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**Cast Steel Single Disc Flap Wafer Check Valve – Vatac Series**
Model NO.: H71
Application: Industrial Usage, Water Industrial Usage, Household Usage
Characteristic: Flap Wafer Check Valve
Design & Manufacture: API 6D, ASME B16.34
Pre-Temp. Rating: ASME B16.34
Face to Face: ASME B16.10
Ends Connection: ASME B16.5/16.47
Inspect & Test: API 598
Certificate 1: DNV CE 0575
Certificate 2: ISO 9001: 2008
Certificate 3: API 600
Certificate 4: API 6D
Trademark: VATAC or OEM
Transport Package: Standard Sea Worthy
Specification: API 6D, BS1868, DIN3202, ISO
Origin: China
HS Code: 84818040
The Vatac series duckbill check valves are designed with a flexible sleeve made from high-quality fabric-reinforced elastomer materials. These valves offer excellent resistance to corrosion and wear, making them ideal for use in environments with abrasive slurries, sludge, or effluent. The flexible design ensures maximum flow with minimal pressure drop, even under continuous operation.
**Construction Types:**
- Flange Duckbill Check Valve
- Slip-over Duckbill Check Valve
- In-line Duckbill Check Valve
- Low Pressure
- Flanged Ends to ASME B16.5 and B16.47 A/B
**Main Parts and Materials:**
| Part Names | Part Materials |
|------------|----------------|
| Flange | Q235, F304, F316, F304L, F316, F316L, SAF 2205, BRONZE |
| Body Material | Natural Rubber, NBR, EPDM |
| Suitable Medium | Water, Wastewater, Sewage |
| Suitable Temperature | -29°C ~ 120°C |
**Pressure Ratings:**
PN10, PN16, CLASS150
**Size Range:**
DN50~DN1000, 2"~40"
These check valves are widely used in industrial and municipal applications where reliable and durable flow control is essential. With multiple certifications including API, ASME, and ISO standards, these valves ensure compliance with international quality and safety requirements. Whether you need standard or custom options, the Vatac series offers flexibility and performance for a wide range of applications.
August 02, 2025