1. Technical features:

single seal; unbalance; single spring; bi-directional;elastomer  bellows; TO DIN 24960

Equivalent to John Crane type 502

2.  Operating limits

d1=14-100mm; PV=4.0Mpa * 13m/s, t=-40 - 205℃

3. Combination of Materials

seal face: carbon graphite(resin-impreg), silicon carbon, tungsten carbide

stationary seats: alumina ceramic, silicon carbide, tungsten carbide

bellows: NBR , FPM, EPDM

spring, other material components AISI 304,316,316Ti

secondary seats: NBR, FPM, EPDM