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	Welcome to U.S. Seal Mfg. one of the leading suppliers of mechanical pump seals
		is one of the leading suppliers of mechanical pump seals in the United States.
		Our mechanical seals promise long life, reduce maintenance, and provide automatic self-adjustment.
		We hope that you will use this Web-Site to research your seal inquiry.
	www.ussealmfg.com (216 words)

	TAPPI Website - Monitoring mechanical seal performance to reduce fixed costs, Solutions! Online Exclusives, June 2003
		A mechanical seal is a spring-loaded device that forms a seal between the rotating and stationary parts of different types of equipment, such as pumps, mixers, or reactors.
		The mechanical seal’s purpose is to minimize leakage of fluids and gases.
		Double cartridge mechanical seals are mounted separately on the same shaft, outside of the housing, or stuffing box, and provide maximum sealing for potentially hazardous materials, such as slurries, acids, and volatile organic liquids.
	www.tappi.org /s_tappi/sec_publications.asp?CID=4541&DID=526543 (3415 words)

	Mechanical Seals
		Mechanical seals are being used increasingly on fluid pumps to replace packed glands and lip seals.
		The mechanical seal requires a different shaft housing design arrangement compared to that for the other type of seals because the seal is a more complicated arrangement and the mechanical seal does not provide any support to the shaft.
		Mechanical seals mounted in pairs are used for sealing hazardous, toxic or abrasiv fluids and are often provided with clean flushing fluid between the seals.
	www.roymech.co.uk /Useful_Tables/Seals/Mechanical_Seals.html (873 words)

	Oil Analysis and Lubrication Dictionary
		Sealing is accomplished by a stationary primary seal ring bearing against the face of a mating ring mounted on a shaft.
		A mechanical seal with its seal head mounted outside the seal chamber that holds the fluid to be sealed.
		A mechanical seal in which the secondary seal is pushed along the shaft or sleeve to compensate for misalignment and face wear.
	www.oilanalysis.com /dictionary/default.asp?definitionsearch=Seal&Submit=Search (693 words)

	TREM Engineering – gas seals, o-ring and metal bellows mechanical seals manufacturers
		c) RO mechanical seal for sour crude oil transportation pumps and water injection pumps.
		TREM Engineering offers mechanical seals with reliability and service life, which have been proven (see page mechanical seals in use) to be equal to seals made by the best USA, German, and Japanese manufacturers, with an excellent value for money.
		TREM Engineering has won about 70% of the cartridge mechanical seal market for oil and gas industry Russia, CIS and some countries of Eastern Europe which proves TREM Engineering to be the leader among mechanical seals manufacturers in the oil and gas market.
	www.tremseals.com (534 words)

	Mechanical Seal Parts on ThomasNet.com
		A broad range of Mechanical Seal Parts resources are compiled in this industrial portal which proves information on manufacturers, distributors and service companies in the Mechanical Seal Parts industry.
		Mechanical seals would include OEM replacements, single & double cartridge mounted seals, single &...
		Company Profile: ISO 9001:2000 certified worldwide custom manufacturer of mechanical seal faces & materials including carbide available for water pump & pump parts.
	www.thomasnet.com /products/mechanical-seal-parts-96067061-1.html (572 words)

	Packing conversion
		This is the reason you use a mechanical seal on the water pump of your car and the pump in your household washing machine.
		In many cases the old packing and sleeve, or failed mechanical seal does not have to be removed to install a Split seal.
		If a dual seal is necessary, you can usually install a split mechanical seal behind the present seal to protect the product and area in the event the present seal fails.
	www.mcnallyinstitute.com /02-html/2-10.html (2287 words)

