Hydraulic Internal Vibrators for Big Dams
VH-15 SERIE.
Hydraulic circuit description
The hydraulic circuit design offers the possibility of adjusting the VH-15 vibrators frequency, through a flow regulator valve, compensated, that maintains a constant flow, independently from the pressure changes.
The vibrator optimum working frequency is settled between 7500-7800 r.p.m.
Oil is filtered in the pressure line, easily accessible and in a handy way for the microfilter change (10m m).
If the system is to be set on a shovel or bulldozers, the circuit can also be equipped with an extra pump and cooling-system. The whole system is perfectly furnished with flexible hose with a pressure margin, couplings with metalloplastic seal-rings and compact distributor block in treated aluminium.
Hydraulic motor
The hydraulic motor in the circuit, specially manufactured for this application, allows high speed and high pressure levels, fully appropriate for continuous works.
Control instruments
The whole hydraulic circuit is entirely checked through a control manometer in the cab, valves and pedals for control allowing a simple working for the whole system.
Special devices
URBAR can provide the system equipped with a special device for blocking which prevents the arm from accidentally dropping while in the paused position.
On the other hand, it is also possible to provide separately a hydraulic device, very useful to make safely the necessary tests in a repair workshop.
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