Page 16 - Multi-line-automatic

Pump

55i

Pump units for oil

Product description
Technical data
The positive-displacement, single-action 55i pumps are fully
adjustable by means of manually modifying the angle of the Function principle camshaft-operated piston pump
K 3 /16: 0,20 cm 3 , 0.0122 in 3
Metering quantity
rocker arm to the cam The pump operation is a two-stage K 1 /4: 0,302cm 3 , 0.0184 in 3
process As the camshaft rotates, the cam mechanically K 3 /8: 0,68 cm 3 , 0.0415 in 3
forces the pump plunger forward, displacing a measured Outlets 1 to 7
mineral- or synthetic-based oil,
Lubricant
volume of oil On the second or return stroke, a spring assists viscosity max 1 700 mm 2 /s
the plunger to return for prime All pump elements are Operating pressure K 3 /8: max 240 bar, 3 500 psi
designed with a pushbutton for manual pre-lubrication Operating temperature K 1 /4: max 400 bar, 6 000 psi
–20 to +70 °C, –4 to + 158 °F
Reservoir 1,4 to 3,8 l, 0.37 to 1.0 gal
depends on outlet quantity
Features and benefits Internal ratio 37 5:1; 60:1; 112 5:1
Drive speed <20 min -1 ; depends on box lubricator
• Easy adjustment of flow rate Electrical motor drives for pumps with 112 5:1 and
300:1 ratio only
• Pushbutton for pre-lubrication and system de-aeration Connection outlet 1 / 8 NPTF
Dimensions min 127 × 88 × 35 mm
• Modular box lubricator mounting for ease of maintenance max 127 × 132 × 35 mm
• Pumps with suction tube for oil suction from the lubricator min. 5 × 3 15 /32 × 1 3 /8 in
max. 5 × 5 3 /16 × 1 3 /8 in
box or with direct feed by overhead reservoir outer parts when installed in
box lubricator
• With or without sight glass for visual flow indication Mounting position vertical
2
• For operating viscosity up to 1 700 mm /s Options pumping elements without sight glass
lubrication sentries to control the oil-
level and camshaft rotation, oil-level
regulator
Applications
• Gas engines
• Reciprocating compressors NOTE
• High-pressure oil, total-loss lubrication systems For further technical information, technical drawings,
accessories, spare parts or product function descriptions,
see the following publication available on
SKF com/lubrication:
FORM 442834 EN

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