The KARFAR HBH47H Butterfly Slow Shut Check Valve is a newly designed flanged check valve featuring a triple offset structure, metal-to-metal sealing, and an integrated buffer damper. It is widely used in industrial applications such as oil, chemical, food, pharmaceutical, textile, paper, water supply, and power generation. This one-way valve effectively prevents backflow and minimizes destructive pressure surges caused by sudden flow changes.
**Model No.:** HBH47H
**Flow Direction:** Unidirectional
**Standards:** ANSI, API, DIN, BS, GB, and others
**Application:** Industrial use, water treatment systems
**Mediums Applicable:** Fresh water, sewage, seawater, air, gas, and acids
**Trademark:** KARFAR
**Packaging:** Bubble plastic paper + wooden case
**Size Range:** DN300 to DN1800
**Origin:** China
This advanced butterfly check valve is ideal for systems where controlled flow and reduced pressure fluctuations are critical. Its compact design ensures easy installation and maintenance, while the buffer device enhances operational stability and safety.
**Key Features:**
1. **Compact Design:** Small size, lightweight, and easy to maintain.
2. **Buffer System:** The external buffer device ensures smooth operation and prevents medium contamination.
3. **Quiet Operation:** Minimal vibration and noise during operation.
4. **Triple Offset Structure:** Optimized face-to-face length reduces flow resistance and eliminates pressure surges.
5. **Leak-Proof Sealing:** Ensures no leakage with reliable performance.
6. **Adjustable Closing Speed:** Two-step closing mechanism—fast initial closure followed by a slow, adjustable final closure, tailored to specific system requirements.
**Material Composition:**
| Part | Material |
|----------|-----------------------------------|
| Body | Cast iron, ductile iron, cast steel, stainless steel |
| Disc | Cast steel, stainless steel, bronze |
| Stem | Stainless steel |
| Seat | Rubber seat ring, stainless steel layer |
| Buffer Damper | Stainless steel |
The KARFAR HBH47H is engineered for durability, efficiency, and long-term performance in demanding environments. Whether in industrial pipelines or water management systems, this valve offers a reliable solution for controlling flow direction and protecting equipment from damage caused by reverse flow.
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