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Topic: Liquid Ring

	QualityVacuumPumps.com 903-848-9800. Right pumps, service, and price! Kinney, Travaini, Dry Vac, Torr Vac, Reitschle, ...
		A liquid ring vacuum pump is a non-pulsating pump that removes gases by means of a rotating impeller blade entering and leaving a ring of liquid.
		The constant rotation of the impeller causes it's vanes to enter and leave the liquid ring and ejecting the sealant from the pockets between the vanes.
		The lower limit of vacuum for a liquid ring vacuum pump is 30 mm Hg (Torr) using water as it's seal fluid.
	www.qualityvacuumpumps.com /liquid_ring.html (259 words)

	BOC Edwards Liquid Ring Pumps
		Liquid ring vacuum pumps are widely used in many industries for the evacuation of both dry and wet gases.
		Liquid ring pumps can handle condensable vapors or even small slugs of liquid entrained in the incoming gas stream without damage to the pump.
		Unlike some vacuum pumps, liquid ring pumps are suitable for continuous operation across the complete pressure range from atmosphere down to 25 torr (33 mbar).
	www.bocedwards.com /vacuum/liquid_ring_pumps/liquid-ring-pump.cfm (325 words)

	Vacuum Pump Theory by SIHI -- Condit Company
		The gas mixture fills the impeller cavity between the inside diameter of the liquid ring and the root of the impeller blade.
		As the impeller rotates, the impeller blade immersion in the liquid ring increases reducing the volume betweeen the liquid ring and the root of the impeller blade.
		During the compression cycle heat is being imparted to the liquid ring.
	www.conditcompany.com /sihitheory.shtml (308 words)

	Tech Reference - Tech Data (Site not responding. Last check: 2007-10-26)
		In a cylindrical housing, Partially filled with sealing liquid, a multi-blade impeller on a shaft is positioned eccentrically, port plates with inlet and discharge openings are positioned on either side of the impeller.
		A liquid ring is created by the centrifugal force generated by the rotating impeller.
		liquid ring vacuum pumps are all rated in ACFM, the actual capacity at the different vacuum levels as shown on the individual pump performance curves.
	www.dekkervacuum.com /reference/technical.htm (2783 words)

	Hi-vac Liquid Ring Pumps (Site not responding. Last check: 2007-10-26)
		As the impeller rotates the service liquid (which is continually supplied to the pump), is forced outwards by centrifugal force to form a liquid ring revolving concentric to the pump casing.
		Because of the eccentric position of the impeller, the liquid ring will move towards and away from the shaft, resulting in a liquid piston action which displaces the air or gases between the spaces of the impeller blades.
		As the impeller rotates, the liquid is thrown out by centrifugal force and air is drawn in through the suction port.
	www.hivaceng.com /liquid_ring-pumps.html (235 words)

	Liquid Ring Recovery Systems: Natural Gas Compressors (Site not responding. Last check: 2007-10-26)
		Having packaged in excess of 700 liquid ring packages, the "proof was in the pudding." The rest is history.
		Attributes found in liquid ring technology, have extended the life of the Panhandle field by 15 or more years.
		One of the unique and phenomenal qualities of the Liquid Ring Compression is found in the fact that gas moving through the pump is not the "coolant".
	www.liquidring.netfirms.com /about.html (744 words)

	Delta Process Equipment - Kinney Vacuum Pumps (Site not responding. Last check: 2007-10-26)
		Liquid ring pumps are sealed with liquid and are ideal for pumping wet gas mixtures and even slugs of liquid.
		Most liquid ring pumps require water cooling, but air-cooled systems are available.
		Vacuum boosters matched with liquid ring pumps have higher capacity and can pump at lower pressures than liquid ring pumps alone.
	www.designrouge.com /demo/delta_f/dpe/html/ind_2a.htm (279 words)

	KLRC Series (Site not responding. Last check: 2007-10-26)
		However, low-pressure performance is limited by the vapor pressure of the sealing liquid, which can be water, oil or process liquids.
		KLRC liquid ring vacuum pumps are ideally suited for pumping wet mixtures and even slugs of liquid.
		Liquid ring pumps often require water-cooling, but air-cooling systems are available.
	vacuum.tuthill.com /ProductCatalog/item.asp?id=687&groupid=66 (157 words)

