Technical Data; Sound Pressure Level - Steffens WL Bedienungsanweisung

4. Technical data

Maximum permissible total head:
Preset relief pressure - red cap:
Preset relief pressure - blue cap:
Maximum permissible
operating pressure [PS]:
Min. - maximum permissible
temperature of pumped liquid [TS]:
Suction lift:
Q (l/h)
WL 1002 1000
WL 1502 1500
WL 2002 2000
WL 2402 2500
WL 2502 2500
WL 3002 3000
WL 4000 4000
WL 5000 5000
WN 201 2000
WN 301 3000
WN 500 5000
For use in a 4 pole motor with a r.p.m. of 1450 per min. If using
the motor with a frequency of 60 Hz a special motor driving pulley
(available on request) must be used. The rated number of strokes
given in the list must be adhered to.
Motor base and belt guard are designed for the following motor
sizes in accordance with DIN 42 673 as well as for intermediate
sizes:
Pump Motor size
WL 1002 - 2402 71 - 80
90 - 100
WL 2502 - 3002 80 - 100
WL 4000 - 5000
WN 201 - 301 80 - 90
WN 500
* It is recommended to use V-belts, make Optibelt Super TX,
notched and cogged, in accordance with DIN 2215.

4.1 Sound pressure level

The sound pressure level of all WL and WN piston pumps is lower
than 70 dB (A).
5. Installation
Before the pump is taken into operation, the
complete machinery into which the pump is to
Note
incorporated must be declared in accordance
with all relevant regulations.
5.1 Installation of motor and belt guard
The belt guard supplied with the pump must
always be fitted during operation. The pump must
not be operated if the belt guard is defective.
Installation instructions for motor and belt guard:
The belt guard meets DIN 31 100.
1. If necessary, slacken the screws holding the belt guard wall so
much that the guard can be turned, thus allowing the motor to
be aligned.
2. Fit the motor pulley to the shaft end. Tighten the screw.
3. Place the motor on the base and pass the shaft end with pulley
through the belt guard wall. Align the motor and the pulleys
using a straight-edge. Secure the motor to the base by
screws.
6
60 m
4 bar
6 bar
3.5 bar and 5.5 bar
respectively
0 - 50 °C
max. 7.5 m vacuometric
Required motor
output (kW)
H = 4 bar H = 6 bar
ges ges
0.25 0.37
0.33 0.45
0.37 0.55
0.55 0.75
0.55 0.75
0.75 1.1
0.75 1.1
1.1 1.5
0.55 0.75
0.75 1.1
1.1 1.5
Required V-belts*
2 x 10 x 6300
2 x 10 x 670
2 x 10 x 9800
90 2 x 13 x 1075
1 x 13 x 8500
90 3 x 13 x 1120
Discharge-
Suction port
port
G 1 G 1
G 1 G 1
G1 1/4 G 1
G1 1/4 G 1
G1 1/4 G 1
G1 1/4 G 1
G1 1/2 G1 1/4
G1 1/2 G1 1/2
G 1 1/2 G1
G 1 1/4 G1
G 1 1/2 G 1 1/2
Fig. 2 Installation of motor and belt guard
Type
WL 1002 - 3002
WN 201 - 500
4. Fit the V-belt and tighten using the adjusting screw of the
base.
5. Align the rear belt guard wall and tighten the screws.
Fig. 3 WL 1002 - 2402 and WL 2502 - 3002
Cylinder Rated number of
-1
(mm) strokes (min )
33 375
40 375
45 375
50 375
55 280
55 340
75 296
75 296
55 125
65 125
82 125
a
a
6
11