Yanhui Hydraulic Co., Ltd. is a professional supplier of industrial hydraulic components and systems, specializing in hydraulic pumps, motors, valves, and complete solutions.
Key Features & Advantages
1. Dual Flow Output, Higher System Efficiency
- Two independent pumping sections
- Supports multi-circuit hydraulic systems
- Reduces the need for multiple pumps
2. Low Noise & Smooth Operation
- Precision vane design
- Balanced hydraulic forces
- Ideal for noise-sensitive industrial environments
3. High Volumetric Efficiency
- Excellent internal sealing
- Stable flow across wide pressure ranges
- Lower energy consumption
4. Long Service Life
- Wear-resistant vanes and cam ring
- High-quality Parker Denison materials
- Designed for continuous duty operation
5. Flexible Configuration
- Multiple displacement combinations available
- Clockwise / counter-clockwise rotation options
- Compatible with various hydraulic fluids
Typical Product Series
Parker Denison double vane pumps are commonly available in the following series:
- T6DC / T6EC Series
- T7DD Series
- V20/VQ Series (Dual Section)
Each series supports different flow ranges and pressure ratings, making it suitable for both medium- and high-pressure applications.
Technical Parameters (Reference)
| Parameter | Typical Range |
|---|---|
| Pump Type | Double Vane Pump |
| Maximum Pressure | up to 210 bar (3000 psi) |
| Displacement Range | 10 – 150 cm³/rev (combined) |
| Speed Range | 600 – 2400 rpm |
| Flow Rate | up to 250 L/min |
| Drive Type | Direct shaft drive |
| Mounting | SAE / ISO standard |
| Rotation | CW / CCW |
| Fluid Compatibility | Mineral oil, HFC (with seal option) |
| Operating Temperature | −20°C to +80°C |
Common Applications
Parker Denison Hydraulics Double Vane Pumps are widely used in:
- CNC & machine tools
- Injection molding machines
- Hydraulic presses
- Rubber & plastic machinery
- Industrial power units
- Steel & metal forming equipment
- Automated production lines
Their dual-section design is especially useful where fast approach + high-pressure working stroke is required.
How to Choose the Right Parker Denison Double Vane Pump
1. Required Flow for Each Circuit
- Define flow rate for primary and secondary circuits
- Choose appropriate displacement combination
2. Maximum System Pressure
- Ensure pump pressure rating exceeds system working pressure
- Consider pressure peaks and safety margin
3. Operating Speed
- Match pump speed with motor or engine RPM
- Avoid running below minimum or above maximum limits
4. Hydraulic Fluid Type
- Standard mineral oil or fire-resistant fluids
- Confirm seal and material compatibility
5. Installation Space & Mounting
- Shaft type, flange size, and port orientation
- Ensure easy maintenance access
FAQ
Q1: What is the difference between a single vane pump and a double vane pump?
A double vane pump integrates two pumping sections in one housing, allowing one drive source to power two hydraulic circuits, reducing system size and cost.
Q2: Can Parker Denison double vane pumps replace original Denison pumps?
Yes. Parker acquired Denison Hydraulics, and current Parker Denison pumps are fully compatible replacements with equal or improved performance.
Q3: Are these pumps suitable for continuous operation?
Yes. They are designed for continuous industrial duty, provided operating conditions meet recommended specifications.
Q4: Can the two sections have different displacements?
Yes. One of the main advantages is the ability to combine different displacement sizes in one pump body.
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