Fiche technique
Pompe à fioul type RSH
Taille 32, 63, 95, 125
Application |
Les pompes RSH sont destinées aux brûleurs de |
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moyenne puissance avec un débit allant jusqu’à |
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285 l/h. |
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Elles sont équipées d’un régulateur de pression |
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avec fonction de coupure intégrée. |
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Un ressort de régulateur de pression spécial est |
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disponible pour des utilisations en pompe |
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d’alimentation / transfert. |
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Fonction |
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Applications et caractéristiques
•Fioul domestique et lourd
•Installations mono et bitube
•1 étage de puissance
•Régulateur de pression incorporé, avec fonction de coupure
•Filtre annulaire
•Ressort spécial pour application en pompe d’alimentation / transfert
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Pression |
Aspiration |
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Retour |
Le fioul est aspiré par la conduite d’aspiration (S), puis au travers du filtre (H) jusqu’à l’engrenage
(C) où la pression est augmentée. L’ensemble piston / ressort du régulateur de pression permet de maintenir cette pression constante, à la valeur réglée sur la vis (P1).
Dans une installation bitube, le fioul en excès est ramené vers l’orifice de retour (R) puis vers la citerne. Pour une installation monotube, l’orifice de retour (R) est bouché et la vis (A) de bipasse est enlevée. Le fioul excédentaire est ramené à l’aspiration de l’engrenage (voir schéma).
Lorsque la pompe s’arrête, la pression chute, le ressort du régulateur de pression pousse le piston vers son siège, provoquant la coupure effective du débit vers le gicleur.
Purge
Dans une installation bitube, la pompe se purge automatiquement. L’air est conduit au travers de la restriction (O) vers l’orifice de retour (S).
Dans une installation monotube, l’orifice de retour
(R) étant bouché, la vis de bipasse (A) étant en place, la purge doit-être effectuée manuellement par l’orifice de sortie gicleur (P).
Dans les installations monotube avec citerne « en dessous », la fonction coupure du régulateur doitêtre rendue inopérante. Pour ce faire, utiliser la prise de manomètre (Pn) comme sortie gicleur et boucher la sortie (P). Une vanne solénoïde de coupure doit, dans ce cas, être montée dans la ligne gicleur.
Garantie
Danfoss n’offre aucune garantie si les pompes sont utilisées hors caractéristiques techniques spécifiées, ou avec un fioul contenant des particules abrasives.
© Danfoss | 2019.03 |
BD.DA.P3.04 | 1 |
Fiche technique |
Pompe à fioul type RSH Taille 32, 63, 95, 125 |
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Identification |
Exemple: |
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RSH 63 |
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32 = Débit 91 l/h |
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63 = Débit 143 l/h |
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95 = Débit 210 l/h |
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125 = Débit 285 l/h |
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Débit pour 20 cSt., 15 bar, 2800 min-1. |
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Caractéristiques techniques |
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RSH |
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32 |
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63 |
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95 |
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125 |
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Types de fioul |
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Gasoil standard, mazout lourd et biocarburants |
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Plage de viscosité (mesurée à |
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4.3 - 200 cSt. (mm²/s) |
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l’orifice d’aspiration) |
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Filtre : surface/maille |
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75 cm² / 340 μm |
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170 cm² / 340 μm |
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Plage de pression |
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15-35 bar |
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Réglage usine |
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21 ±1 bar |
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Pression maximum admissible |
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4 bar |
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à l’aspiration et au |
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Vitesse de rotation |
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1400-3450 min-1 |
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Max. starting torque |
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0.22 Nm |
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0.25 Nm |
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0.30 Nm |
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0.35 Nm |
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Couple de démarrage max. |
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–20 à +120 °C |
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Températures ambiante/ |
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–25 à +120 °C |
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transport |
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Température du fluide |
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–10 à +120 °C |
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Norme arbre/collet |
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EN 225 |
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Débit au gicleur |
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Couple de service |
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Consommation |
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2 | © Danfoss | 2019.03 |
BD.DA.P3.04 |