707565 T6C-025-3L03-B1 | Parker Denison Type Vane Pump Cartridge Kit

Product Overview

The 707565 T6C-025-3L03-B1 is a cartridge kit for the Parker Denison T6C series single fixed-displacement vane pump. The T6C series is a legacy product line within the Denison vane pump technology platform, renowned for high-pressure capability, low-noise operation, and excellent contamination resistance across a wide range of industrial hydraulic applications.

This cartridge kit is manufactured to strict Parker Denison T6C series OEM specifications, achieving full interchangeability with original equipment in mounting dimensions, interface configurations, and performance characteristics. The cartridge integrates all critical working components—rotor, vanes, cam ring, and balancing plates—into a single replaceable assembly, utilizing bilabial structure vane technology for superior contamination resistance and wide speed range capability.

The 707565 part number covers the T6C-025-3L03-B1 specification with 79.3 cm³/rev displacement and 240 bar (3,500 PSI) maximum operating pressure. Our products achieve 100% interchangeability with original equipment in materials, machining precision, and performance characteristics, with every unit undergoing 100% factory testing under simulated operating conditions.

Model Code Breakdown (for T6C-025-3L03-B1):

• T6C — Pump series (Denison T6 series, C size)

• 025 — Flow code (25 GPM @ 1,200 r/min, corresponding to 79.3 cm³/rev displacement)

• 3 — Shaft type / mounting configuration

• L — Direction of rotation: counterclockwise (viewed from shaft end)

• 03 — Port position: suction port 90° CCW from discharge port

• B — Seal material: Buna-N (nitrile rubber)

• 1 — Design/series number

Technical Specifications (Bulleted List)

Product Model

• 707565 T6C-025-3L03-B1

Part Number

• 707565

Cartridge Series

• Parker Denison T6C Series Cartridge Kit

Pump Type

• Fixed displacement vane pump cartridge

Geometric Displacement

• 79.3 cm³/rev

Rated Flow

• 25 USgpm @ 1,200 r/min

• 31.42 USgpm @ 1,500 r/min

Maximum Operating Pressure

• 240 bar (3,500 PSI)

Minimum Speed

• 600 r/min

Maximum Speed

• 2,800 r/min

Direction of Rotation

• Counterclockwise (viewed from shaft end, L-type)

Port Position

• Type 03: Suction port located 90° CCW from discharge port

Seal Material

• Buna-N (nitrile rubber, standard)

Mounting Interface

• SAE B mounting flange

• Shaft: 22.2 mm diameter straight shaft (SAE B type)

Compatible Hydraulic Fluids

• Anti-wear mineral oil (HF-0)

• Fire-resistant fluids: HFC (water-glycol), HFD (phosphate ester) – consult selection guide

Weight

• Approx. 15.7 kg (34.6 lb)

T6C Series Available Displacement Codes

• 003, 005, 006, 008, 010, 012, 014, 017, 020, 022, 025, 028, 031

Displacement Cross-Reference

• 017 → 58.3 cm³/rev (17 GPM @ 1,200 r/min)

• 020 → Approx. 66.0 cm³/rev (20 GPM @ 1,200 r/min)

• 025 → 79.3 cm³/rev (25 GPM @ 1,200 r/min)

Key Technical Advantages

1. Drop-in Interchangeability
Manufactured to exacting Parker Denison T6C series OEM standards, this cartridge kit is fully interchangeable with the original 707565 T6C-025-3L03-B1 cartridge. T6C series cartridges are interchangeable within the same housing position (e.g., 7B, 6C, and 6CM cartridges share identical external dimensions). No pump housing replacement or hydraulic line modifications are required, significantly reducing maintenance time and retrofit costs.

2. 100% Simulated Operating Condition Testing
Every cartridge kit undergoes comprehensive factory performance testing under simulated operating conditions, covering rated pressure, peak pressure, flow characteristics, and internal leakage. This ensures the product is ready for full-load operation immediately upon installation, eliminating early failure risks.

