T6C-B25-1R00-B1 Denison Fixed Vane Pump 79.3 ml/r 275 bar

Product Overview

The T6 and T7 Series, manufactured by Parker Denison, are renowned fixed-displacement vane pump product lines celebrated for their high-pressure capability, wide speed range, and compact design. The T6 Series encompasses three housing sizes—T6C, T6D, and T6E—with displacement ranges from 10.8 to 269 ml/r. The T6CR, T6DR, and T6ER are thru-drive versions supporting multiple pump series connections. The T7B Series represents a higher-pressure class of industrial vane pumps with peak pressures up to 320 bar.

Denison T6/T7 Series vane pumps feature a bilabial structure vane design, offering exceptional contamination resistance and a wide speed range. These are balanced-type fixed-displacement vane pumps, with fully balanced radial hydraulic forces that ensure long bearing life and smooth operation.

Our products are manufactured to be 100% interchangeable with Parker Denison original specifications—a true “drop-in” replacement solution. Every unit undergoes 100% full-load and flow-matching testing under simulated operating conditions before shipment, ensuring volumetric efficiency, flow rate, and noise performance meet or exceed original specifications at rated pressure.

Technical Specifications 

T6C-B25-1R00-B1

• Product Type: Fixed Displacement Single Vane Pump

• Brand: Parker Denison

• Series: T6C (Small Housing)

• Displacement: 79.3 ml/r

• Rated Continuous Pressure: 240 bar

• Maximum Intermittent Pressure: 275 bar

• Maximum Flow (@1500 rpm, 240 bar): 110.4 L/min

• Theoretical Flow (@1500 rpm, 0 bar): 118.9 L/min

• Drive Power (@1500 rpm, 240 bar): 49.5 kW

• Drive Power (@1500 rpm, 140 bar): 29.2 kW

• Minimum Speed: 600 r/min

• Maximum Speed: 2500 r/min

• Mounting Flange: SAE B 2-Bolt Flange, J744 P1

• Flange Pilot Diameter: 101.6 mm

• Mounting Bolt Hole Spacing: 146 mm

• Shaft Type: SAE B Cylindrical Keyed Shaft

• Shaft Diameter: 22.22 mm (7/8 inch)

• Port Position: 00 (Opposite side from inlet)

• Seal Material: BUNA N (Nitrile)

• Rotation: Clockwise

• Suction Port: 1 1/2 inch

• Pressure Port: 1 inch

• Net Weight: Approx. 15.7 kg

• Fluid Compatibility: Petroleum-based hydraulic oil (mineral oil)

T6CR Series (Thru-Drive)

• Product Type: Thru-Drive Fixed Displacement Single Vane Pump

• Brand: Parker Denison

• Series: T6CR (T6C Housing + Thru-Drive)

• Displacement Range: 10.8–100 ml/r

• Typical Displacement (003): 10.8 ml/r

• Typical Displacement (025): 79.3 ml/r

• Typical Displacement (028): 88.8 ml/r

• Typical Displacement (031): 100.0 ml/r

• Maximum Rated Pressure: Up to 275 bar

• Minimum Speed: 400–600 r/min

• Maximum Speed: 2500–2800 r/min

• Thru-Drive Capability: Supported (can drive a second pump in series)

• Mounting: SAE Standard Flange

• Fluid Compatibility: Petroleum-based hydraulic oil

T6DR Series (Thru-Drive)

• Product Type: Thru-Drive Fixed Displacement Single Vane Pump

• Brand: Parker Denison

• Series: T6DR (T6D Housing + Thru-Drive)

• Displacement Range: 47.6–158 ml/r

• Typical Displacement (038): 120.3 ml/r

• Maximum Rated Pressure: Up to 240 bar

• Minimum Speed: 400–600 r/min

• Maximum Speed: 2200–2500 r/min

• Thru-Drive Capability: Supported

• Mounting: SAE Standard Flange

• Net Weight: Approx. 38.6 kg

• Fluid Compatibility: Petroleum-based hydraulic oil

T6ER Series (Thru-Drive)

• Product Type: Thru-Drive Fixed Displacement Single Vane Pump

• Brand: Parker Denison

• Series: T6ER (T6E Housing + Thru-Drive)

