Reverse Balanced Single Acting Seal
Factory-assembled cartridge seal for stainless steel agitators.

Series IPSM 725 is a factory-assembled cartridge seal for stainless steel agitators. It runs as a wet seal with a clean lubricating medium that continuously lubricates and cools the seal faces.
The reverse-balanced hydraulic design keeps face loading stable even when the barrier medium pressure varies, making IPSM 725 well suited to top-entry agitators and reactors that see vacuum-to-pressure cycling.
As a cartridge unit the seal arrives pre-set and pre-tested, so it can be fitted without on-site face setting and without disturbing the gland.
Key features
- Factory-assembled, pre-set cartridge construction
- Reverse-balanced faces for stable performance under pressure swings
- Runs as a wet seal with clean external lubrication
- Suited to vacuum and pressure duty on the same equipment
Typical applications
- Stainless steel agitators
- Reactors and stirred vessels
- Top-entry mixing equipment
Materials of construction
- Faces: silicon carbide / tungsten carbide / carbon
- Elastomers: Viton, silicone, EPDM, PTFE
- Metal parts: SS-316 / SS-304
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Tell us your operating conditions, we will engineer the seal
Send the fluid, pressure, temperature, speed and shaft size, or a sample of the existing seal. We reply with a recommendation and a quotation.
