Though the wide range of equipment required by the chemical industry poses a challenge, it’s one well met by John Crane. We have hands-on experience with virtually every style and standard of rotating equipment, and we’ve developed a broad range of solutions with proven application success:
- Cartridge seals and support systems that meet global standards
- Products for use on non-metallic or glass-coated equipment
- Seals in exotic alloys that accommodate highly corrosive and abrasive applications
- Innovative filtration of process flow to ensure required process purity
- ATEX-compliant
- FDA-recognized seal faces and elastomers
Plus, our 200 global rapid-response facilities ensure that our chemical industry customers are never far from service, repair or support.
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A History of Innovation
Our dedication to innovative applied engineering is reflected in both our technology and our product range. In 1993, we built the industry’s most advanced testing center to qualify designs to the API 682 specification. Since then, we’ve also developed cartridge seals that are modular and those that provide zero-emissions operations. We’re committed to maintaining our position at the forefront of innovation and meeting our customers evolving needs through ongoing research and development.
Chemical Application Products
Specialized applications such as aggressive acids, dewatering chemicals and high-pressure, high-speed polymerizing fluids require extensive materials research and proven designs. John Crane products are specifically developed to meet the unique needs of customers in the chemical processing industry.
Chemical Industry Services
In addition to our highly engineered chemical seals, couplings and support systems, John Crane also offers a range of services designed to help improve reliability and reduce total cost of ownership:
Maintenance and Repair Services
John Crane’s Maintenance and Repair Services assists with critical systems checks and plant equipment maintenance as well as repair, removal and reinstallation services.
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Mechanical Seals Reliability Programs
John Crane’s Mechanical Seals Reliability Programs assess equipment reliability and performance, analyze root cause failures and recommend strategies for improvement.
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Asset Management Solutions
John Crane’s Asset Management software offers customers a holistic view of their current systems to help spot unleveraged opportunities.
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Product Training
John Crane provides a wide range of training courses that cover the correct procedures for installing, operating and maintaining equipment components.
Learn moreChemical Products
Showing 1–37 of 37 products
Type 2800EX
Externally Mounted, Gas-lubricated, Non-contacting Cartridge Double Seal For Pumps
Unique spiral groove technology patented John Crane spiral grooves are machined into the mating ring faces. A pressurized suitable inert...
Type 2800E
Non-contacting, Gas-lubricated Seals for Small-bore Rotating Equipment
The rotating mating ring features micromachined spiral grooves that compress an inert barrier gas and create a lifting force on...
Type 670
Low-temperature, All-Alloy C-276 Metal Bellows Shaft Seal for Highly Corrosive Fluids
The Type 670 is an all-Alloy C-276 rotating bellows seal, providing high strength and excellent corrosion resistance. It is...
Type 680
Low-temperature, General Duty All-Alloy-20 Edge-welded Metal Bellows Seal
The Type 680 is the ideal seal for general-purpose applications. Its rotating Alloy-20 bellows provide corrosion resistance in a broad...
Type GL1B
Formed Metal Bellows Seal for General Service
The Type GL1B is a double-ply formed bellows seal to meet the dimensional requirements of DIN 24960 L 1K. The...
Type 609
High-temperature, Rotating Edge-welded Metal Bellows Seal
The Type 609 is a high-temperature (to 425°C/800°F) rotating seal head assembly that incorporates all of the rugged features of...
Type 2609HTL/3609HTL
Dual Unpressurized and Pressurized Rotating Bellows Cartridge Seals (API 682 Type C, Arrangement 2 and 3)
Type 2609HTL is a dual unpressurized rotating bellows cartridge seal API 682 Type C, Arrangement 2. Type 3609HTL is a...
Type 285
Gas-lubricated, Non-contacting Single Seal For Cryogenic Pumps
As the worldwide leader in spiral groove technology, John Crane is the first to utilize non-contacting seals...
Type 5860
Heavy-duty Cartridge Slurry Seal
Available as a single or double seal, the Type 5860 is designed to operate in the harshest abrasive slurry environments....
Type 48SC
Dry-contacting Secondary Containment Seal
Dry-running, contacting seals employ a technology based on careful material selection and precise control of contact forces. They are...
Type 5610/5610Q/5610L
Universal Cartridge Seal Family — Single Cartridge O-Ring Seal
The first truly universal cartridge seal, the Type 5610 will change your approach to sealing. Since the 5600 Series components...
Type 7700
Modular Wet or Dry Running Face-to-Face Cartridge Seal for Mixer and Agitator Applications
The heavy-duty Type 7700 is design-specific to serve critically important vessels in batch or continuous processes.
Type 7828 (G, GD)
Modular Gas-lubricated Cartridge Seal for Mixer and Agitator Applications
Type 7828 is part of the 7800 Vessel Seal Family. The 7800 family consists of heavy-duty, dual-pressurized, back-to-back, pusher...
