CAT: BFP/VCAR
CVS20
P(in) P(out)
T
Y
IE/CVS20/001/2011 SHEET: 1/1
CVS 20 * * ** 1
1 = CVS20.1.. - 2 = CVS20.2.. - 3 = CVS20.3..
2
3
2
1
Q (l/min)
P(bar)
0
0
15
30 45 60 75 90
5
10
15
20
25
3
2
1
Q (l/min)
P(bar)
0
0
15
30 45 60 75 90
50
100
150
200
250
300
17
5
24
Ø 34.5
Ø 26
Ø 17
Ø 19
M22 x 1.5
61.5 max
70 max
58.5
T
P
(out)
P(in)
M
C
max 15 Nm
SEQUENCE VALVES - PILOT OPERATED
HYDRAULIC SYMBOL
HYDRAULIC FEATURES
CVS = Sequence valve
ORDERING CODE
Series
Size
Adjustment
20 = M22 x 1,5
C = Screw
M = Plastic knob
1 = Serial No.
00 = No variants
V1 = Viton
SEQUENCE, PRESS.REDUCING AND UNLOADING
Setting
ranges
1 = 60 bar (white spring)
2 = 120bar (yellow spring)
3 = 250 bar (green spring)
Max. pressure 350 bar
Setting range:
Spring 1 (white)
Spring 2 (yellow)
Spring 3 (green)
max 60 bar
max 120 bar
max 250 bar
Max. Flow 90 l/min
Max. draining on port T 0.5 ÷ 0.7 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 19/17/14
Weight 0.25 kg
Tightening torque 30 ÷ 40 Nm
Cavity (M22 x 1.5) CN047002 (See section 15)
The minimum permissible setting pressure depending on the spring: see curves.
MIN.SETTING PRESSURE PRESSURE-FLOW RATE
Fluid used: mineral based oil with viscosity 46 mm²/s at 40°C.
Variants
The pilot-operated sequence valve feeds a secondary branch of a circuit when
a set pressure value is reached, guaranteeing minimum variation of the set
pressure with flow alterations of up to 90 l/min.
Slight leakage is tolerated for this type of valve.
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 pilot poppet and cylindrical
main plunger are made from tempered and ground steel.
00012013
Spare seals kit
Page: 32
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