TECHNICAL DATA SHEET
Product: DN80 – PN40 NRS Globe Valve
Material: Stainless Steel
نوع ساقه: Non-Rising Stem (NRS)
- General Description
This Non-Rising Stem (NRS) globe valve is designed for DN80 (3″) PN40 service. The NRS design features a stem that rotates but does not move vertically, resulting in a compact overall height—ideal for installations with limited overhead space such as underground pipelines, pits, and pump rooms. Constructed from stainless steel, the valve offers excellent corrosion resistance and is suitable for a wide range of industrial applications including water treatment, chemical processing, steam systems, and oil & gas services.
- مشخصات
پارامتر | Value |
اندازه | DN80 (3″) |
رتبهبندی فشار | PN40 (ASME Class 300 equivalent) |
Design Type | Non-Rising Stem (NRS), bolted bonnet |
End Connections | [e.g., Raised Face (RF) Flanges to EN 1092-1 / ASME B16.5] |
Applicable Media | Water, steam, oil, gas, mild corrosive fluids |
محدوده دما | -29°C to +200°C (depending on seat and packing material) |
Flow Direction | Under the disc (preferred for tight shut-off) |
- Material Specification
Item | کامپوننت | مواد | استاندارد |
1 | بدن | Stainless Steel | ASTM A351 CF8M / CF8 / A216 WCB (specify) |
2 | Bonnet | Stainless Steel | ASTM A351 CF8M / CF8 / A216 WCB |
3 | دیسک | Stainless Steel | ASTM A351 CF8M / CF8 |
4 | ساقه | Stainless Steel | ASTM A479 316 / 304 |
5 | صندلی | Stainless Steel / Stellite | Integral / hardfaced |
6 | Packing | PTFE / Graphite | — |
7 | Gasket | Spiral Wound (SS/Graphite) / PTFE | — |
8 | Bolting | Stainless Steel | ASTM A193 B8 / B8M |
- ویژگیهای کلیدی
- Non-Rising Stem (NRS): The stem rotates within the bonnet without linear movement, reducing the valve’s overall height. This design is ideal for underground installations, valve pits, and locations with limited headroom.
- Stainless Steel Construction: Provides excellent resistance to corrosion, erosion, and high temperatures. Suitable for demanding environments including chemical, marine, and steam applications.
- Globe Valve Design: Offers superior throttling capability and positive shut-off compared to gate valves. The flow path creates pressure drop that allows precise flow control.
- Bolted Bonnet: Facilitates easy in-line maintenance and repacking without removing the valve from the pipeline.
- Integral Seat or Stellite Hardfacing (Optional): Provides extended service life in high-temperature or abrasive conditions.
- Anti-Static Design (Optional): Available for applications requiring static charge dissipation.
- Dimensional Data (Typical)
پارامتر | Value |
Face-to-Face Dimension | [e.g., 280 mm / 11.0″ per EN 558 / ASME B16.10] |
Flange Dimensions | EN 1092-1 PN40 / ASME B16.5 Class 300 |
Overall Height (Closed) | [e.g., 350 mm / 13.8″] |
Handwheel Diameter | [e.g., 250 mm / 9.8″] |
Weight (Approx.) | [e.g., 35 kg / 77 lbs] |
Note: Dimensions vary by manufacturer; please refer to actual product drawings.
- Testing & Compliance
- استاندارد طراحی: EN 13709 / ASME B16.34
- حضوری: EN 558 Series 1 / ASME B16.10
- Flange Connection: EN 1092-1 / ASME B16.5
- Pressure Testing: EN 12266 / API 598
- Material Certification: EN 10204 Type 3.1
- کاربردها
- Water distribution systems (underground or pit installations)
- Steam and condensate lines
- Chemical processing plants
- HVAC and building services
- Oil and gas pipelines
- Marine and offshore utilities
- Ordering Information
Please specify the following when ordering:
پارامتر | Options |
جنس بدنه | CF8M (316 SS) / CF8 (304 SS) / WCB (Carbon Steel) |
Seat Material | Integral stainless steel / Stellite hardfaced |
Packing Material | PTFE / Graphite |
End Connections | EN 1092-1 PN40 / ASME B16.5 Class 300 / Other |
Actuation (Optional) | Handwheel / Gear operator / Electric actuator / Pneumatic actuator |
Special Requirements | NACE MR0175 / Fire safe / Anti-static |
- یادداشتها
- NRS vs. OS&Y: The Non-Rising Stem (NRS) design is recommended where vertical space is constrained. For applications requiring visual stem position indication, an Open Stem & Yoke (OS&Y) design may be preferred.
- جهت جریان: For optimal shut-off performance, the valve should be installed with pressure under the disc (flow entering below the seat). Verify direction arrow on the valve body.
ضمانت:
شرکت SAVVY VALVES متعهد به ارائه کیفیت استثنایی محصول و خدمات پس از فروش بدون نگرانی است. شیرهای ما حداقل ۱۲ ماه عمر مفید دارند که در این مدت، تمام قطعات یدکی لازم و دستورالعملهای دقیق تعمیر و نگهداری را به صورت رایگان ارائه خواهیم داد. در طول دوره گارانتی، در صورت بروز هرگونه آسیب غیر انسانی، قطعات را بدون هیچ هزینهای تعویض کرده و پشتیبانی فنی حرفهای ارائه میدهیم. پس از انقضای گارانتی، مشتریان فقط باید هزینه قطعات یدکی را بپردازند، در حالی که همچنان از خدمات تعمیر و نگهداری با تخفیف بهرهمند میشوند. هدف ما کمک به مشتریان برای کاهش هزینههای عملیاتی و افزایش بهرهوری تولید از طریق کیفیت قابل اعتماد و پشتیبانی جامع پس از فروش است. چه برای سوالات فنی و چه برای نیازهای تعمیر و نگهداری، تیم متخصص ما به سرعت پاسخ خواهد داد تا اطمینان حاصل شود که سیستم شیر شما در هر زمان عملکرد بهینه خود را حفظ میکند.