Manufacturer: John Crane
Low pressure Elastomer Bellows Unitized Seal Head for Small diameter Pumps
This compact, unitized, single spring, elastomer bellows mechanical seal is designed for use in small centrifugal water pumps, deep and shallow well jet pumps, pool and spa pumps and wastewater pumps.
• Precision surface finish optimizes the service life and reliability. Materials designed to meet the broadest range of applications.
• Elastomer drive ring grips shaft to provide positive sealing and drive without set screws or drive pins.
• Full convolution elastomer bellows provides maximum flexibility in compensating for shaft movement and wear.
• Coil spring and ferrules provide consistent face loading through extreme working conditions.
TEMPERATURE LIMITS40°F to 400°F/ 40°C to 205°C (depending on materials used)
PRESSURE LIMITSID: 7.20 psi(g)/0.5 bar(g) - -OD: 75 psi(g)/5 bar(g) -
SPEED LIMITS1000fpm/5m/s - -Up to 3600 rpm, depending on configuration and shaft size