	LE VIDE INDUSTRIEL - ECOVAC
		Drawn-up gases and vapours are compressed by the liquid ring pump until they reach atmospheric pressure.
		Along with ring liquid, they are then cooled in a heat exchanger (where the vapours are condensed).
		Condensates and ring liquid are recovered in the separator tank and returned to the liquid ring pump whereas saturated incondensables are exhausted through the vent.
	www.levideindustriel.com /page15.html (120 words)

	Liquid Ring Vacuum Systems
		KLRC liquid ring vacuum pumps with motors, boosters and accessories to provide high performance vacuum systems for chemical, pharmaceutical and industrial processes.
		Liquid Ring Vacuum Systems incorporate our axial flow liquid ring vacuum pumps with motors, boosters and accessories into complete vacuum systems.
		Booster/Liquid Ring Vacuum Systems incorporate our A series axial flow liquid ring vacuum pumps with vacuum boosters, where both pump and booster are driven by a single motor, simplifying system controls and increasing pumping speed at higher pressures.
	vacuum.tuthill.com /Products/Systems/Vacuums/liquid_ring.asp (111 words)

	Liquid Ring Vacuum Pump (Site not responding. Last check: 2007-10-26)
		AEC AV series liquid ring vacuum pumps and compressors are rotary machines in which liquid is made to act as piston.
		The liquid alternatively entering and clearing the rotor buckets at high speed constitutes a series of liquid piston that surge in rapid succession in and out of the rotor buckets.
		Discharge ports are at the point in the rotating cycle where the liquid again surges back into the rotor buckets, permitting the compression and discharge of air.
	www.airequipments.com /products6.htm (406 words)

	Dekker Vacuum Technologies, Inc. (Site not responding. Last check: 2007-10-26)
		Also available: the Vmax oil-sealed liquid ring vacuum pump systems with optional Variable Frequency Drive, refined and manufactured by the same people who pioneered the concept in the early 80's, the AquaSeal water-sealed liquid ring vacuum pump systems, the ChemSeal liquid ring vacuum pump systems for solvent recovery and the DuraVane vacuum pump systems.
		high-efficiency single-stage liquid ring monoblock vacuum pumps in capacities from 20-300 CFM (1.5 to 20 HP).
		solvent-sealed liquid ring vacuum pump systems for solvent recovery: these are full recovery (FR) packages using a variety of liquids such as solvents, water or chemicals as the sealing liquid.
	www.environmental-expert.com /technology/dekkervacuum/dekkervacuum.htm (870 words)

	atlantic fluidics® Liquid Ring Vacuum Systems
		OSR Liquid Ring Vacuum Systems are compact design oil-sealed systems for deeper vacuum than available with water-sealed systems.
		Environmental Remediation Liquid Ring Vacuum Systems expand on the OSR design by adding a separator tank with level gauge and instrumentation, transfer pump to remove excess collected groundwater and a filter to remove particulate matter prior to entering the pump.
		CVP Central Liquid Ring Vacuum Systems are compact, tank mounted systems utilized for medical/dental vacuum, laboratories, metal fabrication, vacuum packaging, or food processing applications.
	vacuum.tuthill.com /Products/Systems/Vacuums/AF_systems.asp (133 words)

	TeslaTech Resource Center \| Liquid Ring \| 990002
		Liquid Ring is very easily applied and can be used as strictly an occasional engine overhaul treatment or for smog reduction.
		One quart of Liquid Ring treats four quarts of motor oil (4 to l ratio of any crankcase capacity).
		Drain your old oil, change the oil filter, and fill the crankcase with Liquid Ring and new oil--substituting one quart of Liquid Ring for one quart of every 5 quarts of oil.
	www.teslatech.info /ttstore/products/990002.htm (438 words)

	Liquid Ring Pump Gas Handling (Site not responding. Last check: 2007-10-26)
		Select a liquid which either neutralizes or is neutral to the corrosive gas.
		Explosive gases can be handled very safely in a liquid ring pump since the gas remains cool and moist during compression.
		Chances of sparking are greatly reduced because of the compressant liquid and the lack of metal-to-metal contact in the pump.
	tristate.apogee.net /et/eauvlgh.asp (96 words)

