Page 172 - Single-line automatic lubrication systems

Pressure sensor

DSB1

Pressure sensors

Description
Technical data
SKF pressure switches of product series DSB are mechanical
piston pressure switches that are specially designed for use with Function principle digital pressure switch
NLGI 1-2 greases. The location of the actuating piston inside the Lubricant grease NLGI 1, 2
Operating temperature –25 to +80 °C; –13 to +176 °F
pressure switch housing helps to ensure a continuous exchange of Operating pressure max. 300 bar; 4 350 psi
grease around the measuring point (pressurization point between Operating voltage max. 30 V AC; max. 36 V DC
Operating current max. 50 mA, min. 1 mA
grease and actuating piston). This reliably prevents the same grease Breaking capacity max. 1,2 VA
from being pressurized repeatedly, which could cause grease bleed- Mechanical service life 10 5 switching cycles
ing (separation of the soap skeleton of the grease from the stored Pressure port G 1 /4 (F)
oil). Pressure switches of product series DSB are designed for Electrical connection connector socket 3+PE:
DIN EN 175 301-803 A
corrosivity category C3 or C5M per ISO 12944. cable:
∅ 4.5 to 7 mm; ∅ 0.177 to 0.275 in
Switch type micro switch
Features and benefits Contact type change-over
Switching pressure range 20 to 300 bar; 290 to 4 350 psi;
• Adaptable to VR lubricant metering devices due to same
increasing and decreasing
hole pattern, wall distance and connections Materials:
• Micro switch is designed as a change-over switch; can be Housing aluminum, anodized
used as both a normally closed contact (NC) and a normally Contact silver alloy, hard gold plating
Protection class
IP 65; DIN EN 60529
open contact (NO) Dimensions depending on model
• Available for rising and falling pressures from min. 60 × 105 × 76 mm;
max. 150 × 153 × 76 mm;
20 to 300 bar in 10-bar increments min. 2.36 × 4.13 × 2.99 in
• No grease bleeding at measuring point max. 5.90 × 6.02 × 2.99 in
Mounting position any
Pressure switch permits continuous lubricant flow Certification Germanischer Lloyd (GL)
without dead space
• Suitable for use with unstable greases with a tendency
to separate into soap and oil under high pressure
NOTE
Applications Further technical information, technical drawings,
• Machine tools accessories, spare parts or product function descriptions
• Printing machines available on SKF.com/lubrication:
• Wind 1-1701-EN
• Vehicle 3D
• Steel and heavy industries
skf-lubrication partcommunity com/3d-cad-models

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