CAT: BFP/VCAR
CMPHR04
U1
U
P
T
IE/CMPHR04/002/2012
1
SHEET: 1/1
CMPH R 04 * * 1 00 1
1
2
3
4
5101
52
00
Q (l/min)
P(bar)
150510
310
320
330
340
350
Q (l/min)
P(bar)
max 5 Nm
max 5 Nm
Ø 40
Ø 26
Ø 26
C
P
S
V
3/4 - 16 UNF
67.7
34.5
50.5
max 81.7
118.1
14.50
15.80
P
T
U
U1
3
10
10
22
24
54.5
54.5
DIRECT ACTING HIGH PRESSURE RELIEF VALVES WITH ONE-WAY CHECK VALVE
HYDRAULIC FEATURES
Max. working pressure 360 bar
Max. Flow 15 l/min
Setting ranges (spring)
1 = > 320 ÷ 360 bar (blue)
One-way check 0.5 bar (standard)
Check valve leakage (0 ÷ 5 drops/min) 0 ÷ 0.25 cm
3
/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 19/17/14
Weight 0.18 kg
Tightening torque
25 ÷ 30 Nm
Cavity (3/4 - 16 UNF) CD018013 (See section 15)
PRESSURE - FLOW (P → T)
HYDRAULIC SYMBOL
Fluid used: mineral based oil with viscosity
32 mm²/s at 50°C.
CMPH = High pressure relief valve
R = With check valve
04 = 3/4 - 16 UNF
ORDERING CODE
0 = With standard check-valve
S = Without standard check-valve
1 = Serial No.
00 = No variants
1 = > 320 ÷ 360 bar (blue spring)
Series
Size
Setting
ranges
Check valve Relief valve
PRESSURE DROPS (P → U)
Setting
Fluid used: mineral based oil with viscosity
32 mm²/s at 50°C.
PRESSURE RELIEF VALVES
Variants
The valve has a combined function in a single cartridge. It consists of a direct
acting maximum pressure valve and a unidirectional check valve.
The relief valve 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.
The spring in the check valve enables the cartridge to be mounted in any
position.
It has a galvanised steel body. The tapered poppet of the relief valve and the
guided ball poppet are made from tempered and ground steel.
00012004
Spare seals kit
C = Screw
P = C + Plug no detachable closing (unremovable version)
S = C + Plug detachable closing
V = Handwheel
Page: 17
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