CAT: BFP/VCAR
RVLV1
IE/RVLV1/001/2011 SHEET: 1/1
4
Q (l/min)
P(bar)
0
2
4
6
8
0
20 40
60 80 100
120 140
2 1
1
2
X
30
1
2
X
21.5
40.5
52
M27 x 1.5
A
A= 1/4 BSP (RVLV1..2270)
SAE 7/16 20UNF (RVLV1..2150)
PUMP UNLOADING VALVES
HYDRAULIC FEATURES
Max. working pressure 380 bar
Max. Flow 140 l/min
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
Weight 0.1422 kg
Tightening torque 22 ÷ 26 Nm
Cavity (M27x1.5) CN059001 (See section 15)
HYDRAULIC SYMBOL
ORDERING CODE
Code Type
RVLV1202270
Pump unloading valve (A = 1/4 BSP)
RVLV12021S0
Pump unloading valve (A = SAE 7/16 20UNF)
PRESSURE DROPS
ONE-WAY CHECK VALVES
Fluid used: mineral based oil with viscosity
46 mm²/s at 40°C.
The normally-closed 2-way 2-position valve is used to connect a normally
pressurised branch to the outlet in order to allow fluid to flow through the
valve from 2 to 1.
Tapered poppet in tempered and ground steel, released when the pilot branch
X is connected to the outlet.
It has a galvanised steel body.
00012021
Spare seals kit
Page: 53
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