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John Crane Type 285 Dry Gas Seals Metal Bellows Mechanical Seal For Cryogenic Pumps
- Mechanical Seals
- Pump Seals
- Non-contacting seals
Type 285
Gas-lubricated, Non-contacting Single Seal For Cryogenic Pumps
Unique Spiral Groove Technology
As the worldwide leader in spiral groove technology, John Crane is the first to utilize non-contacting seals in cryogenic applications.
The Type 285 can safely seal the most common industrial liquid gasses, such as liquid nitrogen, oxygen, argon and carbon dioxide.
It fits the most popular cryogenic pumps — site-based and road tanker pumps — and meets liquid oxygen (LOX) safety standards.
The John Crane spiral grooves enable the seal to operate on a gas film by gathering and compressing the vaporized liquid.
As the gas is forced towards the closed groove ends, the pressure rises, which creates a cushion to separate the sealing faces.
Since the seal faces do not contact, dry-running and face wear problems, which are associated with conventional contacting seals, are virtually eliminated.
Technical Specifications
| John Crane, Inc. |
|---|
| Mechanical Seals |
| Type 285 |
| Gas-lubricated, Non-contacting Single Seal For Cryogenic Pumps |
| Single |
| Metal Bellows |
| Pump; Cryogenic Seal |
Features
- Specially designed stationary edge-welded metal bellows.
- Available in flanged, right- and left-hand threaded designs or as a cartridge.
- Meets liquid oxygen (LOX) safety standards.
- Anti-spark sleeve and retaining ring.
- Reduced power consumption with minimal product loss. Since the seal faces do not contact, dry-running and face wear problems, which are associated with conventional contacting seals, are virtually eliminated.
- The design and materials of construction meet the industry safety requirements, allowing the Type 285 to seal all of the common industrial liquid gasses including oxygen, nitrogen and argon.
- The Type 285 is more tolerant to system upsets and increases your mean time between pump maintenance.
Parameters
- Process pumps
- Other rotating equipment
- Cryogenic, Liquified Gasses
BESTSEAL — Your Reliable Partner for Mechanical Seals
| BESTSEAL Advantage: | |
|---|---|
| 15 years | Focused in mechanical seal manufacturing |
| 3 hours | Quotation response only takes 3 hours |
| 1 day | Provide production assembly drawings |
| 1 piece | MOQ, One piece can also be produced |
| 15-20 working days | The production cycle only takes 15-20 working days |
| real-time | Real time synchronization of production progress |
BESTSEAL Dry Gas Mechanical Seal
Your Fast-Track Alternative to John Crane Type 285
Custom Cartridge Mechanical Seals — From Drawing to Delivery in 15–20 Working Days
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