A Stainless steel AISI 316 flanged swing check valve PN 16 is a non-return valve designed to prevent reverse flow in industrial piping systems. The AISI 316 (equivalent to ASTM A351 CF8M) material offers excellent corrosion resistance against acids, chlorides, and marine environments . Its swing check design features a disc that pivots on a hinge, allowing forward flow and closing automatically when flow reverses . The flanged ends provide secure, leak-proof connections compliant with PN 16 (pressure rating of 16 bar / 232 psi) . Manufactured under EN 12266 testing standards, these valves are widely used in water treatment, chemical processing, food and beverage, pharmaceutical, and offshore applications .
Technical Attributes & Specifications
1. **Body Material:** ASTM A351 CF8M / AISI 316 Stainless Steel.
2. **Pressure Rating:** PN16 (1.6 MPa / 16 Bar).
3. **Connection Type:** Flanged ends according to EN 1092-1 or DIN 2501.
4. **Sealing Surface:** Integrated metal-to-metal seat for high-temperature durability.
5. **Design Standard:** EN 14341, DIN 3356, or ASME B16.34 equivalent.
6. **Face-to-Face:** EN 558 Series 10 (formerly DIN 3202 F6).
7. **Disc Material:** Precision cast AISI 316 Stainless Steel.
8. **Hinge Pin:** Heavy-duty SS316 to prevent rotational wear.
9. **Cover Design:** Bolted cover for easy internal inspection and cleaning.
10. **Gasket Material:** PTFE or Reinforced Graphite for chemical compatibility.
11. **Flow Characteristic:** Full-bore design for low head loss.
12. **Corrosion Resistance:** Superior resistance to acetic acid, phosphoric acid, and chlorides.
13. **Maximum Temperature:** Up to **400°C** (subject to pressure/temperature de-rating).
14. **Minimum Temperature:** Rated for cryogenic service down to **-196°C**.
15. **Installation:** Suitable for horizontal or vertical lines (with upward flow).
16. **Casting Method:** Investment casting for superior surface finish and accuracy.
17. **Leakage Rate:** Compliant with EN 12266-1 Rate A (Zero Leakage).
18. **Testing Standards:** Shell and seat pressure testing per API 598 or EN 12266.
19. **Finish:** Acid-passivated for enhanced oxidation resistance.
20. **Applications:** Desalination plants, chemical reactors, and food processing.
Contact: Jorge Yang
Phone: +86-13588258503
E-mail: sales@fluvalve.com
Whatsapp:+86-13588258503
Add: Room 331, South Building,Building 1, No.3 Jinpeng Street, Sandun Town, Xihu District, Hangzhou City, Zhejiang Province
