FLUID POWER SYMBOL
TUCSON
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
1
Umbergaon, Gujarat
C1B 246/5, G.I.D.C. Indl. Estate
tucson@vsnl.com
3D ISOMETRIC VIEW
PILOT OPERATED RELIEF VALVEAR10
Specifications
Figures based on: Oil Temp = 40°C Viscosity = 40 cSt
Rated Flow 65 lpm
Max Setting 350 bar
Cartridge Material
Working parts : Hardened, ground steel
External surfaces : Zinc plated
Weight (Cartridge only)
AR10: 0.195 kg
Cavity Number SAE0-2 (Refer Cavities Section)
Manifold Material
Aluminium (upto 250 bar)
Add Suffix ‘729’ for SG Iron (350 bar)
Torque into Cavity 45 Nm
Mounting Line
Seal Kit Number SKAR10 (Nitrile) SKAR65 V (Viton
®
)
Filtration Level BS5540/4 Class 18/13 (25µ nominal)
Operating Temp -20°C to +90°C (Standard Seals)
Leakage Less than 35 millilitres/min
Viscosity Range 5 to 500 cSt
Application
Pressure Relief valves are used to limit
the pressure in the system as set on
the valve. Pilot Operated Relief Valves
are applicable more in systems where
pressure regulation is needed over
pressure safety. The barrel-piston
assembly of the valve implies that the
valve is not a zero leak valve and
cannot be used for load holding
applications. The valve is ideal for
continuous duty providing accurate
pressure control with constant or
varying flows.
Operation
When the inlet pressure at 1 (Pressure
Port) exceeds the setting of the valve,
the ball unseats causing the pilot
section to open. This results in a small
flow across the orifice in the main
spool. The subsequent pressure drop
moves the secondary spool against a
light spring opening a ring o
f radial
holes in the sleeve and allowing relief
flow to 2 (Tank Port)
Features
Very low pressure rise for any increase
in flow giving accurate pressure
control. Smooth operation due to
presence of a balanced piston.
Hardened working parts ensure a long,
reliable, trouble-
free life. Cartridge
construction gives maximum flexibility
in mounting
1
2
HEX ADJUST
5 A/F
25.4 A/F
17 A/F
7/8-14 UNF
1
2
1
2
1-315.A
33 62 MAX.
PRESSURE CHARACTERISTICS
TO ORDER
T
UCSON
H
YDROCONTROLS
www.tucsonhydrocontrols.com
tucson@vsnl.com
Umbergaon, Gujarat
C1B 246/5, G.I.D.C. Indl. Estate
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
1
Pressure (bar)
Flow (lpm)
1-315.B
BASIC CODE
AR10: Cartridge or Std. Body
AR11: Through Port Body
ADJUSTMENT
P: LEAKPROOF SCREW ADJUST
PORT SIZE
3W: 3/8 BSP PORTS
4W: 1/2 BSP PORTS
OMIT FOR CARTRIDGE
SEAL KIT
N: NITRILE
V: VITON
PRESSURE RANGE
10: 10 to 100 bar. Std setting 50 bar.
20: 10 to 210 bar. Std setting 100 bar
35: 50 to 350 bar. Std setting 280 bar
AR10 P 4W 35 N
BASIC CODE: AR11 4W
1/2" BSP PORTS
COMPLETE VALVE
0 6 12 18 24 30 36 42 48 54 60 66 72
0
45
90
135
180
225
270
315
360
405
450
50 bar
150 bar
250 bar
350 bar
BASIC CODE: AR10 3W / AR10 4W
3/8" 1/2" BSP PORTS
COMPLETE VALVE
1
2
O 7 THRO'
2 PLACES
ONLY Body Part Numbers (BSP)
Aluminium
SG Iron
3/8” Z10221 3/8” Z10221S
1/2”
212
1
/2”
Z102
1
2
S
ONLY Body Part Numbers (BSP)
Aluminium
SG Iron
1/2” Z10248 1/2” Z10248S
18,7
65
17,5
35
39,5
65
7,5 50
48
G
2
1
18,5
34
56
52
70
16
16
50
25
50
367
1/4" BSP
GAUGE PORT
O 9 THRO'
2 PLACES
1
2
1
G