CAT: BFP/VCAR
CMP-MH
T
P
IE/CMP_MH/001/2011
1
SHEET: 1/1
20 ÷ 110 bar 50 ÷ 220 bar 150 ÷ 310 bar
Q (l/min)
P(bar)
0
25
50
75
100
125
150
0
510
15 20 25
30 35 40
0
510
15 20 25
30 35 40
Q (l/min)
P(bar
)
0
50
100
150
200
250
300
0
510
15 20 25
30 35 40
Q (l/min)
P(bar)
0
60
120
180
240
300
360
28÷32 Nm
13
24
4
25.5max 60
Ø
Ø
20.1
14
15.8
M 22 x1.5
P
T
A
DIRECT ACTING PRESSURE RELIEF VALVES (FOR POWER PACKS SERIES MH)
HYDRAULIC FEATURES
PRESSURE-FLOW RATE
HYDRAULIC SYMBOL
&LUIDUSEDMINERALBASEDOILWITHVISCOSITYMM§SATª#
Max. opening pressure 310 bar
Setting range:
Spring E
Spring F
Spring G
20 ÷ 10 bar
50 ÷ 220 bar
150 ÷ 310 bar
Max. Flow 40 l/min
Hydraulic fluid DIN 51524 Mineral oils
Fluid viscosity 10 ÷ 500 mm
2
/s
Fluid temperature -25°C ÷ 75°C
Ambient temperature -25°C ÷ 60°C
Max. contamin. level class with filter ISO 4406:1999 - class 21/19/16
Weight 0.25 kg
Tightening torque see draw
Cavity (M22x1.5) CN047012 (See section 15)
The minimum permissible setting pressure depending on the spring: see curves below
PRESSURE RELIEF VALVES
ORDERING CODE
Pressure
identification
Code
Identification
(see draw)
Setting
range
Pressure increasing at
each turn of screw
26000025.000
E 20 ÷ 110 bar 32 bar ± 13,5%
26000026.000
F 50 ÷ 220 bar 63 bar ± 10%
26000027.000
G 150 ÷ 310 bar 71 bar ± 12,5%
The direct acting relief valve limits the pressure in a hydraulic circuit.
It raises the safety level by making it impossible for the plant operators to set
a higher pressure rating, than that specified in the catalogue. It has a pack
spring with a mechanical stop.
It has a galvanised steel body. The guided ball poppet is in tempered and
ground steel.
Page: 20