Outside balanced rotary seal
General-purpose dry running seal with a synthetic rubber O-ring for the shaft packing. Unlike double-seal types, it can directly seal gas in cylinders, so a sealing liquid is not required. This seal uses PTFE with filler as sliding material, and a ceramic stationary ring. Metallic parts do not come in contact with gas in the cylinder. The sliding material can be selected to accommodate specifications.
Cylinder internal pressure: FV to 0.5 MPaG
Peripheral velocity: 1.5 m/s max.
Standard operating temperature range: 0 to 175°C*
If the operating temperature falls below 0°C or exceeds 175°C, separate purge gas or flange jacket is required.
Mechanical seals／Non-Cartridge mechanical seals