John Crane TYPE 502
The type 502 is one of the best-performing elastomeric bellows seals available for general service, excellent in a wide range of hot water and mild chemical duties. It is specially designed for confined spaces and limited glands lengths.
Material used :
- Stationary Ring (Alumina 99%/Alumina 99.5%/SiC/SSiC/TC)
- Rotary Ring (Carbon/SiC/SSiC/TC)
- Secondary Seal (NBR/EPDM/Viton)
- Spring and Punched Parts (SS304/SS316)
Applications:
The Type 502 is a full convolution elastomeric bellows seal designed for confined spaces and limited gland depths. Selfaligning feature compensates for excessive shaft end play and run-out.
- All types of rotary equipment, pumps, marine, mixers, agitators, blowers, fans and compressors in a variety of service applications
- Supplied completely assembled for fast installation and field repairable
- Complies with DIN 24960, ISO 3069, and BS.5257:1975
Design Features
- Completely assembled one-piece design for fast installation
- Unitized design incorporates positive retainer/key drive from bellows
- Non-clogging, single coil spring provides greater dependability than multiple spring designs. Will not be affected by build-up of solids
- Full convolution elastomeric bellows seal designed for confined spaces and limited gland depths. Self-aligning feature compensates for excessive shaft end play and run-out
Performance Capabilities
- Temperature: -40°C to +205°C
(depending on materials used) - Pressure: up to 40 bar g
- Speed: up to 13 m/s
Typical Applications
- Paints and inks
- Water
- Weak acids
Industries Served
- Chemical processing
- Conveyor and industrial equipment
- Cryogenics
- Food processing
- Gas compression
- Industrial blowers and fans
- Marine
- Mixers and agitators
- Nuclear service
- Offshore
- Oil and refinery
- Paint and ink
- Petrochemical processing
- Pharmaceutical
- Pipeline
- Power generation
- Pulp and paper
- Water systems
- Wastewater
- Treatment
- Water desalination
