John Crane, Inc. Datasheets for Mechanical Seals

Mechanical seals including mechanical face seals, bellows, gas seals, and cartridge seals.
Mechanical Seals: Learn more

Product Name Notes
Non-contacting, Non-elastomer Metal Bellows Outward Pumping Dual Gas Seal for High-temperature Applications -- Type 2874NE A new, highly reliable gas-lubricated API 682 (ISO 21049) qualified high-temperature, non-contacting mechanical seal that utilizes internally pressurized outward pumping spiral groove face technology with high-temperature seal features such as...
Gas-lubricated, Non-contacting Single Seal For Cryogenic Pumps -- Type 285 As the worldwide leader in spiral groove technology, John Crane is the first to utilize non-contacting seals in cryogenic applications. The Type 285 can safely seal the most common industrial...
Asymmetric Formed Metal Bellows Designed for General Purpose Use -- Type 515E Asymmetric formed metal bellows designed for general purpose use. General sealing duties include biotechnology, chemical processing, food processing, mining, oil, oil refining, pulp and paper, pharmaceutical, wastewater treatment and water...
Dry Gas Seals -- Aura™ Aura™ reduces operational and transactional costs using a patented polymeric sealing device. Aura reduces leakage rates by up to 15 percent, lowering the total cost of operation while protecting the...
Metal Bellows Dry-running Secondary Emission Containment Seal -- ECS® Available in low- and high-temperature designs, the ECS® is a dry-running seal for emission containment and safety/backup that successfully controls VOC (volatile organic compounds) and VHAP (volatile hazardous air...
Fully Unitized, Heavy-duty Elastomer Bellows Shaft Seal -- Type 2100 Designed for demanding applications, the Type 2100 mechanical seal is a compact, unitized, single-spring elastomer bellows seal that offers maximum durability and performance. Ideal for use in centrifugal, rotary and...
General-duty Elastomer Bellows Shaft Seal -- Type 21 Our general-purpose Type 21 mechanical seal has become the industry standard for OEM designers. Automatic adjustment compensates for abnormal shaft-end play, run-out, primary ring wear and equipment tolerances. The Type...
Externally Mounted, Gas-lubricated, Non-contacting Cartridge Double Seal For Pumps -- Type 2800EX Patented John Crane spiral grooves are machined into the mating ring faces. A pressurized suitable inert gas is injected between the seals. As the shaft rotates, gas flows into the...
Non-contacting Secondary Containment Seal -- Type 28SC The 28SC is a gas-lubricated, non-contacting secondary containment seal, which is applied as a component of a multiple seal cartridge. Secondary containment seals are intended to contain primary seal leakage...
Universal Cartridge Seal Family — Single Cartridge Metal Bellows Seal -- Type 5615 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 to sealing. Since the 5600...
General-purpose Single Cartridge Metal Bellows Seal -- EZ-1® The EZ-1® universal package adapts easily to most media, as key markets include chemical, pulp and paper, wastewater, food processing and power generation. The benefits of the EZ-1 include:...
Externally Mounted, Gas-lubricated, Non-contacting Cartridge Double Seal for Pumps -- Type 2800EH The John Crane Type 2800EH is a non-contacting dual seal for non-turbo small-bore rotating equipment applications, meeting the requirements of standards such as ISO3069C and DIN 24960. Applications Process Pumps...
Non-contacting, Gas-lubricated Dual Cartridge Seal for Large-bore Pumps -- Type 2800XP The John Crane Type 2800XP is a non-contacting dual seal for non-turbo, large-bore rotating equipment applications, and complements the John Crane Type 2800E small-bore range. 2800XP seals feature new patented...
Non-contacting Gas-lubricated Dual Cartridge Seal for Large-bore Pumps -- Type 2800XA The patented technology and tolerant design make these seals ideally suited for applications requiring specially engineered seals with performance even beyond that of the standard range. If your process requires...
Non-contacting, Gas-lubricated Seals for Small-bore Rotating Equipment -- Type 2800E The rotating mating ring features micromachined spiral grooves that compress an inert barrier gas and create a lifting force on the primary seal faces. Gas-lubricated non-contacting seal faces operate without...
Single Stationary API 682/ISO 21049 Metal Bellows Cartridge Seal Type C -- Type 1604 The Type 1604 high-temperature, high-performance Type C, Arrangement 1, API 682/ISO 21049 qualified cartridge seal is designed for high-temperature applications such as hot hydrocarbons and crude oil fractionation products. The...
Single Stationary Welded Metal Bellows API 682 Cartridge Seal Type C -- Type 1604HTC The Type 1604HTC is an API 682/ISO 21049 qualified single stationary bellows cartridge seal Type C, Arrangement 1. The Type 1604HTC incorporates all-Inconel HTC technology to reliably seal high-temperature corrosive...
API 682 Category II and Category III, Type B, Arrangement 1 Single Rotating Metal Bellows Cartridge Seal -- Type 1670 The Type 1670 is a factory pre-set edge-welded metal bellows API 682/ISO 21049 qualified cartridge seal with Alloy C-276 (UNS N10276) rotating welded metal bellows. The seal is available with...
