Page 64 - Single-line automatic lubrication systems

Pump unit

84944, 84961
Pump units for grease

Description
Technical data
Models 84944 and 84961 are pumping systems designed to operate
centralized lubrication systems that utilize single-line, parallel grease Order number 84944
84961
metering components. The pump is double acting, dispensing lubri- Function principle hydraulically operated,
cant on both the up and down strokes. These units are designed for double-acting piston pump
Outlets 1
off-road equipment that utilizes 24 V DC power sources. These units
Metering quantity 180 cm 3 / stroke, 11 in 3 / stroke
can be used in conjunction with: Lubricant grease NLGI 0, 1, 2
Models 244270 (not potted) or 249605 (potted) cycle timers; Operating temperature –40 to +57 °C; –40 to +135 °F
Model 84944 hydraulically operated pump with 60 lb metal Fluid inlet temperature max. +99 °C; +210 °F
min. 20 bar, 300 psi
Hydraulic inlet pressure
reservoir and vent valve (basic pump); and Model 84961 basic max. 205 bar, 3 000 psi
pump (similar to Model 84944 but without reservoir or vent valve). Pressure ratio 16:1
Reservoir 27,0 kg; 60.0 lb
These products include a pump and hydraulic control. Material steel, brass, copper, polyurethane, nitrile
Connection outlet 3 /4 NPTF (M)
Hydraulic inlet/outlet 1 /4 NPTF (M)
Features and benefits Flow rate at 30 cycles/min: 3,8 l/min, 1.0 gal/min
Operating voltage 24 V DC
• Robust Dimensions:
84944 381 × 495,3 × 889 mm
• Pump operates by an electrical signal 15 × 19.5 × 35 in
84961 76 × 177,8 × 866,8 mm
• Supplied with metal reservoir with removable cover 3 × 7 × 34.125 in
for easy filling Mounting position vertical
• Includes a hydraulic operated solenoid vent valve 24 V DC Cycle timer
Voltage 24 V DC
• Includes a hydraulic pressure reduction valve rated Cycle rate per min min. 6, max. 60
4 to 55 bar (60 to 800 psi) output
• Bulk filling method
• For use with metering devices of category 5, 6 and 7 NOTE
Further technical information, technical drawings,
Applications accessories, spare parts or product function descriptions
available on SKF.com/lubrication.
• Construction machinery
• Heavy machines
• Vehicles

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