SKF P Series - Page 13

3. Design and function Page 13
EN
Table 4. Model designs
Lubricant Type
designation
Type of
actuation
Pressure
relief valve
Pressure
regulating
valve
Delivery
rate in
cm³/stroke
Operatin
g
pressure
P2 in bar
Actuating
pressure
P1 in bar
Wall
mounted
Reservoi
r
mounted
Reservoir
capacity
in l
Grease
NLGI
Grade
Oil viscosity
in mm²/s
Comments
P-26-2
P-27-2
P-36-3
P-37-3
manual
manual
hydraulic
hydraulic
yes
yes
yes
yes
-
-
-
-
7
7
7
7
25
1)
25
1)
15 - 35
15 - 35
-
-
15 - 35
15 - 35
yes
-
yes
-
-
yes
-
yes
-
-
-
-
-
-
-
-
15-150
15-150
15-150
15-150
1)
Achievable
pressure depends
on manual force
exerted
P-38-4
P-66-2
P-67-2
P-68-3
hydraulic
manual
manual
manual
yes
yes
yes
yes
-
-
-
-
7
30
30
30
15 - 35
25
1)
25
1)
25
1)
15 - 35
-
-
-
-
yes
-
-
-
-
yes
-
0.4
-
-
1.5
-
-
-
-
15-150
15-150
15-150
15-150
1)
Achievable
pressure depends
on manual force
exerted
P-76-2
P-77-2
P-78-3
P-86-2
P-87-2
hydraulic
hydraulic
pneumatic
pneumatic
pneumatic
yes
yes
yes
yes
yes
-
-
-
-
-
30
30
30
30
30
15 - 35
15 - 35
15 - 35
25
25
15 - 35
15 - 35
15 - 35
6.5 - 15
6.5 - 15
yes
-
-
yes
-
-
yes
-
-
yes
-
-
1.5
-
-
-
-
-
-
-
15-150
15-150
15-150
15-150
15-150
P-88-3
P-156
P-189
pneumatic
manual
pneumatic
yes
yes
yes
-
-
-
30
15
7
25
25
1)
4.8 x P1
6.5 - 15
-
3.5 - 10
-
yes
-
-
-
-
1.5
-
0.85
-
-
-
15-150
15-150
15-150
1)
Achievable
pressure depends
on manual force
exerted
P-276
P-278-3
P-289
hydraulic
hydraulic
pneumatic
yes
yes
yes
-
-
-
50
50
10
20 - 35
20 - 35
4.9 x P1
35 - 150
2)
35 - 150
2)
3.5 - 10
yes
-
-
-
-
-
-
1.5
1.8
-
-
-
15-620
15-620
15-620
2)
For pressures
above 35 bar,
install a pressure
regulating valve at
the end of the
system.