CAT: BFP/VCAR
M
R
E
C
21
D
Q (l/min)
P(bar)
0
1
2
3
4
5
0
10 20
30 40 50
60 70
80
400
600
800
VUI
IE/VUI/003/2015 SHEET: 1/1
VUI ** 00
4
12
C F (mm) L (mm)
1/4 BSP 7 3
3/8 BSP 9 3.5
1/2 BSP 12 4.5
ØD
L
L1
L 2
L max
Ø C
Ø F max
118°
1.6
ONE-WAY CHECK VALVES
HYDRAULIC FEATURES
Max. 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
PRESSURE DROPS
Fluid used: mineral based oil with viscosity
32 mm²/s at 40°C.
VUI = Check valve
ORDERING CODE
Series
Size Opening pressure
00 = Standard - 0.5 bar
ONE-WAY CHECK VALVES
HYDRAULIC SYMBOL SEAL
KEY FOR TIGHTENING VALVE
Code
key
For
valve
D
(mm)
L
(mm)
L1
(mm)
L2
(mm)
AVA174
VUI0400 11.4 120 105.5 100
AVA176
VUI0600 14.9 120 105.5 100
AVA178
VUI0800 18.6 120 105.5 100
04 = 1/4 BSP
06 = 3/8 BSP
08 = 1/2 BSP
C
Flow
max
(l/min)
Pressure
max
(bar)
M
(mm)
R
(mm)
D
(mm)
E
(mm)
Tightening
torque
(Nm)
Weight
(kg)
1/4 BSP 20 350 8.5 2.2 8.5 4,4 6 0.005
3/8 BSP 50 350 10.8 3 11.3 6 6 0.011
1/2 BSP 80 350 14.2 3.8 12.7 6.5 10 0.019
The unidirectional check valve allows oil to flow in only one direction. The
guided half-ball seal is made of tempered and ground steel.
The spring allows the valve to be mounted in any position.
Steel body.
Page: 46
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