Danfoss | 83012451
83012451
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The 83012451 pump belongs to the Open Circuit Piston Pumps series and is produced by Danfoss for hydraulic automation in mobile or industrial equipment. It delivers a displacement of 100 cc per revolution so the system designer can size flow to actuator demand. A pressure-compensated and load-sensing control adjusts swashplate angle to maintain flow while limiting power draw. The compensator is preset to 280 bar to restrict outlet pressure, and the load-sense circuit references a 25 bar differential to keep the unit on stroke only when needed. Continuous operation is permitted up to 310 bar, allowing use in high duty cycles. Clockwise rotation matches common engine drives, and the SAE-C four-bolt front flange provides a standard interface for mounting. A single Viton shaft seal contains case oil and tolerates higher temperatures common in closed engine compartments.
The radial endcap configures the pump for compact hose routing, while an SAE-C 14-tooth auxiliary flange lets users stack a secondary pump or power take-off without extra adapters. No choke orifice is installed, which promotes fast compensator response, and the gain orifice remains at the standard size to balance stability with responsiveness. All housing ports use SAE O-ring connections to minimize leakage during thermal cycling. The inlet connection is a four-bolt split flange with a 2.5 inch port and 0.5 inch threaded holes that accepts high-flow suction lines, and the outlet terminates in a four-bolt split flange with a 1.25 inch port and the same thread size for pressure lines. Together, these port sizes support the generated flow while keeping line velocities within recommended limits.
Technical Specifications
Auxiliary Flange
SAE-C 14-Tooth
Choke Orifice
None
Compensator Setting
280 bar
Control Type
Pressure Compensated / Load Sensing
Displacement
100 cc/rev
Endcap Type
Radial
Front Flange
SAE-C 4-Bolt Flange
Gain Orifice
Standard
Housing Ports
SAE O-Ring Ports
Inlet Port
4-Bolt Split Flange, 2.5 In Port, 0.5 In Threads
Load Sense Setting
25 bar
Max Continuous Pressure
310 bar
Outlet Port
4-Bolt Split Flange, 1.25 In Port, 0.5 In Threads
Rotation
Clockwise
Shaft Seal
Single Viton
1620 Old Apex Road
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