Multi-purpose Non-pusher Elastomer Bellows Seal -- Type 2 The Type 2 mechanical seal is available in single, double and balanced arrangements. An outside-mounted spring results in a compact working height that enables it to fit very short stuffing...
Fully Unitized Elastomer Bellows Shaft Seal -- Type 2106 The Type 2106 mechanical seal is a compact, unitized, single-spring elastomer bellows seal that not only offers durability and performance but also fast and easy installation and replacement. It retrofits...
API 682/ISO 21049 Cartridge Seals -- Type 2609HTC/3609HTC The Type 2609HTC and Type 3609HTC are dependable API 682/ISO 21049 cartridge seals that utilize two impressive design innovations by incorporating high-temperature, corrosion-resistant (HTC) sealing and unique high-temperature, live-loaded (HTL)...
High-temperature Single and Dual Metal Bellows Cartridge Seal for Dean Bros. Pumps -- Type 2715T The Type 2715T is available as a single or dual high-temperature cartridge seal for Dean Bros. pump models R434, R454 and R484, and are optimum sealing arrangements for hot-heat transfer...
Welded Metal Bellows Gas-lubricated, Non-contacting, Dual Cartridge Seal with Elastomeric Secondary Seals -- Type 2800MB The Type 2800MB is a state-of-the-art welded metal bellows, gas-lubricated, non-contacting seal for achieving 0.0 fugitive emissions for Maximum Achievable Control Technology compliance in new or existing large bore seal...
Non-contacting Dual Gas Seal Cartridge for Pumps -- Type 2874 The Type 2874 is an internally pressurized, gas-lubricated, non-contacting dual cartridge seal designed for use in API, ANSI and DIN large-bore seal chambers. ID to OD pumping spiral groove arrangement...
API 682/ISO 21049 Type C, Arrangement 3, Stationary Metal Bellows Cartridge Seal -- Type 3604/3604HTC/3604HTCDP 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 682 qualified. Dual stationary arrangements are a sealing option within...
Unitized Elastomer Bellows Seal -- Type 502 The Type 502 mechanical seal is one of the best-performing elastomeric bellows seals available. It is suitable for general service and provides excellent performance in a wide range of hot...
Single Cartridge Elastomer Bellows Seal -- Type 5611 The Type 5611 mechanical seal is the first truly universal cartridge seal — and its modular family concept will change your approach to sealing. Type 5600 Series components are interchangeable,...
Single Cartridge Elastomer Bellows Seal with Quench -- Type 5611Q The Type 5611Q mechanical seal is part of the 5600 universal cartridge seal family — and the modular concept of John Crane's Universal Cartridge will change your approach to sealing.
Separation Seal -- Type 83 The Type 83 is a dual-segmented carbon bushing assembly designed to prevent the migration of bearing oil to the dry gas seal cartridge. Normally applied as a double arrangement with...
Separation Seal -- Type 93FR The Type 93FR is a non-contacting carbon bushing designed to protect dry gas seals from bearing oil ingress. Segments are specifically designed to prevent oil migration. Separation gas (normally nitrogen...
Low-pressure Elastomer Bellows Unitized Seal Head for Small-diameter Pumps -- Type 6 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. Applications...
Labyrinth Seals -- Clearance Seals Through the careful application of materials and technical improvements, John Crane designs and manufactures enhanced thermoplastic and metallic labyrinth seals that facilitate a reduction in running clearances, improved safety, increased...
Dual Unpressurized and Pressurized Rotating Bellows Cartridge Seals API 682 -- Type 2609HTL/3609HTL Type 2609HTL is a dual unpressurized rotating bellows cartridge seal API 682 Type C, Arrangement 2. Type 3609HTL is a dual pressurized rotating bellows cartridge seal API 682 Type C,...
Non-contacting, Gas-lubricated Dual Cartridge Seal for Large-bore Pumps -- Type 2800XS Type 2800XS is the designation used for specially engineered seals designed for operation outside the normal parameters of Types 2800XA and 2800XP. The John Crane Type 2800XS is a non-contacting...
Non-contacting Gas Seal for Turbo Compressors -- Type 28AT Type 28AT: The original gas seal, with a design pedigree stretching back over 30 years and evolving gradually, installed and proven in thousands of compressors all around the world and...
Non-contacting Gas Seal for Turbo Compressors -- Type 28EXP Type 28EXP: The product for the most challenging and hostile environments with proven and independently audited performance to 425 bar(g). Type 28 compressor dry-running gas seals have been the industry...
Non-contacting Gas Seal for Steam Turbines -- Type 28ST Type 28ST combines proven rotating groove technology and high-temperature secondary seals to reduce steam leakage by nearly two orders of magnitude, as compared to traditional sealing devices, such as segmented...
Non-contacting Gas Seal for Turbo Compressors -- Type 28XP Type 28XP: Possibly the most popular seal in the range today, the Type 28XP builds on the 28AT design and seals medium to high pressures with improved chemical resistance. It...
Non-contacting Gas Seal for Vaporizing Liquids -- Type 28VL 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, creating a stable gas film...
Full Convolution Industrial-duty Elastomer Bellows Shaft Seal -- Type 1 With its proven track record of exceptional performance, the Type 1 elastomer bellows seal is widely recognized as the industry's workhorse. Suitable for a wide range of service conditions ranging...