A Stellite seat flanged globe valve PN16 is a high-durability industrial valve designed for precise flow regulation and reliable shut-off in demanding applications. The Stellite seat features a cobalt-chromium alloy hardfacing applied to the seating surfaces, offering exceptional resistance to wear, erosion, corrosion, and high temperatures . This makes it ideal for severe service conditions such as steam, high-temperature fluids, and abrasive media . The flanged globe valve design provides excellent throttling capability and positive shut-off, with flow typically directed "under the seat" for optimal performance . Rated PN16 (16 bar / 232 psi) and manufactured to EN 13709 standards, these valves are widely used in power generation, petrochemical, refining, and steam systems .
Technical Attributes & Specifications
1. **Seating Surface:** Hard-faced with Stellite (CoCr alloy) for extreme hardness.
2. **Body Material:** Carbon Steel (WCB), Stainless Steel (CF8/CF8M), or Alloy Steel.
3. **Pressure Rating:** PN16 (1.6 MPa / 16 Bar).
4. **Connection Type:** Flanged ends according to EN 1092-1 or DIN 2501.
5. **Design Standard:** EN 13709, DIN 3356, or BS 1873.
6. **Face-to-Face:** EN 558 Series 1 (formerly DIN 3202 F1).
7. **Stem Type:** Outside Screw and Yoke (OS&Y) with rising stem.
8. **Disc Design:** Plug-type or Throttling-type disc with Stellite facing.
9. **Bonnet Design:** Bolted bonnet with high-strength stud bolts.
10. **Stem Packing:** Flexible graphite with anti-extrusion rings for high-temp sealing.
11. **Gasket Type:** Spiral wound SS316 with Graphite/PTFE filler.
12. **Operation:** Manual handwheel, gear-operated, or actuated.
13. **Flow Direction:** Unidirectional (indicated by body arrow).
14. **Backseat Feature:** Integral backseat allows packing replacement under pressure.
15. **Erosion Resistance:** Excellent against high-pressure steam and cavitation.
16. **Temperature Range:** -29°C to +425°C (Carbon Steel) or +600°C (Alloy Steel).
17. **Casting Quality:** 100% Visual and Dimensional inspection; optional NDT.
18. **Testing Standards:** Shell and seat pressure testing per EN 12266-1 or API 598.
19. **Leakage Class:** Rate A (Zero leakage) for metal-to-metal contact.
20. **Applications:** Boiler feed systems, steam headers, and thermal oil lines.
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
