Coudes de tuyau doublés de céramique
- La description
- Enquête
Coudes de tuyau doublés de céramique
spécification:
Taper | |
Taille | DN15-DN400(1/2"-16") |
Note de pression | PN10,PN16,PN25,PN40, PN25, PN25, PN160, CL150, CL300, PN25, CL900 |
Matériau de la veste | WCB, CF8, CF8M, CF3M, Hastelloy, Monel, Alliage 20, Titane |
Matériau de doublure | Céramique ZrO2, Céramiques Al2O3, PN25, Si3N4, SSIC |
Terminer la connexion | Extrémité de bride, Extrémité de soudage bout à bout, EN1092-1, DE 2501, ASME B16.5 |
Applications:
Since ceramics have excellent hardness and strength, FUVALVE développe ceramic lined Elbows, which are
widely used in many highly corrosive and abrasive transmission systems especially for coal fired power plants,
usines sidérurgiques, exploitation minière, industrie chimique, pétrochimique, silicium polycristallin et métallurgie.
The following working conditions are some typical medium in which ceramic lined elbows have been proved to have
good performance.
- Coal powder
- Poudre de silicium
- Cendres volantes
- Mining slurry
- Mining Slag
- Lavage du charbon
- Strong acid slurry
- Paper making Slurry
Fiche technique des céramiques techniques
Propriété | Unités | Matériel | ||||
99.5% alumine | 99% alumine | 95% alumine | ZrO2 (Y-TZP) | ZrO2 (TTZ) | ||
Densité | g/cm3 | ≥3,85 | ≥3,80 | ≥3,60 | ≥5,95 | ≥5,72 |
Absorption de l'eau | % | 0 | 0 | 0 | 0 | 0 |
Dureté | HT | 1700 | 1700 | 1500 | 1300 | 900 |
Résistance à la flexion | MPa | ≥379 | ≥338 | ≥320 | ≥1200 | ≥1200 |
Résistance à la compression | MPa | ≥2240 | ≥2240 | ≥2000 | ≥1990 | 1750 |
Résistance à la rupture | Mpa m1/2 | 4-5 | 4-5 | 3-4 | 6.5-8 | 11 |
Max.. service température | ºC | 1675 | 1600 | 1450 | 1000 | |
CTE | 1×10 -6 /ºC | 6.5~8,0 | 6.2~8,0 | 5.0~8,0 | 8.0~9,5 | 10.2 |
Choc thermique | T(ºC) | ≥250 | ≥200 | ≥220 | ≥300 | 350 |
Conductivité thermique(25ºC) | W/m.k | 30 | 29 | 24 | 3 | 3 |
Résistivité volumique | ohm.cm | |||||
25ºC | >1 X 10 14 | >1 X 10 14 | >1 X 10 14 | >1 X 10 11 | >1 X 10 11 | |
300ºC | 1 X 10 12 | 8 X 10 11 | 10 12 -10 13 | 1 X 10 10 | 1 X 10 10 | |
500ºC | 5 X 10 10 | 2 X 10 9 | 1 X 10 9 | 1 X 10 6 | 1 X 10 6 | |
Force d'isolation | KV/mm | 19 | 18 | 18 | 17 | 20 |
Constante diélectrique(1MHz) | (E) | 9.7 | 9.5 | 9.5 | 29 | 28 |