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The CVI25D20M50 is a cartridge valve insert produced by Vickers for the Cartridge Valves series and is intended to direct flow in hydraulic automation manifolds. It fits cavities sized NG 25 and operates as a normally open element, allowing passage until external control closes the path. Maximum operating pressure is 350 bar, giving it capacity for high-pressure circuits. An insert ratio of 1:2 sets the relationship between pilot and work areas, while the standard leakage category indicates typical internal bypass levels. Compatibility with water glycol, water-in-oil emulsions, and petroleum oil permits use across common industrial fluids.
Maximum flow is 590 L/min, supporting large volume transfer in main lines. Overall dimensions are defined by a length of 71.882 mm and equal height and width of 44.958 mm, aiding block layout planning. Buna-N seals provide the required media resistance. The valve demands fluid cleanliness of 18/16/13 to limit particle-induced wear. Approved operating temperatures range from −20 °C to 70 °C, allowing dependable service in cold starts and warm duty cycles.
Fluid Cleanliness
18/16/13 micron
Fluid Compatibility
Water Glycol, Water-in-Oil Emulsions and Petroleum Oil
Insert ratio
1:2
Leakage Type
Standard
Max Flow
590 L/min
Max Operating Pressure
350 bar
Nominal Size
NG 25
Normal Function
Normally Open
Product height
44.958 mm
Product length
71.882 mm
Product width
44.958
Seal Material
Buna-N
Valve type
Cartridge valve insert
Working temp max
70 C
Working temp min
-20 C
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