Mechanical seal ISE2

Technical Data Mechanical seal ISE2

Temperature Limits 350°F/180°C
Pressure Limits Process pressure: 290 psi(g)/20 bar(g)
Seal water pressure: 215 psi(g)/15 bar(g)
Speed Limits 65fps/30m/s
Standard Materials Seal faces: SiC/SiC (product side), SiC/Carbon (atmosphere side)
- O-rings: PTFE (product side), EPDM, Viton
- Metals: AISI 329 (standard), titanium, UHB, super duplex
- Springs: Nimonic steel

Brand

KSB

Dual Mechanical Seals for Sulzer Process Pumps – Type ISE2

The Safeseal ISE2 is a customer-fitted (OEM standard) dual, balanced cartridge seal designed for the severe applications found in the pulp and paper industry and slurry applications. This seal is typically used in pumps for abrasive and environmentally hazardous liquids in cooking, evaporation and causticizing facilities in pulp mills. It is designed as a dual-pressurized (double) seal, but incorporates a patented double-balance feature which also allows it to be used as an unpressurized (tandem) dual seal arrangement. The Type ISE2-AP seal is especially designed for the Sulzer APP pump series.

Several variants of the design available for different services:

Type ISE2C — dual, balanced cartridge seal for Sulzer Scanpump

Type ISE2CF — dual, balanced cartridge seal with flush for Sulzer Scanpump

Type ISE2-APR — with circulation device

Applications

Process pumps
Other rotating equipment

Features ise2

California Residents: PROPOSITION 65 WARNING
Seal faces are installed using a patented heat shrink
process, ensuring correct, distortion-free face alignment at all recommended temperatures.
The springs are located in the stationary body of the seal in the seal water (barrier fluid). The seal water washes the springs, preventing corrosion by process chemicals and reducing the risk of the springs becoming clogged.
Shaft misalignment does not vibrate or wear out the O-rings.
The piston design permits free axial movement. It allows ± 2mm axial movement. Impeller adjustments do not affect face stress or spring strength.
PTFE slot rings replace the traditional O-rings in places where they are exposed to the product, preventing sticking.
Protected faces, the seal face carriers are driven by machined fits, preventing metal stress from distorting the face.
Patented double-balanced design allows the use of both pressurized and un-pressurized seal water (barrier/buffer fluid) and prevents face overload.