Data sheet
Oil Pump Type RSH Size 32, 63, 95, 125
Application |
RSH oil pumps are designed for small/medium |
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sized domestic and commercial oil burners up to |
• Light and heavy oil |
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285 l/h. |
• 1 or 2-pipe operation |
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The pumps have a built-in pressure regulator |
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1-stage |
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with shut-off function. |
• Built-in pressure regulator with shut-off |
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A special regulation spring is available for feed/ |
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Ring filter |
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transfer applications. |
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• Special spring available for feed/transfer |
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applications |
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Pressure |
Suction |
Return |
From the suction inlet (S) oil is drawn through the gear set, where the pressure is increased. By means of the piston and the spring in the pressure regulator the pressure is kept constant at the value set on adjustment screw (P1).
In 2-pipe systems the excess oil is led back to the return outlet (R). In 1-pipe systems with plugged return outlet (R) and removed by-pass screw (A), the oil is returned internally to the gear set (see figure).
When the pump is stopped the pressure drops and the spring force in the pressure regulator will move the piston until it seats and the oil flow is shut off effectively.
Bleeding
In 2-pipe systems the pumps are self-priming, i.e. bleeding is performed via the constriction (O) to the return outlet (R).
In 1-pipe systems with plugged return outlet (R) and by-pass screw (A) removed, bleeding must be performed through the pressure gauge port (Pn).
In 1-pipe systems with underlying tank, the closing function of the regulating valve must be rendered inoperative. This is made by connecting the nozzle line to the pressure gauge port (Pn) and plug the pressure port (P). In this application a cut-off valve must be installed in the nozzle line.
Warranty
For pumps used outside the stated technical data and used with oil containing abrasive particles Danfoss cannot give any warranty.
© Danfoss | 2019.03 |
BD.DA.P3.02 | 1 |
Data sheet |
Oil Pump Type RSH Size 32, 63, 95, 125 |
Identification
Technical data
Example:
RSH 63
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32 = Capacity 91 l/h |
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63 = Capacity 143 l/h |
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95 = Capacity 210 l/h |
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125 = Capacity 285 l/h |
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Nozzle capacity at 20 cSt., 15 bar, 2800 min-1. |
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RSH |
32 |
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63 |
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95 |
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125 |
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Oil types |
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Standard fuel gas oil, heavy oil and bio fuels |
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Viscosity range (measured |
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4.3 - 200 cSt. (mm²/s) |
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in suction inlet) |
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Filter area / mesh |
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75 cm² / 340 μm |
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170 cm² / 340 μm |
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Pressure range, stage |
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15-35 bar |
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Factory setting |
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21 ±1 bar |
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Max. pressure in suction |
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4 bar |
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inlet/return outlet |
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Speed |
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1400-3450 min-1 |
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Max. starting torque |
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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Ambient temperature |
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–20 to +120 °C |
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Storage temperature |
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–25 to +120 °C |
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Temperature of medium |
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–10 to +120 °C |
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Neck / Flange |
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EN 225 |
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Nozzle capacity |
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Operating torque |
Power consumption |
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2 | © Danfoss | 2019.03 |
BD.DA.P3.02 |