Mechanical Seals

Type 28AT: The original gas seal, with a design pedigree stretching back over 30 years and evolving gradually, installed and...

Do you want to retrofit to the latest gas seal technology? Aura® 120NS eliminates oil lubrication and the resulting need to address methane that has become…

Type 28XP: Possibly the most popular seal in the range today, the Type 28XP builds on the 28AT design and...

Type 28EXP: The product for the most challenging and hostile environments with proven and independently audited performance to 425 bar(g)....

Type 28ST combines proven rotating groove technology and high-temperature secondary seals to reduce steam leakage by nearly two orders of...

Utilizing proven spiral groove technology, the Type 28VL harnesses the rotational energy of the pump shaft to vaporize the process fluid at a controlled rate…

The Type 83 is a dual-segmented carbon bushing assembly designed to prevent the migration of bearing oil to the dry...

The Type 93FR is a non-contacting carbon bushing designed to protect dry gas seals from bearing oil ingress. Segments are...

The Type 93LR is a non-contacting segmented bushing seal with a balanced lift-off carbon design that minimizes the gas consumption in both pressure and flow…

With its proven track record of exceptional performance, the Type 1 elastomer bellows seal is widely recognized as the industry's...

The Type 2 mechanical seal is available in single, double and balanced arrangements. An outside-mounted spring results in a compact working height...

Our general-purpose mechanical seal has become the industry standard for OEM designers. Automatic adjustment compensates for abnormal shaft-end play, run out,...

Designed for demanding applications, the Type 2100 mechanical seal is a compact, unitized, single-spring elastomer bellows mechanical seal that offers maximum durability...

The Type 2106 mechanical seal is a compact, unitized, single-spring elastomer bellows seal that not only offers durability and performance but...

Suitable for DIN and ANSI pumps using aqueous solutions, engineered to simplify installation, reduce maintenance and save on overall costs.

The Type 502 mechanical seal is one of the best-performing elastomeric bellows seals available for general service, excellent in a wide...

The Type 5611 mechanical seal is the first truly universal cartridge seal — and its modular family concept will change your approach to sealing. Because…

This compact, unitized, single-spring, elastomer bellow mechanical seal is designed for use in small centrifugal water pumps, deep- and...

Type 8648VRS is a standardized non-pusher elastomer mechanical seal using patented technology, designed specifically for difficult hydrocarbon oil pipeline applications. It is designed specifically with…

Type 8628VSC is a standardized non-pusher elastomer, dry running non-contacting secondary containment seal designed specifically for refined oil hydrocarbon services, with a focus on meeting…

The SCB Secondary Containment Bushing is a standardized, dual-bushing arrangement intended for . . . 

The John Crane Type 8648SC is a standardized non-pusher elastomer, dry running, secondary containment seal designed specifically for non-crude oil hydrocarbon services, with a focus…

Available in low- and high-temperature designs, the ECS® is a dry-running seal for emission containment and safety/backup that successfully controls...

Reliably sealing high and low temperature process fluids up to 425°C (800°F), the Type 2874HTC incorporates unique HTC (high-temperature, corrosion-resistant) metal bellows technology with non-contacting…

As the worldwide leader in spiral groove technology, John Crane is the first to utilize non-contacting seals...

The Type 1604 high-temperature, high-performance Type C, Arrangement 1, API 682 qualified cartridge seal is designed for high-temperature applications such...

The Type 1604HTC is an API 682 qualified single stationary bellows cartridge seal Type C, Arrangement 1. The Type...

The Type 1670 is a factory pre-set edge-welded metal bellows API 682 qualified cartridge seal with Alloy C-276 (UNS N10276)...

The Type 2609HTC and Type 3609HTC are dependable API 682 cartridge seals that utilize two impressive design innovations by...

Type 2609HTL is a dual unpressurized rotating bellows cartridge seal API 682 Type C, Arrangement 2. Type 3609HTL is a...

The Type 2715T is available as a single or dual high-temperature cartridge seal for Dean Bros. pump models R434, R454...

The Type 3604/3604HTC/3604HTCDP is a highly reliable dual face-to-face stationary cartridge seal for high-temperature refinery services that is fully API...

The 4615 is a metal bellows seal that replaces the EZ-1® General-purpose Single Cartridge Seal. It is a member of the 4600 family of cartridge…

Asymmetric formed metal bellows designed for general purpose use. General sealing duties include biotechnology, chemical processing, food processing, mining, oil,...

The 5600 Series is the first truly universal cartridge seal — and the modular family concept of John Crane's Universal Cartridge will change your approach…

The 5600 Series is the first truly universal cartridge seal — and the modular family concept of John Crane's Universal Cartridge will change your approach…

High-performance, low-emission, non-pusher seals, the Universal Cartridge 5600-1 Series is a modular cartridge seal family that includes interchangeable metal bellows...

