shaft seal 1.Item No.:HF6A 2.operating limits: pressure:0~0.6mpa, speed:0~5000rpm temperature:-40~150oC Shaft Seal1.Item No.:HF6A2.Operating limits: pressure:0~0.6mpa speed:0~5000rpm temperature:-40~150oC3.Material: rotary ring:ceramic/sic/tc stationary ring:carbon/sic/tc secondary seal:nbr (hnbr)/epdm/viton spring&other parts:s.s/sus304//sus316/cu. John Crane shaft seal