API 6D Check Valve, ASTM A995 4A, 6 Inch, Class 300 LB, RF
Key Specifications / Features
Experience superior fluid control with our Duplex Stainless Steel Check Valve, expertly crafted to meet the highest standards. Constructed from ASTM A995 4A, this valve is compliant with API 6D and BS 1868, ensuring top-notch quality and precision. With a substantial 6-inch size (DN150), this check valve operates seamlessly in Class 300 LB and PN50 environments. The RF Face Flanged design ensures secure connections, and the Bolted Bonnet with an Integral Seat adds to its reliability.
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Detail Information
Detail Infomation
Valve description：Duplex Check Valve, bolted bonnet, raised face flanged, integral seat.
Design: BS 1868, API 6D.
Body: ASTM A995 4A
Nominal size: 6 Inch.
Nominal class: 300 LB.
End Connection: RF flanged.
Face to face: ASME B16.10, GB/T 12221.
Test and inspection: API 598.
Product Range:
Body material: Duplex Steel.
Normal diameter: 2 - 20 Inch (DN50 - DN500).
End connection: Flanged.
Pressure range: 150 - 600 LB (PN16 - PN100).
Working temperature: -29℃ - +429℃.
Technical parameters and characteristics
| Product | Duplex Check Valve. |
| Nominal diameter | 2 Inch - 20 Inch. |
| Design temp. | Down to -29℃. |
| Design pressure | Class 150 - 600 LB. |
| Material | Duplex Steel. |
| Design standard | BS1868/ API6D. |
| Face to face | ASME B16.10/GB/T 12221. |
| Connection end | Flange, Butt Welding. |
| Test standard | API 598. |
| Package | Plywood |
| Application | water, oil and gas. |
| Certificate | CE, TUV, ISO9001, ISO14001 |
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Source: https://www.weldonvalves.com/api-6d-check-valve-astm-a995-4a-6-inch-class-300-lb-rf.html