Vickers | 4CKKT50-3-S-3-24
4CKKT50-3-S-3-24
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The 4CKKT50-3-S-3-24 is a check valve produced by Vickers for the Check Valves series, intended to control reverse flow and maintain line pressure stability in hydraulic automation systems. It installs as a screw-in cartridge, so mounting is completed directly into a manifold cavity identified as A12744 and no external body ports are required because the port type is cartridge only. Pilot-operated functionality lets the valve open when pilot pressure reaches one-third of the load pressure; this 3:1 pilot ratio reduces actuation force and prevents premature opening. Four valve ports give the designer flexibility to tie multiple circuit branches to a single insert. A rated flow of 25 L/min establishes the maximum continuous volume the valve can pass without excessive pressure drop, while a maximum operating pressure of 300 bar defines the upper limit for system pressure. The internal relief setting of 240 bar provides a secondary path to protect downstream components if pressure spikes occur.
Leakage of 0.3 cc/min in the closed position helps the assembly hold pressure during standby periods and minimizes energy loss. A recommended filtration level of 18/13 keeps particulate contamination low enough to prevent spool or seat damage. Buna-N seals resist common petroleum-based fluids, and the presence of a pilot piston seal further isolates the pilot chamber from main flow to improve responsiveness. Overall dimensions of 86.106 mm in length with both height and width at 25.400 mm allow the valve to fit densely populated manifolds without clearance issues.
Technical Specifications
Cavity
A12744
Height
25.400 mm
Installation Type
Screw-In Cartridge
Leakage
0.3 cc/min
Length
86.106 mm
Max Operating Pressure
300 bar
Number Of Valve Ports
4
Operation
Pilot Operated
Pilot Piston Seal
Yes
Pilot Ratio
3:1
Port Type
Cartridge Only
Rated Flow
25 L/min
Recommended Filtration Level
18/13
Relief Setting
240 bar
Seal Type
Buna-N
Width
25.400 mm
1620 Old Apex Road
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