DN80-PN40 NRS SS Globe Valve

DN80-PN40 NRS SS Globe Valve

Size DN80 (3″)
Pressure Rating 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
Temperature Range -29°C to +200°C (depending on seat and packing material)
Flow Direction Under the disc (preferred for tight shut-off)

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TECHNICAL DATA SHEET

Product: DN80 – PN40 NRS Globe Valve
Material: Stainless Steel
Tipo di stelo: Non-Rising Stem (NRS)

  1. 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.

  1. Specifiche

Parametro

Value

Misurare

DN80 (3″)

Valutazione della pressione

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

Intervallo di temperatura

-29°C to +200°C (depending on seat and packing material)

Flow Direction

Under the disc (preferred for tight shut-off)

  1. Material Specification

Item

Component

Materiale

Standard

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

Stelo

Stainless Steel

ASTM A479 316 / 304

5

Posto a sedere

Stainless Steel / Stellite

Integral / hardfaced

6

Packing

PTFE / Graphite

7

Gasket

Spiral Wound (SS/Graphite) / PTFE

8

Bolting

Stainless Steel

ASTM A193 B8 / B8M

  1. Caratteristiche principali
  • 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.
  1. Dimensional Data (Typical)

Parametro

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.

  1. Testing & Compliance
  • Standard di progettazione: EN 13709 / ASME B16.34
  • Di persona: 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
  1. Applicazioni
  • 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
  1. Ordering Information

Please specify the following when ordering:

Parametro

Options

Materiale del 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

  1. Notes
  • 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.
  • Direzione del flusso: 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.

GARANZIA:

SAVVY VALVES si impegna a fornire una qualità di prodotto eccezionale e un servizio post-vendita senza pensieri. Le nostre valvole sono garantite per una durata minima di 12 mesi, durante i quali forniremo gratuitamente tutti i pezzi di ricambio necessari e istruzioni di manutenzione dettagliate. Durante il periodo di garanzia, in caso di danni non causati dall'uomo, sostituiremo i componenti gratuitamente e forniremo supporto tecnico professionale. Dopo la scadenza della garanzia, i clienti dovranno pagare solo il costo dei pezzi di ricambio, beneficiando comunque di servizi di manutenzione scontati. Il nostro obiettivo è aiutare i clienti a ridurre i costi operativi e a migliorare l'efficienza produttiva attraverso una qualità affidabile e un supporto post-vendita completo. Che si tratti di richieste tecniche o di esigenze di manutenzione, il nostro team di esperti risponderà tempestivamente per garantire che il vostro sistema di valvole mantenga prestazioni ottimali in ogni momento.

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