Upstream Pumping
Transforming the traditional concept of sealing

Applying gas seal spiral groove technology to wet seals
Overcome the Toughest Applications to Boost Equipment Longevity
Tackle High Heat Generation, Low-Lubricity, and Intermittent Dry-Running Conditions
We answer operators’ toughest challenges, improving seal and pump reliability, preventing unplanned downtime and reducing operating costs across a broad range of process industries, including:
John Crane’s unique, engineered, non-contacting Dynamic Lift Up-stream Pumping face technology borrows from gas seal designs to deliver a breakthrough in liquid sealing technology. This allows operators to:
- Improve mechanical seal life
- Increase mean time between repair (MTBR)
- Reduce seal leakage to atmosphere when compared to a pressurized dual seal
- Allow a clean inboard face fluid interface, even with dirty product
- Deliver a simple support system ensuring face lubrication without the cost of a pressurized barrier system
- Prevent solid build-up with slurries, scaling fluids or solids in suspension
- Eliminate seal face flush to dissipate seal heat, reducing water usage
- Address low water supply pressure challenges
- Reduce power consumption and heat generation due to non-contacting technology

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