Two different solutions are available:
– Oil/Water motorized constant pressure system
– Air/Water interface system with air pressure regulator
(to be connected to a pneumatic compressor)
A144
OIL/WATER CONSTANT PRESSURE SYSTEM
This unit provides a constant pressure from 0 to 3500 kPa by using
a motorized hydraulic pump, an oil/water interchange tank, ram/
spring, valves and connectors, high viscosity oil.
Test pressure precision gauge, range 0-3500 kPa is supplied. To be
noted that the maximum tolerable pressure in the cell is 1700 kPa.
Power supply: 230V 1ph 50Hz
Dimensions: 320x320x410 mm
Weight: 20 kg approx.
S350N
AIR/WATER BLADDER PRESSURE SYSTEM
It provides a water pressure up to 1700 kPa. Simple, practical and
extremely accurate system used to select test pressures, it can also
offer the possibility to further system expansions.
The use of deaerated water is recommended. It must be connected
to a pneumatic compressor as mod. S351N or mod. V207.
The cell set is equipped with an inlet high pressure air valve and
2 outlet valves for pressurized water and water.
Dimensions: 270x300x425 mm
Weight: 9 kg approx.
ACCESSORIES
S350-05N PRESSURE REGULATOR, high accuracy model, to preset
and control the work pressure, complete with two outlet
air valves.
S355-01 FILTER UNIT (water trap) composed by filtering device
and interchangeable cartridge, used to collect moisture.
SPARE
S350-04 Membrane for air/water cell.
Pack of 2 pieces.
S351N
LABORATORY AIR COMPRESSOR
It reaches a maximum pressure of 15 bar and it must be used with
the air/water interface cell.
Sucked air: 84 litre/minute.
Reservoir capacity: 3 litres.
Power supply:
230V 1ph 50Hz 0.75HP
Dimensions:
460x300x470 mm
Weight: 22 kg approx.
As an alternative:
V207
LABORATORY AIR COMPRESSOR
It can be used when lower cell pressures are required, as an alternative
to mod. S351N.
Max. pressure: 10 bar
Reservoir capacity: 50 litres
Recommended for continuous
working pressure up to 750 kPa
Power supply:
230V 1ph 50Hz
Weight: 40 kg approx.
S355
DE-AIRING TANK 20 LITRES CAPACITY
It produces de-aired water when connected to the vacuum pump. It
is a perspex tank with an inlet water valve and an outlet air valve.
Tank capacity: 20 litres.
Dimensions:
320x320x520 mm
Weight: 15 kg approx.
ACCESSORIES
V205 VACUUM PUMP To produce vacuum up to of 0.1 mbar
(see p. 597)
V205-10 – V205-12 VACUUM REGULATOR It is supplied with
vacuum gauge, control valve, suction filter and
moisture trap.
V230-03 Rubber tube. Suitable
for vacuum, 3 m
Note:
Other models of vacuum
pumps described at p. 597
S340
DIAL GAUGE UNITS 4 VALVES
TO MEASURE PRESSURE (0-1700 KPA)
4 inlet/outlet null displacement valves are supplied with the dial
gauge. Used to measure water pressure as cell pressure or pore
pressures. The dial gauge is set in a metallic support.
Pressure range: 0-1700 kPa.
Dimensions: 410x350x110 mm
Weight: 6 kg approx.
S345
SCREW PUMP
It has to be connected to the pressure dial gauge unit and it is used
to control water pressures by means of small screw rotations. It can
decrease or decrease pressures as required.
Weight: 3 kg approx.
S348
DISTRIBUTION UNIT
It is provided with 5 inlet/outlet valves with null variation of volume.
All valves are connected to an aluminium support. It is used to
deliver pressurized water to different lines.
Dimensions: 200x200x55 mm
Weight: 3 kg approx.
S350-01 Two-way distribution valve for air or water.
S342-01
2 WAYS PRESSURE PANEL
This pressure panel is designed to distribute the water pressure used
in soil laboratory applications, such as automatic triaxial systems.
The panel is constituted by two pressure lines fitted with high
accurate regulators and pressure valves.
Dimensions: 416x430x181 mm
Weight: 10 Kg approx.
S342-02
3 WAYS PRESSURE PANEL
Identical to the S342-02 but fitted with three pressure lines.
Dimensions: 460x430x181 mm
Weight: 13 Kg approx.
ACCESSORY
S342-05 DIGITAL GAUGE to be fitted on S342-01 and S342-02.
Resolution: 1 kPa
SPARES
S342-04 Pressure air regulator, 10 bar
S325 Nylon tube Ø 4×6 mm
