MECHANICAL SEALS FOR THE CHEMICAL INDUSTRY

Vessel, mixer and agitator seals

Our vessel, mixer and agitator seals enhance equipment safety and performance while complying with strict industry standards such as ISO 9001:2008, DIN and ATEX certification.

Our advanced technologies include wet-running, dry-running and cutting-edge gas lift-off, non-contacting mechanical seals. Our seals are equipped with optional features including support bearings, debris wells, temperature measuring probes and cooling flanges. Constructed from materials compatible with both steel and glass-lined applications, our seals maintain product purity and reduce potential risk in mission- critical chemical and petrochemical processes.

Pump Seals

Our mechanical pump seal range is among the most comprehensive in the industry, covering all chemical plant needs from compact elastomer bellows seals to dual cartridge seals that simplify maintenance.

Elastomer bellows seals offer cost-effective solutions for varied services. Cartridge seals are easy to install and available in single, dual, metal bellows and O-ring designs. Split seals suit large, hard-to-access equipment.

For extreme conditions, metal bellows seals deliver proven performance. When emissions must be controlled, non-contacting seals like the Type 2800 series ensure zero-emission compliance.

Compressor seals

Our product portfolio of compressor seals, either dry gas or separation, covers a wide range of applications and provides low-risk solutions alongside optimal performance and reliability.

All of our seals are built to meet all international and customer standards, including API 692, and, as a pioneer of dry gas seal technology, John Crane has more installations in turbomachinery products than any other sealing manufacturer.

Filtration

Quality is at the core of everything we do. Our filter systems and replaceable filter elements are manufactured adhering to the highest quality standards, ensuring reliability and efficiency in your operations.

We understand that filtration is more than just a process, it’s a critical pathway that uses our market-leading technologies to maximise equipment reliability, enhance productivity, reduce environmental impact and ensure sustainable operations by delivering scalable solutions.

Innovative filtration solutions, including process gas and liquid filtration systems, plus fully welded, stainless steel filter elements ensure process purity in process flows.

Power transmission couplings

Power transmission couplings are ubiquitous across various industries, each with unique power transfer and motion control requirements.

At John Crane, we understand that compliance with standards such as ATEX, ANSI, API 610 and API 671 is crucial, enhancing reliability, safety, and performance and ensuring regulatory adherence.

Seal face technologies

Our comprehensive suite of seal face technologies is designed to overcome rigorous sealing challenges, including limited seal face lubrication and severe service duties that adversely affect reliability, operational costs and seal life.

Derived from nature’s hardest substance, John Crane Diamond® uses ultrananocrystalline diamond, a thin film of genuine diamond grown via chemical vapour deposition, on the seal face. Only John Crane integrates this technology directly into our manufacturing process, bringing you expertise in seal and face treatments, along with reliable adhesion.