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
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...
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. General sealing duties include biotechnology, chemical processing, food processing, mining, oil, oil refining, pulp and paper, pharmaceutical, wastewater treatment and water...
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...
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...
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...
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...
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:...
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...
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...
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...
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...
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...
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...
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)...
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...
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...
The Type 3604/3604HTC/3604HTC DP 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...
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...
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,...
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.
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...
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...
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...
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...
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...
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...
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...
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...
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...