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Vacuum Pump Oils

WOB-L Piston Standard Duty Dry Vacuum Pumps

Welch Standard Duty* vacuum pumps use dry, oil-free WOB-L Piston technology to deliver industry-leading, strong pumping dynamics that support filtration, drying, aspiration, parts forming, and other rough vacuum applications.

There are 17 models available, with free air displacement from 0.4 cfm to 7.1 cfm, and ultimate vacuum pressure as deep as 5 Torr. All keep strong pumping speeds to near their ultimate vacuum pressure. Several models have vacuum controllers with gauges, and some are designed for OEM and production settings. Several models are UL component certified; all have 1PH motors with built in thermal overload protection.

Welch Standard Duty dry vacuum pumps can be used for such vacuum applications as cell culture media sterile filtering/aspiration, DNA/RNA/Plasmid extraction, vacuum ovens, vacuum filtering, vacuum bag parts forming, sampling, cell harvesters, pick and place, package integrity testing, turbidity testing, Rice porosity testing, air sampling and many other laboratory and industrial applications.

*Note: Standard duty dry pumps are not recommended for pumping organic, acidic or basic vapors.

Products [13]

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Welch DuoSeal Vacuum Pump Oil - 1407K-11: OIL DUOSEAL PUMP 1 QT
(0)
Welch DuoSeal Vacuum Pump Oil - 1407K-11: OIL DUOSEAL PUMP 1 QT
$38.33
In Stock
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Welch DuoSeal Vacuum Pump Oil - 1407K-15: OIL DUOSEAL PUMP 1 GALLON
(0)
Welch DuoSeal Vacuum Pump Oil - 1407K-15: OIL DUOSEAL PUMP 1 GALLON
$106.05
In Stock
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Welch DuoSeal Vacuum Pump Oil - 1407K-20: OIL DUOSEAL PUMP 5 GALLON
(0)
Welch DuoSeal Vacuum Pump Oil - 1407K-20: OIL DUOSEAL PUMP 5 GALLON
$409.50
Back Order. Please contact us for lead time.
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Welch DuoSeal Vacuum Pump Oil - 1407K-25: OIL DUOSEAL PUMP  55 GALLON DRUM
(0)
Welch DuoSeal Vacuum Pump Oil - 1407K-25: OIL DUOSEAL PUMP 55 GALLON DRUM
$3,384.15
Back Order. Please contact us for lead time.
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Welch Gold Oil ChemStar Harsh Chemical Vacuum Pumps - 8995G-11: OIL DIRECTORR GOLD  1 LITER
(0)
Welch Gold Oil ChemStar Harsh Chemical Vacuum Pumps - 8995G-11: OIL DIRECTORR GOLD 1 LITER
$90.83
Back Order. Please contact us for lead time.
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Welch Gold Oil ChemStar Harsh Chemical Vacuum Pumps - 8995G-15: OIL DIRECTORR GOLD 1 GAL  SERVICE
(0)
Welch Gold Oil ChemStar Harsh Chemical Vacuum Pumps - 8995G-15: OIL DIRECTORR GOLD 1 GAL SERVICE
$289.28
Back Order. Please contact us for lead time.
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Welch Gold Oil ChemStar Harsh Chemical Vacuum Pumps - 8995G-20: OIL DIRECTORR GOLD 5 GAL  SERVICE
(0)
Welch Gold Oil ChemStar Harsh Chemical Vacuum Pumps - 8995G-20: OIL DIRECTORR GOLD 5 GAL SERVICE
$1,291.50
Back Order. Please contact us for lead time.
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Welch Gold Oil ChemStar Harsh Chemical Vacuum Pumps - 8995G-25: OIL DIRECTORR GOLD 55 GAL SERVICE
(0)
Welch Gold Oil ChemStar Harsh Chemical Vacuum Pumps - 8995G-25: OIL DIRECTORR GOLD 55 GAL SERVICE
$12,099.15
Back Order. Please contact us for lead time.
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Welch Premium Oil Direct Drive Vacuum Pumps - 8995P-11: OIL DIRECTORR 1 LITER
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Welch Premium Oil Direct Drive Vacuum Pumps - 8995P-11: OIL DIRECTORR 1 LITER
$39.38
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Welch Premium Oil Direct Drive Vacuum Pumps - 8995P-15: OIL DIRECTORR PREMIUM 1 GALLON
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Welch Premium Oil Direct Drive Vacuum Pumps - 8995P-15: OIL DIRECTORR PREMIUM 1 GALLON
$120.23
In Stock
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Welch Premium Oil Direct Drive Vacuum Pumps - 8995P-20: OIL DIRECTORR PREMIUM 5 GALLON
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Welch Premium Oil Direct Drive Vacuum Pumps - 8995P-20: OIL DIRECTORR PREMIUM 5 GALLON
$523.95
Back Order. Please contact us for lead time.
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Welch Premium Oil Direct Drive Vacuum Pumps - 8995P-25: OIL DIRECTORR PREMIUM 55 GALLON
(0)
Welch Premium Oil Direct Drive Vacuum Pumps - 8995P-25: OIL DIRECTORR PREMIUM 55 GALLON
$4,608.45
Back Order. Please contact us for lead time.
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Product selection is the sole responsibility of the user, regardless of any recommendations or suggestions made by the factory or its distributors. The user shall make selections based upon their own analysis and testing regarding function, material compatibility and product ratings. Proper installation, operation and maintenance are also required to ensure safe, trouble-free performance. Orange Coast Pneumatics, Inc., Yorba Linda, CA 92886, Phone number : 714-312-5531, Business contact hours: 9 am - 5 pm (PT), Contact E-mail: [email protected]. USAThomas.com is brought to you by Orange Coast Pneumatics, Inc., a factory direct distributor for Thomas Products.

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