FLUID POWER SYMBOL
TUCSON
Where measurements are critical request certified drawings. We reserve the right to change specifications without notice.
Umbergaon, Gujarat
C1B 246/5, G.I.D.C. Indl. Estate
tucson@vsnl.com
3D ISOMETRIC VIEW
1
AR16
Specifications
Figures based on: Oil Temp = 40°C Viscosity = 40 cSt
Rated Flow 250 lpm
Max Pressure 350 bar
Cartridge Material
Working parts : Hardened, ground steel
External surfaces : Zinc plated
Weight (Cartridge only)
AR16: 0.170 kg
Cavity Number SAE16-2 (Refer Cavities Section)
Manifold Material
Aluminium (upto 250 bar)
Add Suffix ‘729’ for SG Iron (350 bar)
Torque into Cavity 60 Nm
Mounting Line
Seal Kit Number SKAR16 (Nitrile) SKAR16V (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
1
2
1
2
1-321.A
1
1 5/16-12UNF
17 A/F
HEX ADJUST
5 A/F
41 A/F
2
46
PILOT OPERATED RELIEF VALVE
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 Port 1
(Pressure) 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 Port 2 (Tank)
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
59 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
1-321.B
BASIC CODE
ADJUSTMENT
P: LEAKPROOF SCREW ADJUST
K: KNOB
PORT SIZE
8W: 1 BSP PORTS
OMIT FOR CARTRIDGE
SEAL KIT
N: NITRILE
V: VITON
PRESSURE RANGE
20: 10 to 200 bar. Std setting 100 bar
35: 30 to 350 bar. Std setting 280 bar
AR16 P 6W 35 N
BASIC CODE: AR16 8W
1" BSP PORTS
COMPLETE VALVE
1
2
O 9 THRO'
2 PLACES
Pressure (bar)
Flow (lpm)
0
0 45 90 135 180
75
150
225
300
375
225 270
250 bar
150 bar
50 bar
350 bar
ONLY Body Part Numbers (BSP)
Aluminium
SG Iron
1” Z10060 1” Z10060S
1
2
25
75
7 18
5015
51
25
50
75
BASIC CODE: AR16 10W
1-1/4" BSP PORTS
COMPLETE VALVE
1
2
ONLY Body Part Numbers (BSP)
Aluminium
SG Iron
1” Z10060 1” Z10060S
75
75
77
105
25,6
48
55
57
O9 THRO'
2 PLACES
GAUGE PORT
1/4" BSP