• Displacement Range: 132.3–269 ml/r

• Typical Displacement (042): 132.3 ml/r

• Maximum Rated Pressure: Up to 240 bar

• Minimum Speed: 800 r/min

• Maximum Speed: 2200 r/min

• Thru-Drive Capability: Supported

• Mounting: SAE Standard Flange

• Net Weight: Approx. 43.3 kg

• Fluid Compatibility: Petroleum-based hydraulic oil

T7B Series

• Product Type: Fixed Displacement Single Vane Pump

• Brand: Parker Denison

• Series: T7B

• Displacement Range: 5.8–41 ml/r

• Typical Displacement (B02): 5.8 ml/r

• Typical Displacement (B03): 9.8 ml/r

• Typical Displacement (B07): 22.5 ml/r

• Typical Displacement (B08): 24.9 ml/r

• Typical Displacement (B11): 35.0 ml/r

• Typical Displacement (B12): 41.0 ml/r

• Maximum Continuous Pressure: Up to 290 bar

• Maximum Intermittent Pressure: 320 bar

• Rated Speed: 1800 r/min

• Maximum Speed: 3600 r/min

• Mounting: SAE Standard Flange

• Noise Level: Approx. 67 dB(A) @150 bar, 2000 rpm

• Fluid Compatibility: Petroleum-based hydraulic oil

Key Technical Advantages

1. Bilabial Structure Vane – Exceptional Contamination Resistance
The Denison T6/T7 Series features a unique bilabial (double-lip) structure vane design. This design maintains optimal vane-to-stator contact under high pressure while providing exceptional contamination resistance, ensuring stable operation even in environments with lower fluid cleanliness. This significantly extends pump service life under harsh operating conditions.

2. Balanced-Type Design – Extended Bearing Life
The T6/T7 Series employs a balanced-type hydraulic design, where radial hydraulic forces are fully balanced, eliminating radial loads on the rotor. This design dramatically reduces bearing stress, significantly extending bearing life and enabling long-term stable operation under high-pressure conditions.

3. Ultra-High Pressure Capability in a Compact Envelope
The T6 Series achieves operating pressures up to 275 bar within a compact housing size; the T7B Series reaches peak pressures of 320 bar. High-pressure capability allows the use of smaller actuators and lines, reducing overall system cost and installation footprint.

4. Wide Speed Range for Maximum Application Flexibility
The T6 Series supports a wide speed range of 400–2800 r/min, while the T7B Series reaches maximum speeds of 3600 r/min. This wide speed range enables the series to adapt to diverse applications—from low-speed high-torque to high-speed light-load operations.

5. Thru-Drive Capability – Flexible System Expansion
The T6CR/T6DR/T6ER thru-drive versions support multiple pump series connections. A single power source can drive multiple hydraulic pumps, greatly simplifying complex hydraulic system design and reducing installation space and costs.

6. Exceptionally Low-Noise Operation
Denison T6/T7 Series pumps excel in noise control. The T7B Series achieves just 67 dB(A) at 150 bar, 2000 rpm. This low-noise characteristic makes them ideal for indoor industrial environments and noise-sensitive applications.

7. 100% Drop-In Interchangeability – Zero Retrofit Cost
Manufactured to exact Parker Denison original specifications—mounting dimensions, port locations, and shaft configurations are identical to the original. No piping modifications or installation adapters are required for direct replacement.

Application Areas

• Injection Molding Machines: Providing stable, high-pressure hydraulic power

• Die-Casting Machinery: High-pressure, pulse-free hydraulic power source

• Cranes & Construction Machinery: T6CR/T6DR/T6ER thru-drive versions ideal for multi-pump series connections in mobile equipment

• CNC Machine Tools & Machining Centers: Low-noise, high-precision hydraulic power

• Industrial Power Units: Core power source for indoor hydraulic stations requiring high pressure and long service life

• Automated Assembly Lines: Single pump driving multiple actuators

• Material Handling Equipment: Forklifts, lift platforms, etc.

• Agricultural Machinery: Combine harvesters, tractor hydraulic systems

Expert Maintenance Tips

1. Model Identification and Selection

• T6C: Small housing, displacement 10.8–100 ml/r, max pressure 275 bar.

• T6D: Medium housing, displacement 47.6–158 ml/r, max pressure 240 bar.

• T6E: Large housing, displacement 132.3–269 ml/r, max pressure 240 bar.

• T6CR/T6DR/T6ER: Suffix “R” indicates Thru-Drive capability for series connections.

• T7B: Higher pressure class, peak pressure 320 bar.

2. Installation Precautions

• Verify pump rotation direction matches system requirements—standard configuration is clockwise (viewed from shaft end).

• SAE B flange pilot diameter: 101.6 mm, bolt hole spacing: 146 mm.

• Shaft: SAE B cylindrical keyed shaft, diameter 22.22 mm.

• Suction piping should be as short as possible, minimizing unnecessary restrictions.

• The pump housing must not bear piping loads; suction and discharge lines must have independent supports.

3. Pre-Startup Checklist

• Verify oil level in the reservoir is adequate and fluid type is correct.

• Confirm all piping connections are secure with no leakage.

• Prime the pump by filling the housing with oil before first startup to prevent dry running.

4. Fluid Management

• High-quality anti-wear hydraulic oil (ISO VG32, VG46, or VG68) is recommended.

• Denison T6/T7 Series features bilabial structure vanes with high contamination resistance, but fluid cleanliness should still be maintained at NAS 9 or higher.

• Regularly check oil temperature to ensure it does not exceed 60°C.

5. Scheduled Maintenance

• Replace hydraulic oil and filters every 2000 operating hours or annually.

• The T6 Series features cartridge-type construction—pump cartridges can be replaced independently without removing the entire pump.

• When replacing cartridges, inspect seal conditions to prevent installation-related leakage.