Danfoss | 83012986
83012986
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The 83012986 pump belongs to the Open Circuit Piston Pumps series produced by Danfoss and delivers variable flow for hydraulic automation systems. It operates with pressure-compensated and load-sensing control so system pressure is held while flow adapts to demand. A displacement of 74 cc per revolution establishes the volume moved each shaft turn, and both the pressure compensator and the maximum continuous limit are set to 310 bar for stable high-pressure service. Load sense feedback is calibrated to 28 bar to reduce standby energy loss. Clockwise rotation matches common drivetrain layouts. There is no choke orifice in the control circuit, while a standard gain orifice governs the response rate of the compensator.
A radial endcap supports the rotating group and mates with an SAE-C 4-bolt front flange for direct engine or motor mounting. SAE O-ring housing ports provide leak-free manifold connections. The inlet uses a 4-bolt split flange with a 2 inch opening to minimize suction losses, and the outlet is a 4-bolt split flange with a 1 inch port to handle full discharge pressure. Power is transmitted through a 14-tooth shaft cut on a 12/24 pitch, and a single Viton shaft seal retains the working fluid. These mechanical features round out the unit’s compatibility with open-circuit installations that rely on stable pressure and proportional flow.
Technical Specifications
Choke Orifice
None
Control Type
Pressure Compensated / Load Sensing
Displacement
74 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 in Port
Load Sense Setting
28 bar
Max Continuous Pressure
310 bar
Outlet Port
4-Bolt Split Flange, 1 in Port
Pressure Comp Setting
310 bar
Rotation
Clockwise
Shaft Pitch
12/24 pitch
Shaft Seal
Single Viton
Shaft Teeth
14 tooth
1620 Old Apex Road
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