Product category:
Seals
News Release from: John Crane
Edited by the Engineeringtalk Editorial
Team on 22 August 2005
Effective sealing solutions on display
John Crane reckons it is perfectly placed to help today's industry achieve its aim of improved reliability coupled with lower costs and reduced emissions.
With many years experience in providing safe, effective and reliable sealing solutions to the international chemical processing sector, John Crane reckons it is perfectly placed to help today's industry achieve its aim of improved reliability coupled with lower costs and reduced emissions The company offers a genuinely comprehensive product portfolio which includes many items that boast full compliance with all the relevant ATEX, pressure vessel and CIP/SIP hygienic requirements, and these are backed by in-depth industry experience and an unparalleled global customer support facility
This article was originally published on Engineeringtalk on 20 Apr 2005 at 8.00am (UK)
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Cartridge seals on show in Harrogate
Leading the way in sealing solutions for chemical processing, John Crane will be demonstrating its latest products and customer support capabilities at the Chemical Engineering Show North 05.
Cartridge seal cuts costs and product leakage
The John Crane 4610 cartridge seal reduces maintenance and running costs, product leakage and equipment downtime.
Details will be available on Stand E13 at the Chemical Engineering Show North - Harrogate.
Few mechanical seals can make a greater contribution towards improved reliability than John Crane's family of cartridge seals.
Typical of these is the well-proven 5600 series whose modular construction allows them to adapt and provide reliable and effective solutions for differing applications.
They also enable the user to simplify inventory stocks and reduce both downtime and maintenance costs by using just one seal family throughout an entire plant.
For particularly demanding applications, the double-balanced design of John Crane's Safeseal SB2 dual cartridge seal ensures both reliability and longevity.
Further reading
Sealing system eliminates O-rings
Latest development to the John Crane GD Gas and Dry Lubricated vessel and reactor sealing system is the elimination of O-rings through a spring-energised PRP ring for secondary and shaft sealing
Non-contacting seal for steam turbine drivers
John Crane has introduced a non-contacting seal, Type 28ST, for steam turbine drivers, eliminating loss of valuable steam energy leakage caused by corrosion and shaft damage
Seal range additions for demanding applications
Two new designs have been added to the John Crane Type 5600 universal cartridge seal range, which has just past the milestone of 150 million hours of worldwide field operation
The SB2 is ideal for use with environmentally hazardous or abrasive fluids in such applications as evaporation or causticising, and it is also compatible with many other kinds of pumps and process equipment.
Offering a reliable and highly effective alternative to packings is the John Crane FFET cartridge seal.
A compact yet robust design ensures suitability to many chemical duties, including top-entry mixers where the liquid product may not provide continuous cooling and lubrication of the seal faces.
The use of premium seal face materials ensures low heat generation and dry-running thermal stability.
John Crane's 4600 cartridge seals combine maximum reliability with off-the-shelf availability, making them the ideal solution for general chemical applications.
This compact, single-cartridge seal provides maximum value without compromise and is designed for use in rotating shaft equipment, water-based pumps, close-coupled pumps, vertical water pumps and similar rotating shaft equipment.
John Crane also covers another key factor in guaranteed reliability with its versatile Safematic lubrication systems.
These can be configured to provide regular, effective and automatic lubrication for all types of equipment, from a single item through to a complete process line.
Ensuring minimum emissions is another key objective for John Crane.
Like the 5600 seals mentioned previously, John Crane's Type 48 seals are particularly effective in this area.
Proven in demanding applications for more than four decades, the Type 48 is specifically developed for single seal installations to attain maximum achievable controllable technology compliance in light hydrocarbon and other volatile organic compound applications.
They limit emissions to less than 500ppm, are available in cartridge or optional shaft-mounted configurations and in high, medium and low pressure versions.
Again with emission control in mind, John Crane's 28SC seals feature a patented spiral groove pattern on the mating ring faces which generates hydrodynamic lift to ensure a controlled film gap and minimal leakage to atmosphere.
The 28SC is a gas lubricated noncontact seal with a shaft-mounted unit running against a stationary, spiral grooved, silicon carbide mating ring.
John Crane is also able to help achieve cost reductions.
The company provides seal management contracts which shift the responsibility for reliable seal performance away from the customer and which operate on an extremely effective performance-reward basis.
The company's Gold Service customer support option also contributes towards this goal.
Available to all seal repair and service customers, Gold Service enable those customers to achieve significant increases in meantime between failure intervals and so reduce costs.
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