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The CG5106CCWB70 relief valve is produced by Vickers as part of the Relief Valves series. It protects hydraulic systems by opening at a preset value and routing excess oil to tank. The unit performs pressure relief through a solenoid-controlled mechanism and is classified as valve size 06. It fastens to a subplate or manifold, and its orientation is unrestricted, allowing flexible installation. Rated flow reaches 227 l/min (60 US gpm) without loss of stability. Maximum operating pressure is 210 bar (3000 psi), while the tank line can accept surges up to 155 bar (2250 psi). A .4375-20 UNF-2B gauge port thread is provided for attaching pressure gauges during commissioning or maintenance.
Electrical details guide response speed and duty cycle. The coil’s lead wires use Class H insulation so they tolerate high winding temperatures. With alternating current, the valve can cycle 4 times per second, completes a spool shift in 12 ms, and the spring pushes it back in 22 ms after de-energization. Under direct current, permissible cycling rate is 3 Hz; the shift duration rises to 30 ms and the spring return takes 45 ms. These timings give predictable relief behavior in automated hydraulic manifolds where rapid pressure changes must be managed reliably.
Control Type
Solenoid Controlled
Gauge Port Thread
.4375-20 UNF-2B
Lead Wire Insulation
Class H
Max Cycling Rate (ac)
4 Hz
Max Cycling Rate (dc)
3 Hz
Max Operating Pressure
210 bar (3000 psi)
Max Tank Line Surge
155 bar (2250 psi)
Mounting Orientation
Unrestricted
Mounting Type
Subplate/Manifold
Rated Flow (max)
227 l/min (60 USgpm)
Spool Shift Time (ac Energized)
12 ms
Spool Shift Time (dc Energized)
30 ms
Spring Return Time (ac)
22 ms
Spring Return Time (dc)
45 ms
Valve Function
Pressure Relief
Valve Size
06
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