Post on 26-Aug-2018
LABYRINTH SEAL PUMPS
• ACD’s Labyrinth seal design is reliable and provides trouble free centrifugal pump operation eliminating the need for a traditional mechanical seal.
•Incorporatesagastypesealthateffectivelyseals around the shaft to protect against static and dynamic liquid leakage.
• The insulating closure plate along with the staggered stainless steel distance piece provides an interrupted cold-transference path to prevent “ice bridging.”
• Optimized tolerance and design result in highefficiencyandverylowsealinggasconsumption.
• Designed as an exchangeable cartridge foraddedflexibility.
• The non-contacting seal design makes the sealing life virtually unlimited.
• Speeds up to 8000 RPM.• Discharge pressures to 800 PSI (55 bar).
• Single gas (w/ mixture out)• Dual Gas• Reverse Bias
• Seal gas panel
• Process applications where continuous operation is required.
• Pumping applications where contami-nation must be kept to a minimum or when safety does not allow process gas to be vented to the atmosphere.
• High suction pressure applications that exceed mechanical seal capability
•ACDoffersthereversebiassealconfigurationforhighpurity(Argon)applications.
Features & BeneFits
availaBle laByrinth seal conFigurations:
options
applications
• Labyrinth seal cartridge with replaceable sleeves
• High performance seal gas regulators• “Double” – staggered web stainless steel
intermediate• Insulating closure-plate• Labyrinth seal interconnecting piping• Babbitt labyrinth seal liner for Oxygen,
Nitrogen, Argon and Methane service.
• LIN• LOX • LAR• Methane (LNG)• Consult with ACD for other liquids
liquids pumped
typical scope oF supply
Manufacturing
2321 S. Pullman Street Santa Ana, CA 92705 USATel 800.525.4216 (USA only)Tel +1.949.261.7533 • Fax +1.949.261.6285acd@acdcom.com • www.acdcom.com
Bulletin No. ACD Laby-R1.15© 2015 ACD LLC, Printed in USASpeciFicaTionS SubjecT To change wiThouT noTice
global service
north america
atlantaatlanta, georgia, uSa+1 404.696.8113 • Fax +1 404.696.8116sales@cryoatlanta.com • cryoindservice.com
california (acd service) Santa Ana, California, USA+1.714.568.0201 • Fax +1.714.641.1921service@acdcom.com • acdcom.com
houstonhouston, Texas, uSa+1 281.590.4800 • Fax +1 281.590.4801sales@cihouston.com • cryoindservice.com
pittsburghimperial, pennsylvania, uSa+1 724.695.1910 • Fax +1 724.695.1926pittcryo@pittcryogenic.com • cryoindservice.com
red deerRed Deer, Alberta, Canada+1.403.352.4436 • Fax +1.403.352.4439sales@cryocanada.com • cryoindservice.com
torontoToronto, ontario, canada+1 416.502.1950 • Fax +1 416.502.1952info@cryocanada.com • cryoindservice.com
international
australiaDandenong, Victoria, australia+61.3.9791.7888 • Fax +61.3.9769.2788sales.au@cryoquip.com • cryoquip.com
BrasilSão paulo - Sp, brasilTel/Fax +55.11.2015.4288/4289 acd@cibrazil.com • cryoindservice.com
chinahangzhou, china+86.571.8619.4799 • Fax +86.571.8619.4789hci@mail.hz.zj.cn • cryoindservice.com
europe (acd cryo)ch-4142 Muenchenstein Switzerland+41.61.413.0230 • Fax: +41.61.413.0233sales@acdcryo.com • acdcryo.com
D-79415 bad bellingen germany+49.7635.8105.0 • Fax: +49.7635.8965info@acdcryo.com • acdcryo.com
united arab emiratesjebel ali Free Zone, Dubai, uaeTel: +971.0.4.880.8889acd@acdcom.com • acdcom.com
indiaa Division of Rhine engineering pvt. Ltd.Vadodara, gujarat, india+91.265.283 0113 • Fax +91.265.283 0112info@acdcom.com • acdcom.comKolkatta, west bengal, india+91.973.216 0010rmukherjee@acdindia.com • acdcom.com
KoreaYongin-si, gyeonggi-do, Korea+82.31.286.6114 • Fax +82.31.286.6118info@ci-korea.co.kr • cryoindservice.com
malaysiaShah alam, Selangor D.ehsan, Malaysia+60 (3) 5740.4800 • Fax +60 (3) 5740.4798cryogen@po.jaring.my • cryoindservice.com
LABYRINTH SEAL PUMPS
Pressure Regulator2 Places
Electric MotorTEFC
Motor Mounting Holes Electrical
Conduit Port
Seal Gas Mixture Out3/8" Tube
Discharge:Mates withFlat Face Flange
Suction:Mates withFlat Face Flange
Closure/InsulatingPlate, 0.25" Thick
Nitrogen SealGas in, 1/4" NPTFFar Side
Primary SealGas in, 1/4" NPTFFar Side
(Closure/Insulating Plate Removed for clarity)
1st Stage Seal
ExhaustMixture
Out
Primary SealGas Source
Regulator Regulator
Reference Pressure
From Pump Discharge
REVERSE BIAS GAS SEAL
1st Stage Seal
ExhaustMixture
Out
Primary SealGas Source
Regulator
Reference Pressure
SINGLE GAS SEAL W/ MIXTURE OUT
From Pump Discharge
Regulator
GN
1st Stage Seal
2nd StageSeal
ReferencePressure
ExhaustMixtureOut
Primary SealGas Source
Regulator
Reference Pressure
2 Gas
From Pump Discharge
reverse Bias gas seal single gas seal with mixture out
dual gas seal Flow
typical dual gas laByrinth seal pump
The Labyrinth Seal Component system is completely plumbed, assembled and factory tested. Only three fieldconnectionsarerequiredforeaseofinstallation.Performaceandinstallationdatashouldbeusedforreferenceonly.PleasecontactACDifcertifiedinformationisrequired.
For Pumping applications where product contamination must be kept to a minimum, or safety does not allow the process gas to be freely vented to atmosphere, a dual gas seal isamust.Thisdesignbuffersthefirststage of the labyrinth with product gas and the second stage with an external GN2 gas supply.