Pressure control valves
Performance graph
Oil viscosity: 46 cSt (217 SSU) Fluid temperature: 40 °C
3.04.001.1
spring 1
spring 2
Flow from 1 to 3 Flow from 2 to 1
spring 0
TCGE-0524-IR00www.eltfluid.com
For general conditions and terms of use see page S.005.
This document is Elt Fluid property and therefore data or technical specification can
not be reproduced.
Eltfluid also reserves the right to modify all the above data, at any time.
Drawing Hydraulic symbol
P08R-32
Pressure reducing and relieving valve, differential
area, spool type with Hydrodynamic Damping
Description
Pressure reducing and relieving valve, differential area, spool type,
which can be adjusted across a prescribed range by changing the
spring load. Designed for use as a pressure-limiting device in de-
manding applications.
Operation mode
Flow is allowed to pass from port 2 to 1, till the pressure in port 1 exceed
the pressure setting, the spool of the valve acts to restrict the inlet flow at
port 2, in order to keep constant the pressure value at 1. If pressure at 1
exceeds the setting induced by the spring, pressure from 1 is relieved to 3.
The Hydrodynamic Damping ensures excellent stability through the
entire flow and pressure range.
GENERAL DATA
Weight: 0,205 kg (0,45 lbs).
Ambient temperature range: -30 °C a 60 °C with seals standard (NBR).
Max proof pressure: 350 bar (5.075 psi).
Flow Max: 12 l/min (3,17 gpm).
Cartridge materials: high strength steel, internal parts hardened and
grinding.
TECHNICAL DATA
HYDRAULIC
Max. pressure reduced in 1: 210 bar (3046 psi)
Max. working pressure in 2: 350 bar (5.000 psi)
Max. working pressure in 3: 25 bar (362 psi)
[pressure on port 3 to be added to setting value]
Flow rate: See performance graph
Fluid:
Viscosity:
Mineral based oil
From 15cSt to 250 cSt
Leakage:*: 100 cc/min
P max. 350 bar (5.000 psi)
Standard seals: O-ring NBR Seals Polyurethane
Cavity: SCN0830
Installation torque: 27 Nm
Installation torque nut Hex 10: 4 Nm
Max contamination level: NAS 8 ISO 4406 19/17/14
Fluid temperature range: From -20 °C to +80 °C
Seals kit std.: 5AG0021
*Note: The leakage are to be considered at a pressure equal to 80% of the setting request.
0
bar - psi
l
p
m -
gp
m
0
3.2
1.6
0
1.6
70
140
210
1015
2030
3046
12
6
0
6
12
3.2
None (std. Hex
socket srew)
Adjustment options
Spring setting
A- Aluminium
Material std. housing
S- Steel
Y- Polyurethane
Inches
Millimeters
Dimensions
For other options
contact Sales dept.
Seals
--
--
None (std. only cartridge)
2B- 1/4” BSP
3S- SAE 8
3B- 3/8” BSP
2S- SAE 6
Housing size ports
None (std. NBR+Polyurethane)
T-Tamper proof
*Note: Settings are performed at a flow rate
of 4 l/min.
T- Tamper Proof
H - Knob with
locking wheel
Valve Setting*
None (Valve not set)
S…: setting in bar
in multiples of 5
Range
bar-(psi)
Pressure increase
bar/turn (psi/turn)
0
5-30 bar
(72-435 psi)
6,4 bar
(92,82 psi)
1
20-100 bar
(290-1.450 psi)
19,4 bar
(281,37 psi)
2
50-210 bar
(725-3.045 psi)
34,4 bar
(498,93 psi)
STANDARD HOUSING
Ordering code: See page 9.02.002
Material*: Aluminium/Steel
Max working pressure for aluminum body: 210 bar
Max working pressure for steel body: 350 bar
*Note: To correctly select the material, in relation to application, see page S.001.
H-Knob with
locking wheel
3.04.001.2TCGE-0524-IR00
Ordering code
Elt Fluid S.r.l.
Via Ganapini, 15/2
Loc. Felina 42035
Castelnovo ne’ Monti (RE) ITALY
mail: info@eltfluid.com
P.IVA/C.F 02573790355
P08R-32
P08R-32
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