Parker Denison T67DBB fixed displacement vane pump

The T67DBB is a hydraulic vane pump with a fixed displacement design. “Fixed displacement” means it delivers a constant volume of fluid per revolution, making it ideal for open-loop circuits where flow demand is predictable.

The “T6” series from Denison (now Parker) is legendary for its cartridge kit construction. The T67DBB uses a double-lip vane design that provides:

Lower housing pressure than equivalent gear pumps.

Better volumetric efficiency (typically >92%).

Significantly quieter operation—often below 75 dBA.

Applications: Where the T67DBB Excels

Injection Molding Machines

In injection molding, pressure spikes can ruin a part mid-cycle. The T67DBB's low pulsation (as low as ±1 bar) ensures consistent clamp and injection speeds. Many OEMs pair it with proportional valves for energy-saving variable displacement-like performance—but at a lower upfront cost.

Presses and Shears

For hydraulic presses that run long dwell cycles, the T67DBB's through-drive capability is a game-changer. You can mount a second pump (like a smaller T6C or a piston pump) on the rear shaft to create a high-low system: high flow for rapid approach, low flow for high pressure.

Material Handling Conveyors

Conveyor systems running 24/7 need components that handle contamination. The T67DBB accepts higher dirt levels than piston pumps—typically ISO 18/13/10 instead of 16/13/8—reducing filter maintenance intervals.

Installation Best Practices

I've seen too many T67DBB failures traced to incorrect inlet plumbing. Here's what works:

Inlet vacuum: Keep below 0.5 bar absolute. Use a flexible suction hose one size larger than the port.

Shaft alignment: Angular misalignment under 0.5°, parallel under 0.13 mm. Use a flexible coupling—never direct motor mount.

Start-up: Fill the case drain with clean oil before first run. Run at no load for 10 minutes.

For more information on the T67DBB hydraulic vane pump, please visit https://www.baolilaihydraulic.com/product/.

Selection Table

Q1: What hydraulic fluid works best?

A1:Use ISO VG 46 or 68 anti-wear hydraulic oil (e.g., Mobil DTE 25, Shell Tellus S2 M 46). For cold climates (below 0°C), VG 32 with a high viscosity index.

Q2:How do I identify the rotation direction?

A2:Look at the shaft end: clockwise (CW) means the shaft turns right when facing the shaft. The pump label also marks “CW” or “CCW.” Installing the wrong rotation will damage the vanes within minutes.

Q3:How to purchase a T67DBB hydraulic pump?

A3:You can visit https://www.baolilaihydraulic.com/contact/ to contact us and purchase our products through various methods.

Q4:What is the price and delivery time of the T67DBB hydraulic pump?

A4:The specific price and delivery time will be provided based on the specific model you provide.