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The F3-CG-10-B-30 valve is built by Vickers and belongs to the Relief Valves series. It is used in hydraulic automation to limit system pressure and protect components. A balanced piston construction minimizes the influence of inlet pressure on opening force. The valve performs a relief function, venting fluid to tank when the set point is reached. Subplate mounting allows quick replacement within a manifold block. With a nominal size of 1-1/4 in (Size 10), it accommodates large flow passages, and the standard rated flow reaches 454 l/min (120 USgpm) to suit high-capacity circuits. The hydraulic circuit can use mineral oil or fire-resistant fluids designated F3, and fluorocarbon seals of the same F3 rating maintain compatibility with those media.
Mating with a CGM-10S-20 subplate aligns the passages and fixes the valve in place. The adjustable spring permits a minimum set pressure of 8.5 bar (125 psi) and can be increased to 70 bar (1000 psi). The assembly withstands a continuous operating pressure of 210 bar (3000 psi), and tank return lines may see peak transients up to 155 bar (2250 psi). Correct seating depends on a mounting pad flatness held within 0.0005 in (0.013 mm), while a surface finish of 63 µin (1.6 µm) prevents leakage at the gasket interface. These dimensional controls ensure consistent pressure relief performance in demanding industrial systems.
Construction Type
Balanced Piston
Fluid Compatibility
Mineral Oil, Fire-Resistant Fluids (F3)
Mating Subplate
CGM-10S-20
Max Adjustable Pressure (b)
70 bar (1000 psi)
Max Operating Pressure
210 bar (3000 psi)
Max Tank Line Peak Pressure
155 bar (2250 psi)
Min Adjustable Pressure (b)
8.5 bar (125 psi)
Mounting
Subplate (Manifold)
Mounting Pad Flatness
0.0005 in (0.013 mm)
Mounting Pad Surface Finish
63 µin (1.6 µm)
Nominal Size
1-1/4 in (Size 10)
Rated Flow (standard)
454 l/min (120 USgpm)
Seal Material
Fluorocarbon (F3)
Valve Function
Relief
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