Project Description
RT502
John Crane Type502 Replacement
Mechanical Seal Type RT502 is one of the best performing bellows seal,it is ideal for use in hot water pumps, industrial pumps and petroleum chemical industry.
Features
With full enclosed elastomer bellows design
Insensitive to shaft play and run out
Bellows should not twist due to bi-directional and robust drive
Single seal and single spring
Conform with DIN24960 standard
Recommended Applications
Petroleum chemical industry
Industrial pumps
Process pumps
Other Rotating Equipment
Operating range
Shaft diameter: d1=14…100 mm
Pressure: p=0…2.8Mpa（406psi）
Temperature: t = -40 °C …200 °C(-40°F to 392°F)
Sliding velocity: Vg≤13m/s（42.6ft/m）
Product Structure
Combination Materials
1.Rotary Face
Carbon graphite resin impregnated Ak
Silicon carbide (RBSIC) O
Hot-Pressing Carbon Ac
2.Stationary Seat
Aluminium oxide(Ceramic) B
Silicon carbide (RBSIC) O
Tungsten carbide W1
3.Auxiliary Seal
Nitrile-Butadiene-Rubber (NBR) P
Fluorocarbon-Rubber (Viton) V
Ethylene-Propylene-Diene (EPDM) E
4.Spring
Stainless Steel (SUS304) F
5.Metal Parts
Stainless Steel (SUS304) F