	Mechanical Shaft Seals
		While initial cost to purchase a pump with a simple seal may have been higher their were no post installation costs and the return for this investment could be realized immediately with virtually zero product loss over the life of the seal.
		Mechanical seals have evolved into a highly engineered science permitting use within virtually any application requiring a centrifugal or positive displacement pump.
		To promote maximum seal life, and to meet the most stringent environmental and safety issues, mechanical seals can be fitted with numerous combinations of accessories, auxiliary systems, and safety devices to compliment most applications dramatically reducing the potential for catastrophic venting of the pumpage to atmosphere.
	www.iglou.com /pitt/seal1.htm (540 words)

	Controlled Environments - Effective Mechanical Seal Performance Monitoring, Ron Mumbray, Rick Hull, Kevin Midgley, ...
		A mechanical seal is a spring-loaded device that forms a seal between the rotating and stationary parts of different types of equipment, such as pumps, mixers, or reactors.
		The mechanical seal’s purpose is to minimize leakage of fluids and gases.
		Double cartridge mechanical seals are mounted separately on the same shaft, outside of the housing, or stuffing box, and provide maximum sealing for potentially hazardous materials, such as slurries, acids, and volatile organic liquids.
	www.cemag.us /articles.asp?pid=402 (3234 words)

	Bonded Seals - Mechanical Seal Manufacturer
		Also sometimes referred to a Shaft Seal, an Oil Seal is a mechanical device that blocks the clearance gap between a bore and a moving shaft.
		Oil Seals are typically made of a carbon steel case that is mechanically and/or chemically bonded to a synthetic rubber sealing lip element.
		Also referred to as Gasket Seals, Plate Seals are typically comprised of a rubber sealing element mechanically bonded to a metal, plastic, or composite retainer plate.
	www.sealdynamics-oem.com /rubber-to-metal-bonded.htm (797 words)

	AES Mechanical Seals
		mechanical seals are part of a range of seals specifically designed to optimise the use of Silicon Carbide.
		mechanical seal has been designed to bridge the gap between a single and a double cartridge seal.
		Such designs are capable of sealing secondary fluids, at barrier pressures up to 10 psi g (2/3 of a bar g), but often experience limited lip seal life.
	www.sunair.com /aesseals.htm (435 words)

	Process Pump & Seal Training - Process & Industrial Training Technology
		Seal Driving and Spring Compression: The rotary portion of a mechanical seal is either positive or friction drive.
		Double Mechanical Seals: When the use of a an appropriate single mechanical seal becomes to expensive and when the pumpage dictates the use of an artificial sealing environment double seals are used as an economical and performance alternative.
		Most mechanical seals require the fluid to cool and lubricate between he sealing faces to remove seal generated heat.
	www.iglou.com /pitt/volume3.htm (1967 words)

	Bellows Seals Manufacturer,Bellows Seals Supplier,Elastomer Bellows Seals,Teflon Bellows Seals,India (Site not responding. Last check: )
		We are one of the leading manufacturers and exporters of all types of industrial products including bellows seals, elastomer bellows seals, teflon bellows seals, mechanical seals, mechanical shaft seals, spring seals, rubber seals and agitator seals, across the globe.
		The seal can be use regardless of direction of rotation since the driving torque is not transmitted through the coil spring, The required driving torque is enhanced through the unique rubber bellow which fits on the shaft through the interference fit between the collar, rubber bellow & the shaft.
		The seal can be use regardless of direction of rotation, since the driving torque is not transmitted through the coil spring, The required driving torque is enhanced through the unique rubber bellow which fits on the shaft.
	www.indiamart.com /hydroserve/mechanical-seals.html (1259 words)

	Mechanical Seal Selection - Goulds Pumps - ITT Corporation
		Pressure: The proper type of seal, balanced or unbalanced, is based on the pressure on the seal and on the seal size.
		To achieve maximum reliability of a seal application, proper choices of seal housings (standard bore stuffing box, large bore, or large tapered bore seal chamber) and seal environmental controls (CPI and API seal flush plans) must be made.
		Introduced in the mid-8o's, enlarged bore seal chambers with increased radial clearance between the mechanical seal and seal chamber wall, provide better circulation of liquid to and from seal faces.
	www.gouldspumps.com /pag_0016.html (449 words)

