John Crane Inc., is the acknowledged technology leader and the world's largest manufacturer of Mechanical Seals and associated products.
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Bellows Seals
 
Bellows Seals
 
Edge-Welded Metal Bellows  
Type 2800 MB Metal Bellows, Gas Lubricated, Non-Contacting Cartridge Double Seal for Pumps
Type 285 Metal Bellows Gas Lubricated, Non-Contacting Single Seal For Cryogenic Pumps
Type 2874NE Non-Contacting, Non-Elastomer, Metal Bellows, Outward Pumping Dual Gas Seal for High-Temperature Applications
Type 5615 Universal Cartridge Seal Family - Single Metal Bellows Cartridge Seal
Type 5615Q Universal Cartridge Seal Family - Dual Metal Bellows Cartridge Seal
Type 5625 Universal Cartridge Seal Family - Dual Metal Bellows Cartridge Seal
Type 604 High Temperature, Stationary Head Metal Bellows Shaft Seal
Type 606 High Temperature, Rotating Head Metal Bellows Shaft Seal With Lug Drive
Type 609 High Temperature, Rotating Head Metal Bellows Shaft Seal
Type 613 Wet / Dry Running Single Metal Bellows Cartridge Seal
Type 670 Low Temperature, All Hastelloy C Metal Bellows Shaft Seal For Highly Corrosive Fluids
Type 676 Low Temperature, AM350 Metal Bellows Shaft Seal For Mild Corrosive Services
Type 680 Low Temperature, General Duty Alloy-20 Metal Bellows Shaft Seal
Type ECS Secondary Dry-Running Metal Bellows Emission Containment Seal
Type EZ-1 General Purpose Single Metal Bellows Cartridge Seal
Type 604HTC/609HTC High-Temperature Corrosion Resistant Seals
Type 1604HTC API 682/ISO 21049 Type C Sealol Metal Bellows Seals
Type 2609HTC/3609
HTC
API 682/ISO 21049 Type C Sealol Metal Bellows Seals
Elastomer Bellows  
Type 1 Full Convolution Industrial Duty Elastomer Bellows Shaft Seal
Type 1B Full Convolution Industrial Duty Elastomer Bellows Shaft Seal
Type 2 Unitized Full Convolution Industrial Duty Elastomer Bellows Shaft Seal
Type 21 General Duty Elastomer Bellows Shaft Seal
Type 2100 Fully Unitized Heavy Duty Elastomer Bellows Shaft Seal
Type 2B Unitized Full Convolution Industrial Duty Elastomer Bellows Shaft Seal
Type 5611 Universal Cartridge Seal Family - Single Elastomer Bellows Cartridge Seal
Type 5611Q Universal Cartridge Seal Family - Single Elastomer Bellows Cartridge Seal With Quench
Type 6 Low Pressure, Elastomer Bellows Unitized Seal Head For Small Diameter Pumps
Type 6A Compact, single spring, elastomer bellows mechanical seal
Hydroformed Bellows  
Type GL1B Hydroformed Single Metal Bellows Shaft Seal