3. Bilabial Structure Vane Technology
The T6C series employs Denison’s patented bilabial (double-lip) vane structure, where each vane forms a dual sealing contact with the cam ring surface. This design significantly enhances contamination resistance, reduces sensitivity to hydraulic fluid cleanliness, and minimizes internal leakage for improved volumetric efficiency. Maximum pressure capability reaches 320 bar with maximum speeds up to 3,600 r/min.

4. Low Noise and Low Pulsation Design
The 12-vane configuration optimizes vane and cam ring contact trajectories, effectively reducing pressure pulsation and fluid-borne noise. The T6C series is specifically developed for high-pressure, low-noise applications, making it ideal for noise-sensitive industrial environments.

5. Cartridge Modular Construction for Easy Maintenance
The cartridge kit features a modular design where all internal components—rotor, vanes, cam ring, and balancing plates—are integrated into a single quickly replaceable assembly. The cartridge can be replaced within minutes without disassembling the entire pump body, dramatically reducing equipment downtime.

6. Wide Speed Range and High-Pressure Capability
Speed range spans 600 to 2,800 r/min, accommodating applications from low-speed to high-speed operation. Maximum continuous operating pressure reaches 240 bar (3,500 PSI), meeting the high-pressure requirements of most industrial hydraulic systems.

Application Areas

• Injection Molding Machines — Stable, low-noise hydraulic power delivery

• Die Casting Machines — High-pressure, high-reliability hydraulic systems

• Machine Tool Hydraulic Systems — Hydraulic power units for metal cutting machines and machining centers

• Metallurgical Equipment — Hydraulic systems for rolling mills and continuous casting equipment

• Construction Equipment — Hydraulic auxiliary systems for excavators, loaders, and related machinery

• Power Take-Off (PTO) Units — Integrated cartridge for Chelsea 249V/560V series PTOs

• Industrial Automation Equipment — Hydraulic actuators for automated production lines

Expert Maintenance Tips

1. Cartridge Replacement Guidelines

• Before replacing the cartridge kit, ensure the pump housing interior is clean and free of metal particles or contaminants

• Inspect the housing bore and port plate seating surfaces for scoring or wear; repair or replace as necessary

• T6C series cartridges are interchangeable within the same housing (7B, 6C, and 6CM cartridges share identical external dimensions), but verify the displacement code matches system flow requirements

2. Seal Selection

• Standard seals are Buna-N (nitrile rubber), suitable for mineral oil and anti-wear hydraulic fluids

• For phosphate ester (HFD) and other specialty fluids, specify FKM (Viton) fluororubber seals

• Inspect seals before installation to ensure no aging, deformation, or damage

3. Hydraulic Fluid Selection and Contamination Control

• Recommended fluid: ISO VG 32 or 46 anti-wear hydraulic oil (HF-0 grade)

• System cleanliness should be maintained at ISO 4406 16/13 or NAS 1638 Class 9 or better

• Install return line filtration (≤ 10 μm absolute) to protect the cartridge from particulate contamination

4. Start-up and Operation

• Pre-lubricate the cartridge by filling the drain port with clean hydraulic fluid before first start after replacement

• Perform 2-3 low-speed jogging cycles under no-load conditions to purge air from the system before applying load

• Never operate below minimum speed (600 r/min) or above maximum speed (2,800 r/min)

• While bilabial vane technology offers improved contamination tolerance, maintaining recommended system cleanliness is still advised

5. Scheduled Maintenance

• Inspect cartridge kit wear every 2,000 operating hours or annually, whichever comes first

• Regularly monitor pump housing temperature (normal temperature rise ≤ 40°C; maximum housing temperature ≤ 80°C)

• Investigate flow reduction, increased pressure fluctuation, or abnormal noise promptly; inspect cartridge components for wear

6. Spare Parts Recommendation

• Stock cartridge kits as critical spare parts for rapid on-site replacement within minutes

• Maintain companion seal kit inventory

• Parker officially recommends that pump modifications, conversions, and repairs be performed by authorized dealers or OEMs to avoid warranty invalidation