T7DD/T7DDS series Double vane pump
T6 series vane pump models: T6C, T6D, T6E,T6CC, T6DC, T6EC,T67DBB, T67DCB, T6DCC, T67DDBS, T6DDCS, T67EDB(S), T6EDC(S), etc.
T7 series vane pump models: T7B, T7BS, T7D, T7E,T7DB, T7DC, T7DBB, T7DCB, T7DCC, T7DDB, T7EDB, etc.
T6 series vane pump models: T6C-003 to T6C-031, T6D-014 to T6D-050, T6E-042 to T6E-085, etc.
T7 series vane pump models: T7B, T7BS, T7D, T7E, etc.
T6 series double pump model: T6CC, T6DC, T6EC, etc.
T7 series double pump model: T7DB, T7DC, etc.
T6 series triple pump models: T67DBB, T67DCB, T6DCC, T67DDBS, T6DDCS, T67EDB(S), T6EDC(S), etc.
T7 series triple pump models: T7DBB, T7DCB, T7DCC, T7DDB, T7EDB, etc.
Parker T7DD/T7DDS double pump specifications and technical analysis：
1. Model structure and technical parameters
Typical model example
T7DDS-E38-E31-1R01：
E38-E31: Double pump displacement combination (38 cc/rev + 31 cc/rev).
1R01: Flange installation configuration (standard direction), the shaft end is a flat key or a 1:10 taper keyway.
Sealing code: Such as A1M0, it means NBR seal (resistant to mineral oil-based hydraulic oil).
T7DDS-E42-E28-1R00-A1M0-NOP：
E42-E28: Displacement combination (42 cc/rev + 28 cc/rev).
NOP: It may be a special customization option (such as servo control).
Core performance parameters
Item value remarks
The maximum working pressure is 300 bar (double pump configuration), the peak pressure of a single pump can reach 320 bar
Speed range 600~3600 rpm (industrial use) automotive models support a wider range
Displacement range 5.8~268.7 cm3/rev is divided into B/E series, covering small flow to large flow
Volumetric efficiency ≥92% (at 1800 rpm), typical mechanical efficiency is 0.94
2. Technical differences and application scenarios
The difference between T7DD and T7DDS
T7DD: Basic double pump model, suitable for conventional high-pressure hydraulic systems.
T7DDS: Optimized version, which may enhance sealing performance or adapt to servo control (for example, the suffix “S” represents a special design).
Application area
Machine tool industry: multi-loop hydraulic drive for injection molding machines and die-casting machines.
Industrial equipment: presses, bending machines, shearing machines, etc.
Shipbuilding and metallurgy: deck machinery, rolling auxiliary equipment.
MAECENAS IACULIS
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