TECHNICAL DATA SHEET
Product: DN80 – PN40 NRS Globe Valve
Material: Stainless Steel
Tipo de haste: 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.
- Especificações
Parâmetro | Value |
Tamanho | DN80 (3″) |
Classificação de pressão | 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 |
Faixa de temperatura | -29°C to +200°C (depending on seat and packing material) |
Flow Direction | Under the disc (preferred for tight shut-off) |
- Material Specification
Item | Componente | Material | Padrão |
1 | Corpo | Stainless Steel | ASTM A351 CF8M / CF8 / A216 WCB (specify) |
2 | Bonnet | Stainless Steel | ASTM A351 CF8M / CF8 / A216 WCB |
3 | Disco | Stainless Steel | ASTM A351 CF8M / CF8 |
4 | Tronco | Stainless Steel | ASTM A479 316 / 304 |
5 | Assento | Stainless Steel / Stellite | Integral / hardfaced |
6 | Packing | PTFE / Graphite | — |
7 | Gasket | Spiral Wound (SS/Graphite) / PTFE | — |
8 | Bolting | Stainless Steel | ASTM A193 B8 / B8M |
- Principais características
- 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)
Parâmetro | 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
- Padrão de design: EN 13709 / ASME B16.34
- Cara a cara: 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
- Aplicações
- 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:
Parâmetro | Options |
Material do corpo | 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 |
- Notas
- 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.
- Direção do fluxo: 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.
GARANTIA:
A SAVVY VALVES está comprometida em oferecer produtos de qualidade excepcional e um serviço pós-venda sem preocupações. Nossas válvulas têm garantia de vida útil mínima de 12 meses, durante a qual forneceremos gratuitamente todas as peças de reposição necessárias e instruções detalhadas de manutenção. Dentro do período de garantia, caso ocorra algum dano não causado por intervenção humana, substituiremos os componentes gratuitamente e forneceremos suporte técnico profissional. Após o término da garantia, os clientes pagam apenas o custo das peças de reposição, continuando a se beneficiar de serviços de manutenção com desconto. Nosso objetivo é ajudar os clientes a reduzir custos operacionais e aumentar a eficiência da produção por meio de qualidade confiável e suporte pós-venda abrangente. Seja para consultas técnicas ou necessidades de manutenção, nossa equipe de especialistas responderá prontamente para garantir que seu sistema de válvulas mantenha o desempenho ideal o tempo todo.