	Custom Mechanical Seals, Pneumatic Seals from Mechanical Research & Design - Inflatable Door Seals, Mechanical Seals ...
		Mechanical Research and Design is the industry leader when it comes to producing high quality mechanical seals, pneumatic seals, inflatable door seals and other custom air seals.
		This inflation pressure causes the displacement of the seal effecting a positive seal between the seal and the surface to be sealed.
		The "Sealfast" Mechanical Seal is manufactured to fit your application and is designed for long term usage where quality and durability are a must.
	www.mechanicalresearch.com /sealsi.html (343 words)

	Mechanical Seal Types - Goulds Pumps - ITT Corporation
		Its disadvantage is that ft's prone to secondary seal hang-up and fretting of the shaft or sleeve.
		The non-pusher or bellows seal does not have to move along the shaft or sleeve to maintain seal face contact, The main advantages are its ability to handle high and low temperature applications, and does not require a secondary seal (not prone to secondary seal hang-up).
		A disadvantage of this style seal is that its thin bellows cross sections must be upgraded for use in corrosive environments Examples are Dura CBR and Crane 215, and Sealol 680.
	www.gouldspumps.com /pag_0013.html (428 words)

	Mechanical Seal engineering - Leaking Mechanical Seal
		Seals were checked for size and lenght and spring stifness and as far as we can see they are the same.
		The seal was a new one, and it was an original Johnson pump seal.
		In a component seal, I assume, like the one you are talking about, the working height (the height of the seal when the spring is properly compressed) of the seal is critical.
	www.eng-tips.com /viewthread.cfm?qid=46370 (1066 words)

	AST 50 Outside Mechanical Seal
		The AST 50 seal fits all ANSI pumps and many others where a single outside seal is required because of an extremely corrosive environment or for low pressure service.
		The AST 50 Seal is designed for use where an outside seal is required,as a low cost replacement for seals made of exotic metals, in corrosive fluids which attack inside mounted mechanical seals, and in food service where the seal must be cleaned for sanitation.
		Because the AST 50 Seal is internally balanced, no expensive sleeves or steps in the shaft or modifications to the pump are required.
	www.astseals.com /AST50.htm (175 words)

	Mechanical Seal Manufacturers & Suppliers (Site not responding. Last check: )
		Mechanical Seals with Temperature of -40 to 220 Degrees Celsius
		Mechanical Seals with Temperature of -20 to 160 Degrees
		Mechanical Seals with Temperature of -50 to 150 Degrees Celsius
	www.globalsources.com /manufacturers/Mechanical-Seal.html (335 words)

	SOUTH AFRICA LEADING MECHANICAL SEALS IMPORTERS (Site not responding. Last check: )
		The business of the company is the importation of ISO 9002 Certified manufactured mechanical seals at a substantially reduced cost – this compared to other suppliers of mechanical seals in South Africa.
		Many of our clients are opting for equivalent seals to the branded mechanical seal manufacturers, as they benefit by receiving quality seals at substantial savings.
		We are proud to announce that we have recently formulated our a BEE company called MMAKGOSI MECHANICAL SEALS cc in conjunction with the skills development learner program whereby we train an unskilled lady up to the point of 25% shareholder.
	www.mechanical-seal-sa.com /index.html (241 words)

	mechanical seal, split seal, rotary seal, mixer seal, pump seals, bellows cartridge seal, gas seal, seal repair ...
		Costly power, the lack of supply, strict emission standards, are a few of the problems facing industry, that have made mechanical seals the fastest growing product in the fluid sealing industry.
		Superior is sensitive to those requirements and has developed an all-inclusive mechanical seal program to cover the requirements of our customers.
		A few of the seal types obtainable from Superior Seals are: double cartridge seals, single cartridge seals, high temp metal bellows cartridge seals, gas seals, split seals, mixer seals, and single rotary seals (dynamically balanced, pusher seals, high temp MB seals).
	www.superiorseals.com /seals.asp (352 words)