The Type 604 is a high-temperature, general-purpose, stationary edge-welded metal bellows assembly for applications to 425C/800F. Available in either AM350...

The Type 604HTC high-temperature, corrosion-resistant welded metal bellows seal is a unique advanced technology for reliably sealing fluids in harsh...

The Type 606 is a high-temperature (to 425°C/800°F) rotating seal with the same high-strength design features as the Type 609....

The Type 609 is a high-temperature (to 425°C/800°F) rotating seal head assembly that incorporates all of the rugged features of...

The Type 609HTC is a high-temperature bellows assembly intended for those demanding applications where a dependable, high-strength, rotating seal is...

The Type 670 is an all-Alloy C-276 rotating bellows seal, providing high strength and excellent corrosion resistance. It is...

The Type 675 is a rotating titanium welded metal bellows assembly. The titanium bellows is ideal for chlorine, chlorine dioxide...

The Type 676, with a rotating AM350 stainless steel bellows, is well suited for mild corrosive and....

The Type 680 is the ideal seal for general-purpose applications. Its rotating Alloy-20 bellows provide corrosion resistance in a broad...

The Type GL1B is a double-ply formed bellows seal to meet the dimensional requirements of DIN 24960 L 1K. The...

The rotating mating ring features micromachined spiral grooves that compress an inert barrier gas and create a lifting force on...

The John Crane Type 2800EH is a non-contacting dual seal for non-turbo small-bore rotating equipment applications, meeting the requirements of...

Unique spiral groove technology patented John Crane spiral grooves are machined into the mating ring faces. A pressurized suitable inert...

The patented technology and tolerant design make these seals ideally suited for applications requiring specially engineered seals with performance even...

The John Crane Type 2800XP is a non-contacting dual seal for non-turbo, large-bore rotating equipment applications, and complements the John...

Type 2800XS is the designation used for specially engineered seals designed for operation outside the normal parameters of Types 2800XA and 2800XP...

The Type 2874 is an internally pressurized, gas-lubricated, non-contacting dual cartridge seal designed for use in API, ANSI and DIN...

The 28SC is a gas-lubricated, non-contacting secondary containment seal, which is applied as a component of a multiple seal...

The Type 2648 is a high-performance, low-emission cartridge seal designed to provide additional safety for hazardous applications and applications where...

The Type 34 is a short, DIN-balanced seal for general duty in the processing, refinery and petrochemical industries. Alternative seat...

The Type 3648 is a high-performance, low-emission cartridge seal designed for maximum containment of hazardous fluids and light hydrocarbons. Its...

The Type 4620P dual cartridge seal, available off the shelf the world over, brings a new...

The Type 48VBF is a single seal that can operate without a cooling water system(external heat exchanger, API Plan 23) in critical high temperature pumps…

Type 48 seals evolved from the successful, proven John Crane Type 8B1 design, the preferred choice for safe, reliable, unpressurized...

Type 48 seals evolved from the successful, proven John Crane Type 8B1 design, the preferred choice for safe, reliable, unpressurized...

Type 48 seals evolved from the successful, proven John Crane Type 8B1 design, the preferred choice for safe, reliable, unpressurized...

Dry-running, contacting seals employ a technology based on careful material selection and precise control of contact forces. They are...

Patented John Crane Laserface® interface groove technology. The Type 48XPVL is a new and innovative technology which has been...

The first truly universal cartridge seal, the Type 5610 will change your approach to sealing. Since the 5600 Series components...

The specially engineered, fully interchangeable wet/dry-running seal head extends the functionality of the 5600 product line for standard ANSI...

The specially engineered, fully interchangeable ear drive O-ring seal head extends the functionality of the 5600 series product line for standard ANSI and large bore…

The first truly universal cartridge seal, the Type 5620/5620P will change your approach to sealing. Since the 5600 Series components...

The Type 586 is a single, stationary cartridge-mounted seal assembly designed to contain the thick, corrosive and erosive slurries typically...

A DIN seal for general- and high-pressure duties in the processing, refinery and petrochemical industries. Alternative...

A DIN seal for general low- to medium-pressure duties in the processing, refinery and petrochemical industries. Alternative...

The type 8600 seal is available in single, dual pressurized and dual non pressurized arrangements for the most extreme pressures and speeds, from our high…

Designed to reduce installation time and errors, the compactness of the FFET cartridge seal ensures that it will fit all ANSI...

Safeseal JCS1 is a rugged, pump-integrated single seal designed for clean and lubricating fluids such as water, oils, solvents and...

Type JCS2 seals are designed to be used in pumps for environmentally hazardous and abrasive liquids when operating limits for...

A short DIN seal for general duties in the processing, refinery and petrochemical industries. Alternative seat designs and material options...

Patented single-spring drive to minimize clogging. RRAL/R is an API 682 qualified cartridge design....

