Raccordi KF Flange KF
Guanyu Tube offers a complete line of vacuum KF fittings and KF flanges. The tube portions are fabricated from 304 o 316L or other high quality stainless steels. Guanyu’s elbows, and all tees and crosses are made with the pull port technique. This allows smooth, crevice-free butt welds to provide the maximum in cleanliness for UHV applications. Bakeout range is up to 200°C. Standard finish is bead blasted.
- KF Stainless Steel Flanges
- KF Stainless Steel Nipples
- KF Stainless Steel Elbows
- KF Stainless Steel Tees
- KF Stainless Steel Crosses
- KF Stainless Steel Clamps and Seals
| Flange Dimensione | Materiale | Tubo OD | Dimension, in. (mm) | Dimension, in. (mm) | Dimension, in. (mm) | Dimension, in. (mm) |
| – | – | – | A | B | C | D |
| NW10 | 304/316L | 1/2″ | 1.18″ (30.0) | 0.48″ (12.2) | 0.12″ (3.0) | 0.10″ (2.5) |
| NW16 | 304/316L | 3/4″ | 1.18″ (30.0) | 0.68″ (17.2) | 0.12″ (3.0) | 0.10″ (2.5) |
| NW25 | 304/316L | 1″ | 1.57″ (40.0) | 1.03″ (26.2) | 0.12″ (3.0) | 0.10″ (2.5) |
| NW40 | 304/316L | 1 1/2″ | 2.17″ (55.0) | 1.62″ (41.2) | 0.12″ (3.0) | 0.10″ (2.5) |
| NW50 | 304/316L | 2″ | 2.95″ (75.0) | 2.06″ (52.3) | 0.12″ (3.0) | 0.10″ (2.5) |
Caratteristiche:
- 1. Flanges are designed according to ISO2861 specification and can be changed upon request.
- 2. Flange sizes are from NW10 to NW50
- 3. Vacuum Range: ≥10-8 Torr
- 4. Standard materials are 304 and 316L stainless steel.
- 5. Tube sizes are from 1/2″ to 2″
- 6. The system can afford up to 400℉ (200 ℃). However, sustained baking above 302℉ (150°C) may result in deterioration of the O-ring.
- 7. KF products are supplied with a machining finish. Other finishes are also available.
- 8. Flanges and seals are reusable.
- 9. No tools for assembly or disassembly.
- 10. KF flanges are 100% tested before shipping.
- 11. Seal Temperature Range:
- Fluorocarbon FKM (Viton): -5 ℃ -204 ℃ (23℉ -399℉)
- Silicon: -50℃ ~ 180℃ (-58℉〜356℉)
- Buna-N (NBR): – 25℃ ~ 121℃ (-13℉ ~ 250℉)
Applicazioni:
- 1. High Vacuum
- 2. Roughing line
- 3. Vacuum systems, which require cleaning and modified frequently.
- 4. Experimental system in research laboratories
1.WING NUT
2.SPRING WASHER
3.EYE BOLT
4.WELD FLANGE
5.CLAMP
6.O-RING
7.CENTER RING
1.SPRING WASHER
2.WING NUT
3.EYE BOLT
4.CLAMP
5.O-RING
6.CENTER RING
7.WELD FLANGE
Short Weld
| Flange Dimensione | Tubo Dimensione | Dimensions, in. (mm) | Dimensions, in. (mm) |
| – | – | C | E |
| NW10 | 1/2″ | 0.50″ (12.7) | 0.37″ (9.4) |
| NW16 | 3/4″ | 0.50″ (12.7) | 0.62″ (15.7) |
| NW25 | 1″ | 0.50″ (12.7) | 0.87″ (22.1) |
| NW40 | 1 1/2″ | 0.75″ (19.1) | 1.37″ (34.8) |
| NW50 | 2″ | 0.75″ (19.1) | 1.87″ (47.5) |
Blank Flange
| Flange Dimensione | Tubo Dimensione | Dimensions, in. (mm) | Dimensions, in. (mm) |
