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China Suppliers Factory Flange Rubber Disc Soft Seal Swing Check Valve - H44X-10/16, PN6/10/16, DN40-DN300
| Valve Type: | Swing check valve | Structure: | Rubber flap type |
| Standard: | DIN F6 | Workmanship: | Investment casting |
| Sealing direction: | Single-directional | Sealing grade: | Zero leakage |
| Temperature: | -20°C<T<120°C | Operation: | Self-starting |
Characteristics
Boasting a ductile iron body and an elastic rubber flap core, this automatic check valve valve operates without any external drives. It leverages forward medium thrust to open the rubber flap for smooth circulation, and relies on reverse medium pressure paired with the flap’s elastic reset force to deliver leak-proof sealing. The valve’s standout design merges the exceptional structural strength of ductile iron with the unrivaled flexible sealing advantages of rubber flaps, ensuring optimal performance in diverse low-pressure applications.
Advantages
1. Flexible seal, excellent leak proof performance
The valve disc is made of elastic rubber material and is in surface contact with the valve seat for sealing. It can automatically compensate for minor wear and deformation of the sealing surface and achieve a tight fit even under low pressure conditions, effectively avoiding medium leakage. Compared to metal hard sealed check valves, they have stronger adaptability to medium pressure fluctuations, especially suitable for pipeline systems with non particle or small particle media such as clean water and sewage.
2. Simple structure, low failure rate
Without vulnerable moving parts such as hinges, springs, and shafts, traditional check valves avoid the problem of opening and closing failure caused by component rust, jamming, and fatigue fracture at the root. The rubber valve disc is wear-resistant, anti-aging, and has a long service life, greatly reducing the maintenance frequency and replacement cost of the valve.
3. Easy installation and strong adaptability
The valve body is mostly made of ductile iron material, which is lightweight and has high strength. The flange connection method can be directly connected to the pipeline without complex calibration; Supports various installation methods such as horizontal and vertical (bottom-up), suitable for diverse scenarios such as urban water supply and drainage, sewage treatment plants, high-rise buildings, and agricultural irrigation.
Packing
Standard export wooden case packaging
Application Scenarios
This valve finds extensive application across diverse sectors including urban water supply and drainage networks, sewage treatment facilities, fire protection systems, HVAC installations, water treatment plants and farmland irrigation systems. It demonstrates superior suitability for low-pressure, high-flow pipeline systems where the conveyed medium contains trace amounts of impurities, and is recognized as a standard anti-backflow solution for civil construction and municipal engineering applications.
Frequently Asked Questions
What are the primary applications for this rubber flap swing check valve?
This valve is widely used in municipal water supply and drainage networks, sewage treatment plants, HVAC installations, fire protection systems, and agricultural irrigation. It is highly suitable for low-pressure systems with non-particle or small-particle media.
How does the valve achieve zero leakage?
The valve features an elastic rubber flap core that forms a flexible surface contact seal against the valve seat. It relies on the medium's reverse pressure combined with the flap's natural elastic reset force to ensure a tight, leak-proof seal even in low-pressure conditions.
Can this check valve be installed vertically?
Yes, this swing check valve supports multiple installation configurations, including horizontal and vertical (bottom-to-top flow direction) alignments, allowing for versatile piping layouts.
What is the working temperature range for this DIN F6 valve?
The operating temperature range is designed to withstand temperatures between -20°C and 120°C, making it stable under various environmental and medium conditions within this range.
Why is the failure rate of this valve lower than traditional metal-seated check valves?
By eliminating complex moving mechanical parts like hinges, springs, and shafts, the design avoids common issues such as component rust, jamming, and fatigue fracture. The durable rubber disc is wear-resistant and anti-aging, resulting in minimal maintenance requirements.