John Crane Safematic Seals SAF Cartridge Mechanical Seal For Pressured Screen
SAF Mechanical Seal for Paper-making Equipment and Pressure Screens (for paper pulp agitation)
Description:
Pressure: 2 - 2.4 MPa
Temperature: - 40 ~ 200 ºC
Linear Speed: 20 m/s or less

Structure: Double-End
Pressure: High Pressure Mechanical Seals
Speed: General Speed Mechanical Seal
Temperature: Medium Temperature Mechanical Seal
Performance: Corrosion
Standard: Specific Customization
Model NO.: SAF
Balance: Balanced
Specification: Inner Diameter: 45 mm to 200 mm
Material:
Rotary Ring: Carbon/SiC/TC
Stationary Ring: SiC/TC
Elastomers: EPDM/FKM/Aflas/FFKM
Springs: SS304/SS316L/HC-276
Metal Parts: 2Cr13/SS304/SS316L
Mediums: water, oil, acid, alkali, salt, solvents, paper pulp and other medium corrosion content.
Customization: Changes of materials for getting other operating parameters are possible. Contact us with your requirements.

Double-end, multiple springs, with spring protector, balanced, independent direction of rotation, spring standing mechanical seal. The component is cartridge seal with easy installation. The springs are not touching the sealed mediums so that there will be no jam caused by the high viscosity and crystallization active content. This makes sure the flexibility of the compensation ring and as a result, it lasts the lifetime of the whole component. Multi spring structure makes the load on the sealing faces balanced. The seal needs to work with sealing water, which has the pressure of 0.1 - 0.3 MPa and flow rate of 3 - 8 L/min.

Industrial Standards: Specific Customization.

Scopes of Application: mainly used in chemical engineering, pulp production, pulp drying, pulp screening, and sewage treatment. Designed for pressure screens and other filters. This component can work as an alternative to ANDRITZ SafeMatic seal support system.