| – | – | C | D |
| NW10 | 1/2″ | 0.20″ (5.0) | 1.18″ (30.0) |
| NW16 | 3/4″ | 0.20″ (5.0) | 1.18″ (30.0) |
| NW25 | 1″ | 0.20″ (5.0) | 1.57″ (40.0) |
| NW40 | 1 1/2″ | 0.20″ (5.0) | 2.17″ (55.0) |
| NW50 | 2″ | 0.20″ (5.0) | 2.95″ (75.0) |
Half Nipples
| Flange Dimensione | Tubo Dimensione | Dimensions, in. (mm) | Dimensions, in. (mm) |
| – | – | C | E |
| NW10 | 1/2″ | 1.25″ (31.8) | 0.37″ (9.4) |
| NW16 | 3/4″ | 1.15″ (29.2) | 0.62″ (15.7) |
| NW25 | 1″ | 2.03″ (51.6) | 0.87″ (22.1) |
| NW40 | 1 1/2″ | 2.40″ (61.0) | 1.37″ (34.8) |
| NW50 | 2″ | 3.15″ (80.0) | 1.87″ (47.5) |
Reducing
| Flange Dimensione | Tubo Dimensione | C, in. (mm) |
| NW25×NW16 | 3/4″ | 1.30″ (33.0) |
| NW40×NW16 | 3/4″ | 1.30″ (33.0) |
| NW40×NW25 | 1″ | 2.18″ (55.4) |
| NW50×NW16 | 3/4″ | 1.30″ (33.0) |
| NW50×NW25 | 1 1/2″ | 2.18″ (55.4) |
| NW50×NW40 | 2″ | 2.55″ (64.8) |
90° Elbow
| Flange Dimensione | Tubo Dimensione | A, in. (mm) |
| NW10 | 1/2″ | 1.25″ (31.8) |
| NW16 | 3/4″ | 1.15″ (29.2) |
| NW25 | 1″ | 1.65″ (41.9) |
| NW40 | 1 1/2″ | 2.40″ (61.0) |
| NW50 | 2″ | 3.15″ (80.0) |
Equal Tee
| Flange Dimensione | Tubo Dimensione | A, in. (mm) |
| NW10 | 1/2″ | 1.25″ (31.8) |
| NW16 | 3/4″ | 1.15″ (29.2) |
| NW25 | 1″ | 2.03″ (51.6) |
| NW40 | 1 1/2″ | 2.40″ (61.0) |
| NW50 | 2″ | 3.15″ (80.0) |
KF Clamp
| Flange Dimensione | Tube Size | Dimension, in. (mm) | Dimension, in. (mm) | Dimension, in. (mm) |
| – | – | A | B | C |
| NW10/NW16 | 1/2″ or 3/4″ | 1.69″ (42.9) | 2.47″ (62.8) | 0.63″ (16.0) |
| NW25 | 1″ | 2.17″ (55.1) | 2.82″ (71.6) | 0.63″ (16.0) |
| NW40 | 1 1/2″ | 2.76″ (70.1) | 3.54″ (89.8) | 0.63″ (16.0) |
| NW50 | 2″ | 3.70″ (94.0) | 4.43″ (112.5) | 0.79″ (20.1) |
Riferimenti correlati:
Raccordo per tubi in acciaio inox
Metodo di connessione dei raccordi per tubi in acciaio inossidabile
Standard e specifiche ISO per tubi e raccordi in acciaio
Tubi e raccordi in acciaio DIN Standard e specifiche
Standard e specifiche BS per tubi e raccordi
Raccordi per tubi JIS Standard
Specifiche standard ASTM per tubi strutturali Tubi meccanici
Raccordi per tubazioni in acciaio inox austenitico ASTM A403, battuto
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ASTM Specificazione materiale Flangia di raccordo Fusione di valvola a forgiatura
Specifiche standard delle valvole ASTM
DIN 1686 - Standard per la fusione grezza Tolleranza generale
Tabella di confronto dei materiali DIN 1691 1693 e DIN EN 1561
Tabella delle tolleranze ISO
Tolleranze ISO per i dispositivi di fissaggio
Tolleranze secondo ISO 9445 Nastri stretti e larghi laminati a freddo
Tolleranze secondo ISO 9444 Nastri laminati a caldo in continuo
Standard e specifiche ISO per tubi e raccordi in acciaio
Tolleranze secondo la norma ISO 18286 Lamiera quarto in acciaio inox laminata a caldo