPDM, or PTFE. For hard-sealed variants, stainless steel is utilized, ideal for handling aggressive media such as acids, alkalis, oils, and steam.
4. Applications
- Compatible Media: Efficiently manage water, oils, steam, acidic/alkaline fluids like sulfuric and hydrochloric acid, and even strong oxidizers such as aqua regia.
- Typical Use Cases: Perfect for urban water supply and drainage, petrochemical facilities, metallurgy, firefighting systems, power stations, and pharmaceutical sectors demanding reliable backflow prevention.
5. Key Advantages
- Low Flow Resistance: The smooth flow passage design minimizes pressure drop during valve operation, leading to significant energy savings.
- High Reliability: Its robust, compact design reduces closing impact, promising extended service life and low maintenance needs.
- Customization Options: With multiple models such as H74H, H74W, and H74X, this valve meets diverse sealing requirements and aligns with 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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