NRS SS Globe Valve-DN80 PN40 RF
Description
TECHNICAL DATA SHEET
NRS STAINLESS STEEL GLOBE VALVE – CF8
DN80 PN40 · RAISED FACE FLANGED ENDS
1. GENERAL DESCRIPTION
Non-rising stem (NRS), bolted bonnet globe valve with flanged ends and outside screw & yoke. The handwheel rotates without vertical movement, saving installation headroom. Suitable for isolation and throttling service in industrial applications. The valve body and trim are manufactured from ASTM A351 CF8 (SS304) stainless steel.
2. DESIGN STANDARDS
| Parameter | Standard / Specification |
|---|---|
| Valve design | EN 13709 / ASME B16.34 |
| Face-to-face dimension | EN 558-1, Series 1 (310 mm) |
| Flange connection | EN 1092-1 Type B1, PN40 RF |
| Pressure testing | EN 12266-1 Category A |
| Marking | EN 19 |
3. MATERIALS OF CONSTRUCTION
| Component | Material |
|---|---|
| Body | ASTM A351 CF8 (1.4308) / SS304 |
| Bonnet | ASTM A351 CF8 / SS304 |
| Disc | SS304, seating face Stellite® overlaid |
| Seat ring | SS304, Stellite® faced, renewable |
| Stem (NRS) | ASTM A276 SS304 |
| Stem nut | ASTM B148 C95800 (Ni-Al bronze) |
| Packing set | Graphite / PTFE braided |
| Body-bonnet gasket | Spiral wound SS304 + Graphite |
| Bolting | ASTM A193 B8 (SS304) / Nuts B8 |
| Handwheel | Ductile iron, epoxy coated |
4. PRESSURE – TEMPERATURE RATINGS
Based on EN 1092-1, material group 13EO (1.4308 / CF8), PN40
| Temperature (°C) | Max. working pressure (bar) |
|---|---|
| -10 to 50 | 40.0 |
| 100 | 35.2 |
| 150 | 32.0 |
| 200 | 29.7 |
| 250 | 27.5 |
| 300 | 25.7 |
| 350 | 24.0 |
Intermediate values should be interpolated in accordance with EN 1092-1.
5. TESTING & INSPECTION
| Test type | Test medium | Test pressure | Acceptance criteria |
|---|---|---|---|
| Shell test | Water | 60 bar | No visible leakage |
| Seat test | Water | 44 bar | Rate A (zero leakage) per EN 12266-1 |
Additional NDE (PMI, radiography, dye penetrant) is available upon request.
6. DIMENSIONS & APPROXIMATE WEIGHTS
| Symbol | Description | Value |
|---|---|---|
| DN | Nominal size | 80 mm |
| PN | Pressure class | 40 bar |
| L | Face-to-face | 310 mm |
| H | Center to handwheel top | ~465 mm |
| ØW | Handwheel diameter | ~250 mm |
| D | Flange outside diameter | 200 mm |
| K | Bolt circle diameter | 160 mm |
| n × d | Bolt holes | 8 × Ø18 mm |
| Weight | (approximate) | 48 kg |
Flange facing: Raised Face (RF) to EN 1092-1 Form B1.
7. OPERATION
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Standard: NRS handwheel, multi-turn manual operation.
-
Optional: ISO 5210 mounting base for electric actuator, gear operator, chain wheel or locking device.
8. FEATURES & BENEFITS
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Non-rising stem – saves installation space and protects stem threads.
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Bolted bonnet – allows easy access for inspection and maintenance.
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Renewable seat ring – extends service life.
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Blow-out proof stem – provides operational safety.
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Stellite® hardfaced seating surfaces – superior resistance to wear, galling and erosion.
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All CF8 (SS304) construction – excellent corrosion resistance, suitable for water, steam, oil, gas and many chemical media (verify compatibility with gasket and packing materials).
9. OPTIONS & VARIATIONS
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Rising stem (OS&Y) configuration
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CF8M (SS316), CF3M (SS316L) or special alloy body materials
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Cryogenic extended bonnet
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NACE MR0175 / ISO 15156 compliance
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Fire-safe design per API 607 / ISO 10497
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Limit switches and position indicators
10. ORDERING INFORMATION
Globe Valve, NRS, CF8 Stainless Steel, DN80, PN40, Raised Face Flanged Ends, Handwheel Operated, Stellited Seat, EN 1092-1 Flanges.
This technical data sheet supersedes the previous version (CF8M). For certified dimensional drawings and performance curves, please contact the manufacturer.