	Mechanical Seals Division
		Mechanical seals are precision devices, requiring in general more careful installation and higher initial investment than those of soft packings.
		These advances in seal technology go hand in hand with improved installation, maintenance and operating procedures, to enable considerable reductions in fugitive emissions and hence substantial savings for the operator.
		In response, the Mechanical Seals Division of the ESA has developed a Position Statement, to act as guidance about the legislation and its relevance to sealing systems.
	www.europeansealing.com /divisions/mechanical_seals.htm (764 words)

	Mechanical Seal Repair
		If your old seals have worked well, and have provided maximum service, there is no need to discard those seals.
		With the exception of some “throw away” seals, we can save you many maintenance dollars, by allowing you to have continued use of the original seal in your equipment.
		Our end result is always to provide our customer with a superior seal that meets or exceeds your requirement, and with a superior service experience.
	www.superiorseals.com /sealrepair.asp (270 words)

	Mechanical Seal, Seal faces
		Clearance between the seal outside diameter and the stuffing box bore is not sufficient.
		In dual seal applications, convection systems are not as efficient as pumping rings or forced circulation of the barrier fluid system.
		Pushing the seal gland along the shaft and against the stuffing box face can over compress the seal because of the friction between the shaft and the cartridge sleeve static elastomer.
	www.maintenanceworld.com /Articles/mcnally/cartridge-mechanical-seals.htm (672 words)

	Flex-A-Seal, Inc. - Manufacturer of World Class Mechanical Seals - Flex-A-Seal Company Profile
		We are a fully integrated seal manufacturer that conceptualizes, designs, manufactures, markets, sells, services and repairs our complete line of mechanical seals and related devices worldwide.
		Seal Repair - We pride ourselves on being able to repair or replace our own or competitor seals more quickly and economically than our competitors.
		Hermetic Bellows Devices - Flex-A-Seal has manufactured the highest quality welded bellows for mechanical sealing applications for over 20 years; the step into hermetic bellows vacuum, semiconductor, pharmaceutical, cryogenics and hazardous material handling applications was a logical and strategic move.
	www.flexaseal.com /profile.html (593 words)

	Non-External-Flushing Mechanical Seal
		The YOKOTA Non-External-Flushing Mechanical Seal is a new type mechanical seal which requires no external sealing water supply, being superior in corrosion resistance and wear resistance, and is easily installed into pumps.
		The cost for maintaining sealing water in the case of a double mechanical seal or the cost for adjusting leakage in the case of gland packing is eliminated.
		Due to the self-alignment mechanism between its loose ring and rotary ring, the sliding surface of the loose ring floats and efficiently follows the sliding surface of the rotary ring.
	www.aquadevice.com /english/05material_mechaseal.htm (657 words)

	Mechanical Seal engineering - Mechanical seal for a molten sulphur application.
		I would have a particular start-up proceedure that ensured that the seal was fully hot and the sulfur around the seal was liquified before the pump was started.
		we have provided mechanical seals in sulphur where only the seal faces comming in contact with the media the rest of the seal parts (spring etc.) completely isolated from the pumping media.
		The bellows should be rotating to knife though possible solids, and as mentioned before should be in a jacketed box, or at the very least the gland plate should be both jacketed and have provisons for a steam quench.
	www.eng-tips.com /viewthread.cfm?qid=148085&page=1 (853 words)

	Mechanical Seal engineering - High speed sealing application
		We are looking into designing a nitrogen purged gas seal for some of these where the gearbox seal is the limitation to run length.
		A standard mechanical seal would be less expensive and probably require no external support system.
		When we have tried to design more complicated seals for bearing housings, we have had more trouble and ended up going back to the old tried and true aluminum laby seal.
	www.eng-tips.com /viewthread.cfm?qid=154116&page=1 (844 words)

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