Parker T7DS E28 1R03 A5MW Single Vane Pump, 176 ml/rev (10.74 in³/rev), SAE "C" Keyed Shaft, Right-Hand Rotation, Viton Seal, Metric Threads

The Parker Denison T7DS E28 1R03 A5MW Single Vane Pump is a robust, high-performance hydraulic pump engineered for demanding mobile and industrial applications requiring precise flow and durable operation, especially where excellent fluid compatibility is critical. As a premier offering within Parker's renowned T7DS series, this single vane pump delivers superior efficiency, reliability, and an extended service life in a compact design. It is meticulously designed for high-pressure and high-speed conditions, making it an ideal choice for challenging hydraulic systems.

Key Features:

• High and Precise Displacement: Features an E28 cam ring, providing a substantial fixed displacement of 176 ml/rev (approximately 10.74 in³/rev). This high flow capacity ensures powerful and consistent hydraulic performance for applications demanding significant power.
• SAE "C" Keyed Shaft: Equipped with a durable SAE "C" Keyed Shaft (Code 1, Ø 31.7 mm), designed for robust power transmission and straightforward integration into common drive systems.
• Right-Hand (Clockwise) Rotation: Configured for right-hand rotation (clockwise when viewed from the shaft end), matching specific system requirements for directional operation.
• Viton® (S5) Seal Class: Incorporates Viton® (S5) seal material (Code A5), ensuring superior compatibility with a wide range of hydraulic fluids, including mineral oils and certain fire-resistant fluids. This advanced seal technology provides enhanced durability and reliability under various operating conditions.
• Standard Porting Combination (03): Features a standard porting combination (Code 03) with clearly defined pressure (P) and suction (S) ports, facilitating efficient hydraulic circuit design and connection.
• Metric Thread Connections: Equipped with metric threads (MW) for its mounting and connection variables, ensuring compatibility with systems designed to international metric standards.
• High Pressure Capability: As part of the T7DS series, this pump is designed for very high operating pressures, typically up to 3000 PSI / 210 bar (for mineral oil, dependent on fluid type and specific configuration). This capability allows for smaller actuator and valve sizing, reducing overall system cost and maximizing power density.
• Exceptional Efficiency: Boasts high volumetric (typically 94%) and mechanical (typically 94%) efficiency under load. This translates directly into improved productivity, minimized heat generation, and lower overall operational costs. The pump maintains efficiency even at low speeds and full pressure.
• Cartridge Design for Easy Service: Features an innovative cartridge assembly design that allows for quick and easy replacement of serviceable elements in minutes. This minimizes downtime, reduces maintenance costs, and mitigates the risk of contamination. T7DS pumps are bi-rotational in principle, with rotation direction easily adjustable by repositioning the cam ring (though this specific model is configured for Right-Hand rotation).
• Reduced Noise Operation: Engineered for low noise levels to contribute to enhanced operator safety and acceptance in various work environments. The design minimizes pressure ripple, further reducing piping noise and extending the lifespan of other circuit components.
• Broad Viscosity Acceptance: Capable of operating reliably across a broad range of fluid viscosities, from 9240 to 60 SUS, facilitating optimal performance during cold start-ups and in hot running conditions. The balanced design effectively compensates for wear and temperature changes, ensuring consistent lubrication and mechanical efficiency.

Technical Specifications:

• Model: T7DS E28 1R03 A5MW
• Pump Type: Single Vane Pump
• Displacement: 176 ml/rev (10.74 in³/rev)
• Shaft Type: Keyed Shaft (SAE "C", Ø 31.7 mm)
• Rotation: Right-Hand (Clockwise, viewed from shaft end)
• Porting Combination: Standard Porting (Code 03, P/S port configuration)
• Seal Class: S5 VITON® (Code A5), suitable for mineral oil and certain fire-resistant fluids (7 bar max for fire-resistant fluids).
• Mounting/Connection Threads: Metric Threads (MW)
• Maximum Operating Pressure: Up to 3000 PSI / 210 bar (for mineral oil, based on T7DS series capabilities; refer to specific performance curves for precise fluid/pressure limits).
• Speed Range: Typically 400 RPM to 2600 RPM (dependent on configuration and fluid properties).
• Fluid Compatibility: Compatible with petroleum-based anti-wear R&O fluids (HF-0, HF-2 recommended) and various fire-resistant fluids, thanks to the Viton® seals.
• Fluid Cleanliness: Recommended contamination level of NAS 1638 Class 8 (or ISO 18/14) or better.
• Mounting: SAE C 2-bolt mounting flange.