Type CK 725 (W,D)
Mixer and Agitator Cartridge Seal to Vessel Seal Standard DIN 28138 for Steel Chemical Reaction Vessels — No Bearing Integrated
The Type CK 725 is a dual-pressurized, cartridge seal for top-entry mixing and agitating equipment.
Type CK 726 (W,D)
Mixer and Agitator Cartridge Seal to Vessel Seal Standard DIN 28138 for Steel Chemical Reaction Vessels — with Integrated Bearing
The Type CK 726(W/D) is a dual-pressurized, cartridge seal for top-entry mixing and agitating equipment.
Type CK 728 (W, D, G, GD)
High-performance Modular Mixer and Agitator Seal for Steel Chemical Reaction Vessels — Standard Solutions Comply to Vessel Seal Standard DIN 28138
Type CK 728 is a versatile, high-performance cartridge seal solution for steel vessels applicable in various industries, including high-purity pharmaceutical...
Type CK 736 (W,D)
Mixer and Agitator Cartridge Seal to Vessel Seal Standard DIN 28138 for Glass-lined Chemical Reaction Vessel — with Integrated Bearing
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 (W, D, G, GD)
High-performance Modular Mixer and Agitator Cartridge Seal for Glass-lined Chemical Reaction Vessels — Standard Solutions Comply to Vessel Seal Standard DIN 28138
Type CK 738 is a versatile, high-performance cartridge seal solution for glass-lined vessels applicable in various industries, including high-purity pharmaceutical...
Type 32
Single Dry-running Mixer and Agitator Seal
The cost-efficient Type 32 vessel seal is an outside-mounted balanced single-component seal with self-lubricating seal faces. Neither external cooling...
WCH
Water-cooled Heat Exchangers
Water-cooled heat exchangers may be applied where water is readily available. Heat exchangers may be packaged together with seal support...
WCV
Water-cooled Heat Exchangers
Water-cooled heat exchangers may be applied where water is readily available. Heat exchangers may be packaged together with seal support...
K2S
Water-cooled Heat Exchangers
Water-cooled heat exchangers may be applied where water is readily available. Heat exchangers may be packaged together with seal support...
GR1/1C
Reservoirs for Chemical, Pharmaceutical and General Industries
Stainless steel pressure vessels (with or without internal cooling coil) designed for general industry applications. These reservoirs provide buffer/barrier fluid...
GR2/2C
Reservoirs for Chemical, Pharmaceutical and General Industries
Stainless steel pressure vessels (with or without internal cooling coil) designed for general industry applications. These reservoirs provide buffer/barrier fluid...
GR3/3C
Reservoirs for Chemical, Petrochemical, Pharmaceutical and General Industries
Stainless steel pressure vessels (with or without internal cooling coil) designed for general industry applications. These reservoirs provide buffer/barrier fluid...
GP-S/GP-D
Gas Panels for Chemical, Pharmaceutical and General Industries
Non-API gas control panel to filter, regulate and monitor gas supply to gas-lubricated pump seals....
Cyclone Separators
Cyclone separators are a device for removing particles from a seal flush line to protect the seal from the abrasive wear or clogging...
Safeunit™ Ultima
Seal Water Control and Monitoring System
Safeunit Ultima is specially designed to control seal water flow and pressure in extreme conditions. This makes it ideal for...
Safeclean
Seal Water Filter System
Plant seal water filtration system, maintaining clean water supply to improve the reliability mechanical seals and gland packing and also...
H-C
High-performance, Reduced-moment and Low-windage Design (API 671 and ISO 10441)
H-C couplings offer the lowest possible overhung moments and additional shrouding of the flexible elements and bolts. This arrangement...
TDK/TSK/TLK
T Series Stainless Steel Discs in Pre-assembled Cartridge for Medium to High Torque Applications (Metric)
John Crane’s Metastream TDK/TSK/TLK Series are metallic membrane (disc) couplings, incorporating industry...
C1065/C1070
Braided Graphite PTFE Packing
John Crane C1065 (Chemlon Graphite Fiber) and C1070 combine the chemical-resistant and low-friction generation characteristics of continuous PTFE filament yarns...
1332/1335
General-service Braided Synthetic Packings
John Crane styles 1332 and 1335 are cost-effective general-service packings constructed of the highest-quality synthetic fibers and lubricants....
894/1340
General-service Braided Graphite Packings
John Crane styles 894 and 1340 are cost-effective graphite general-service packing constructed of the highest-quality synthetic fibers and...
CVU/CVH
Automatic PTFE Packing Rings
John Crane CVU and CVH sets cover a wide range of fluids, including acids, caustics and solvents at high temperatures...
MLS-1
Mechanical Lip Seal
Triple Lip Seal Designed to seal positive displacement pumps moving high viscosity fluids.
Type SB2/Type SB2A
Heavy-duty Dual-cartridge Seals
The Safeseal Type SB2A is a dual-cartridge seal. Its double-balanced design ensures the reliability and longevity of the seal...