Designed for high-pressure and high-speed applications, the RREP is suited to a whole host of refinery and process industry duties,...

The SAF is a double-acting seal particularly engineered to suit pumps, screens, knotters, sorters and pulpers in heavy process industries...

The Safeseal Type SB1 is a single-cartridge seal for use with clean fluids and lubricants. It is versatile and...

The Safeseal Type SB1A is a single-cartridge seal for use with clean fluids and lubricants. It is versatile, easy...

The Safeseal Type SB2A is a dual-cartridge seal. Its double-balanced design ensures the reliability and longevity of the seal...

The Safeseal Type SBW is a single-cartridge seal used with unpressurized quench. The Type SBW seal can be used...

The Safeseal Type SE1 is a customer-fitted (OEM standard) single, balanced component or cartridge seal designed for clean and lubricating...

The Safeseal Type SE2 is a customer-fitted (OEM standard) dual, balanced cartridge seal designed for the severe applications found in...

Type SEW is a seal operating on a non-pressurized water quench principle. It is designed for the most demanding applications in...

A short DIN seal for general duties in the processing, refinery and petrochmical industries. Alternative seat designs and material options...

A complete externally mounted PTFE seal with exchangeable face insert for use in extremely corrosive applications such as high concentrations...

A complete externally mounted PTFE seal with bellow integrated PTFE face for use in extremely corrosive applications such as high...

Types 20 and 20R shaft seals feature chemically inert materials in all areas and on all surfaces in contact with...

A wedge seal for use on corrosive applications, typically for chemical or hydrocarbon processing....

A balanced wedge seal for use on corrosive applications, typically for chemical or hydrocarbon processing....

A DIN seal for general and high-pressure duties in the chemical, refinery, petrochemical and pharmaceutical industries. Alternative seat designs and...

A DIN seal for general low- to medium-pressure duties in the chemical, refinery, petrochemical and pharmaceutical industries. Alternative seat...

Our Type 5840 single-cartridge seal encompasses many of the advantages associated with heavy-duty seal design, encased in a cost-effective...

Available as a single or double seal, the Type 5860 is designed to operate in the harshest abrasive slurry environments....

The Type 5870 is a single, balanced, O-ring pusher cartridge seal. It is designed to operate unsupported in all...

The Type 3740 mechanical seal is a family of split seals using the latest modular split seal technology from John Crane that...

The Type 3740D dry-running split seal is a mechanical seal designed for the large shaft run-out and harsh operating conditions commonly associated with top-entry vessel…

The Type 3740XL wet-running split seal is the extra large version of John Crane's successful Type 3740 split seal...

The Type 75FS dry- or wet-running fully split mechanical seal is designed specifically to eliminate process contamination and significantly reduce...

The Type 37FS fully split mechanical seal helps significantly reduce maintenance on larger, difficult-to-seal equipment. It is recommended for use on...

The Type 37FSB fully split mechanical seal helps significantly reduce maintenance on larger, difficult-to-seal equipment. It is recommended for use on...

Our inflatable backup seal is primarily used to hold process fluids, without leakage, while repairs are made to the primary...

The cost-efficient Type 32 vessel seal is an outside-mounted balanced single-component seal with self-lubricating seal faces. Neither external cooling...

Type 32 D vessel seals are outside-mounted, balanced single seals with self-lubricating seal faces. Neither external cooling, lubrication equipment nor...

Please see Type 32 product description for technical information of the Type 32 seal family. In contrast to Type 32,...

Type 5280 vessel seals apply Qualified Hygienic Design (QHD) and GMP standards and guidelines to enable the cleaning and sterilization of the product...

Type 5281 is part of the 5280 hygienic vessel seal family. Please find general technical and hygienic design features of...

Type 5282 is part of the 5280 hygienic vessel seal family. Please find general technical and hygienic design features of...

The heavy-duty Type 7700 is design-specific to serve critically important vessels in batch or continuous processes.

Type 7828 is part of the 7800 Vessel Seal Family. The 7800 family consists of heavy-duty, dual-pressurized, back-to-back, pusher...

Type 7848 is part of the 7800 Vessel Seal family. The 7800 family consists of heavy-duty, dual-pressurized, back-to-back, pusher...

The Type CK 725 is a dual-pressurized, cartridge seal for top-entry mixing and agitating equipment.

The Type CK 726(W/D) is a dual-pressurized, cartridge seal for top-entry mixing and agitating equipment.

Type CK 728 is a versatile, high-performance cartridge seal solution for steel vessels applicable in various industries, including high-purity pharmaceutical...

The Type CK 736 is a dual-pressurized, cartridge seal for glass-lined mixing and agitating equipment with a top-entry agitator shaft.

Type CK 738 is a versatile, high-performance cartridge seal solution for glass-lined vessels applicable in various industries, including high-purity pharmaceutical...