China High Quality Flowserve Mechanical Seal Supplier – W1A Full Convolution Industrial-duty Elastomer Bellows Shaft Seal replace John crane type 1A mechanical seals – VICTOR SEALS

Features

To absorb both breakout and running torque, the seal is designed with a drive band and drive notches that eliminate overstressing of bellows. Slippage is eliminated, protecting the shaft and sleeve from wear and scoring.
Automatic adjustment compensates for abnormal shaft-end play, run-out, primary ring wear and equipment tolerances. Uniform spring pressure compensates for axial and radial shaft movement.
Special balancing accommodates higher-pressure applications, greater operating speeds and lower wear.
Non-clogging, single-coil spring allows for greater dependability than multiple spring designs. Will not run foul due to fluid contact.
Low drive torque improves performance and reliability.

Recommended application

For pulp and paper,
petrochemical,
food processing,
wastewater treatment,
chemical processing,
power generation

Operating range

Temperature: -40°C to 205°C/-40°F to 400°F (depending on materials used)
Pressure: 1: up to 29 bar g/425 psig 1B: up to 82 bar g/1200 psig
Speed: See enclosed speed limits chart.

Combination Materials:

Stationary Ring: Ceramic, SIC, SSIC, Carbon, TC
Rotary Ring: Ceramic, SIC, SSIC, Carbon, TC
Secondary Seal: NBR, EPDM, Viton
Spring and Metal Parts: SS304, SS316

W1A data sheet of dimension(mm)