نام محصول:
دریچه
نام انگلیسی:
Plug valve VBCB 380
برند:
Oleoweb Srl
مشخصات:
SINGLE COUNTERBALANCE VALVE FOR OPEN CENTER VBCB
OVERCENTER VALVE SIMPLE EFFECT NOT COMPENSATED WITH BANJO BOLT
Thanks to the Oleoweb VBCB counterbalance valves it is possible to manage suspended loads and control their movement by eliminating vibrations or sudden and dangerous lowerings. The banjo bolt on the body valve simplifies the installation and makes the action of the valve more effective.
The single overcenter valves of the VBCB series are designed to ensure the stability in the working position of a hydraulic actuator with suspended load, and to control its movement in only one direction (usually the descent phase), leaving the opposite side powered by free flow; thanks to the housing for a banjo bolt on the valve body, they can be installed directly on the cylinder head, simplifying the circuit in favor of assembly times, and optimizing performance thanks to the containment of the hysteresis phenomenon. The fitting bolt must be installed on the cylinder return line. By feeding the line opposite the load, the pilot line manages the partial opening of the descent channel allowing control of the actuator movement and avoiding the phenomenon of cavitation thanks to the action of contrasting the gravitational force. A calibrated hole dampens the pilot signal so that the valve opens and closes proportionally, avoiding load oscillations. The VBCB single overcenter valve also works as an antishock valve in the presence of pressure peaks caused by impacts or excessive loads. For this to be possible, the return line on the distributor must be connected to the drain.
توضیحات:
Type
plug
Operation
hydraulic
Function
for control, pilot, drain
Body$
in-line
Applications
actuator, cylinder
Associated function
balancing, feeding, load
DN
9.525 mm(0.375 in)
Pressure
Min.: 0 bar(0 psi)Max.: 40 bar(580.2 psi)
Temperature
Min.: -20 °C(-4 °F)Max.: 80 °C(176 °F)
Flow rate
Min.: 0 l/min(0 us gal/min)Max.: 40 l/min(10.57 us gal/min)
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