	Three ring dioxane liquid crystalline compounds - Patent 4325830
		A compound of the formula: ##STR37## where R.sub.1 is alkyl or alkoxy and R.sub.2 is alkyl or alkoxy and where ring N is a benzene or a saturated cyclohexane ring.
		A nematic liquid crystal admixture comprising at least about 30 weight percent of a compound of the formula: ##STR40## where R.sub.1 is alkyl or alkoxy and R.sub.2 is alkyl or alkoxy and where ring N is a benzene or a saturated cyclohexane ring.
		Such compatible nematic liquid crystalline compounds in admixture with the aforementioned phenyl and cyclohexyl dioxanes would result in broader range nematic mixtures and better use of desired properties of dioxanes.
	www.freepatentsonline.com /4325830.html (2359 words)

	ABS Technology - We deliver the best engineering solution for you
		OILSYS systems includes a liquid ring vacuum pump from ours series TRH, TRS, TRM, TRV, a separator tank which also as a frame, heat exchanger and oil demister to remove oil fumes.
		As the impeller rotates - eccentrically to the liquid ring and casing - the volume between the blades increases creating vacuum.
		This make-up liquid also maintains the liquid ring and absorbs the heat energy for compression.
	www.abset.com /travaini.html (201 words)

	nash_elmo - liquid ring vacuum pumps, gas compressors, dry vacuum pumps, regenerative blowers, ejectors. (Site not responding. Last check: 2007-10-26)
		nash_elmo - liquid ring vacuum pumps, gas compressors, dry vacuum pumps, regenerative blowers, ejectors.
		These include: liquid ring vacuum pumps, gas compressors, dry vacuum pumps, side channel blowers, screw pumps, rotary vane pumps, regenerative blowers and steam jet ejectors.
		Uniquely designed engineered systems are also provided to meet specific needs in vent gas, digester gas, and condenser air removal applications.
	www.siemensvpc.com (107 words)

	Wiley::Liquid Ring Vacuum Pumps, Compressors and Systems: Conventional and Hermetic Design (Site not responding. Last check: 2007-10-26)
		3.1 Liquid ring vacuum pumps and compressors with radial flow.
		3.5 The behavior of liquid ring vacuum pumps in case of liquid being carried simultaneously.
		3.18 Compression of explosible gas-vapor mixtures with liquid ring compressors.
	www3.interscience.wiley.com:8100 /WileyCDA/WileyTitle/productCd-3527312498,descCd-tableOfContents.html?print=true (560 words)

	Liquid ring vacuum pumps
		Liquid ring vacuum pumps is a site designed with the user in mind.
		It has a simplistic layout where a user can browse through different liquid vacuum pumps companies concerning a wide range of liquid vacuum pumps form industrial and other.
		This site allows the user not only a listing of the top manufacturers of Liquid ring vacuum pumps but by mousing over the company name get a more detail account of the liquid vacuum pumps company.
	vacuum-pump-directory.com /liquid-ring-vacuum-pumps.php3 (102 words)

	Liquid Ring Vacuum Pump Service Company
		forcing the seal liquid to form a ring inside the casing (body) and with the rotor eccentric to the center of the casing (body), a liquid piston is formed in each
		This piston moves in and out from the hub of the rotor, When this piston moves out from the hub it creates a vacuum behind it pulling gas (normally air) in from the inlet prot.
		As the piston moves towards the hub of the rotor the gas that had been trapped in the vacuum stroke is now pushed out through the discharge port along with a percentage of seal liquid used in the cooling of the pump.
	www.armstrong-pump.com /pump_howitworks.htm (173 words)

	LIQUID RING VACUUM PUMPS (Site not responding. Last check: 2007-10-26)
		Diagnosis: Although liquid ring vacuum pumps should operate with clean filtered water, contamination by chemicals or solid particles can occur, leading to severe damage to the rotors.
		The resulting surface is highly resistant to corrosion, chemical attack and abrasion by solids entrainment in the water ring seal.
		Diagnosis: Solids entrainment in the liquid ring caused by carry over of solid particles leads to severe erosion of the end covers.
	www.belzona.com /lrvpumps.html (659 words)

	Liquid Ring Vacuum Pumps Busch Dolphin from West Technology UK
		Dolphin LU 0080 - 0450 A and LH 0020 - 1600 A are a series of sophisticated, single-stage (LU) and double-stage (LH) liquid ring vacuum pumps in base plate version.
		Anti-cavitation Protection We recommend the use of a vacuum relief valve or an AquaMin separator to protect the pump from the destroying effects of cavitation.
		Gas Ejector In combination with a liquid ring vacuum pump, the ejector enables the system to reach a deeper vacuum, down to 8 hPa (mbar).
	www.west-technology.co.uk /busch/buschliqring.htm (274 words)

	Sterling SIHI Australia - Liquid Ring Compressor (Site not responding. Last check: 2007-10-26)
		The SIHI liquid ring compressors are displacement compressors of simple and robust construction.
		Liquid ring compressors require a fluid (preferably water) as auxiliary or service liquid.
		Almost all gases and vapours are compressed, even those containing dust and liquids.
	www.sihipumps.com.au /products_1vtlrc.html (67 words)

	Liquid Ring Vacuum Pumps
		Since its inception, Hi-vac has supplied in excess of 5000 pumps to the mining industry in South Africa alone and continues to be an approved and reputable supplier to this industry in respect of supply, repair and spares contracts for all the mining groups.
		In addition, Hi-vac is a leading supplier of liquid ring vacuum pumps to the Atomic Energy Industry, who have the highest concentration of Hi-vac supplied stainless steel vacuum pumps in service.
		Hi-vac manufactures 35 models of pump ranging in capacity from 18m³/hr to 12 500m³/hr at a vacuum of 25mm HG (absolute), when the pump is combined with an air ejector a vacuum of 3mm HG (absolute) can be obtained.
	www.hivaceng.com (184 words)

	Liquid ring compressors (Site not responding. Last check: 2007-10-26)
		Liquid ring compressors operate with only one moving part, the impeller shaft assembly.
		The Liquid Ring is formed by the service liquid rotating concentrically in its casing.
		Process gas enters through the suction port, travels between the Impeller Blades and is compressed prior to ejection via the discharge port with a quantity of service liquid.
	www.tl.ru /~servo/English/sale_vk.htm (151 words)

	Puregas, LLC - Liquid Ring Compressor Dryers (Site not responding. Last check: 2007-10-26)
		PUREGAS' high capacity central office air dryers, featuring digital technology and liquid ring compressors, are the most cost-effective means of drying cable and preserving your budget.
		PUREGAS P30000D and P20000D operate with a single brass liquid ring compressor.
		The 15000DCO and 10000DCO air dryers also utilize a single brass liquid ring compressor to achieve continuous air flows of 15000 and 10000 SCFD (17698 and 11808 Liters/hr) respectively.
	www.puregas.com /Tel_prod_highcap.html (126 words)

	Liquid ring pump systems and compressors from Travaini Pumps USA
		Liquid ring pump systems and compressors from Travaini Pumps USA
		Travaini's liquid ring pump systems are designed to operate flawlessly under the most difficult conditions, even when highly saturated vapors or solid particles occur in the inlet stream.
		Being one of the few companies able to offer both liquid ring and rotary vane vacuum pumps, Travaini Pumps USA can objectively recommend the best unit for your specific application.
	www.travaini.com /liquid-ring-pump.htm (310 words)

	LIQUID RING VACUUM PUMPS (Site not responding. Last check: 2007-10-26)
		Bronze/Stainless steel impeller, Stainless steel shaft and all other contact parts in cast iron.
		Liquid Ring Vacuum Pumps for Higher capacities on request.
		# Service liquid flows are approximately, exact quantity will be determined by actual installations.
	www.acmevac.com /liquid.htm (120 words)

	Liquid ring vacuum pumps and compressors from Travaini Pumps USA
		Liquid ring vacuum pumps and compressors from Travaini Pumps USA
		Travaini's liquid ring vacuum pumps and compressors are designed to operate flawlessly under the most difficult conditions, even when highly saturated vapors or solid particles occur in the inlet stream.
		Travaini Pumps USA, Inc. has the broadest product offering of liquid ring vacuum pumps, compressors, rotary vane pumps, and the broadest selection of vacuum systems in the industry.
	www.travaini.com /liquid-ring-vacuum-pumps.htm (312 words)

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