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Welch 0.9 cfm 0.1 Micron DuoSeal Belt Drive Dual-Stage Pump

Welch 0.9 cfm 0.1 Micron DuoSeal Belt Drive Dual-Stage Pump

These pumps have large oil reservoirs to dilute contaminants. Low pump rpm to reduces friction and wear while minimizing reservoir temperature to lessen chemical reactivity. The Welch 1400 DuoSeal belt drive rotary vane is a durable vacuum pump with a superior vapor handling capability. It offers an excellent ultimate pressure of 1x10-4 torr.

S Pumps for Corrosive Gases - Welch® Vacuum

S Pumps for Corrosive Gases - Welch® Vacuum

D 1 61-8108D Exhaust Ring H8995G-15 Gold Vacuum Pump Oil -1 Ga. E 1 41-1518 Small Rotor H331060-5 5' x 13/16" I.D. Vacuum Hose F 1 61-8250C Center Plate 1 61-8803 Belt Guard/Cover G 1 41-1682 Large Rotor 1 61-8698 Pump Base H 1 41-1688 Large Ring 1 1371A-01 Belt Guard & Base Kit I 1 41-2074 Pump Pulley with Set Screw 20 1 41-1736 Gas Ballast Valve

PUMP, CHEMSTAR, 1402N, PUMP ONLY - Vacuum Science Is Our .

PUMP, CHEMSTAR, 1402N, PUMP ONLY - Vacuum Science Is Our .

Welch Rotary Vane Vacuum Pumps; SW1402N. PUMP, CHEMSTAR, 1402N, PUMP ONLY. Unit Price: P.O.R. . Click here to view a list of remanufactured vacuum pumps available from The KJLC's Remanufactured Vacuum Pump Division. . Partial Without Gas Ballast 1.30 x 10-4 hPA 1.30 x 10-4 mbar 1.30 x 10-2 Pa 1.00 x 10-4 Torr. Cooling Method(s) Method

Welch Vacuum Pump - The Lab World Group

Welch Vacuum Pump - The Lab World Group

The Welch Vacuum Pump Model 2546B-01 B provides reliable oil free operation, with adjustable vacuum and pressure. This Vacuum pump is an ideal choice for applications requiring aspiration, desiccation, SPE, replace water aspiration, vacuum filtration (1-6 funnels), and vacuum drying. The WOB-L piston pump has an ultimate pressure of 60 Torr, and vacuum of 27.6"Hg, with a 1/4 .

Welch Dry Vacuum Pump - New Star Environmental

Welch Dry Vacuum Pump - New Star Environmental

Reliable WOB-L Piston pumps are perfect for many common laboratory vacuum applications. Features: Vacuum and Pressure - to 70 Torr (27.2"Hg). Includes Vacuum and Pressure Regulators and Gauges - simple to adjust and monitor vacuum level and delivery pressure.

Fully Refurbished Welch 1402 DUOSEAL Rotary Vane Vacuum .

Fully Refurbished Welch 1402 DUOSEAL Rotary Vane Vacuum .

Welch 1402 DUOSEAL Rotary Vane Vacuum Pump, Gas Ballast On Side, 115/230V, 60 Hz, Single Phase. The Welch DOUSEAL two-stage pumps are designed to be most efficient when operated at or near their ultimate blankoff pressure. The pump is designed to remove air from a vacuum system at atmospheric pressure to a deep vacuum.

OWNER'S MANUAL FOR DUOSEAL® VACUUM PUMPS .

OWNER'S MANUAL FOR DUOSEAL® VACUUM PUMPS .

DUOSEAL® VACUUM PUMPS MODELS: 1400, 1405, 1402, 1376, 1397, 1374, 1399, 1380, 1392 Contents: Installation Operation . required to communicate with your dealer or with Welch Vacuum be sure to include your order numbers for . when the gas ballast is open. Awareness of the possibilities will save time in setting up a system. Best performance .

WELCH Vacuum Pump - 6D752|8925A-46 - Grainger

WELCH Vacuum Pump - 6D752|8925A-46 - Grainger

Refrigeration service pump is designed for removing air and moisture from industrial and commercial chillers. Pump includes a gas ballast valve that inhibits condensation reducing corrosion, an On/Off switch, 3-wire cord, and oil. Directorr® Direct-Drive is lightweight and portable; ideal for rooftop jobs.

Welch® CRVpro Direct Drive Rotary Vane Vacuum Pumps .

Welch® CRVpro Direct Drive Rotary Vane Vacuum Pumps .

The CRVpro family includes all the features you'd expect in a direct drive rotary vane pump: gas ballast, forced oil lubrication, anti-suckback mechanism and thermal overload protection. Suitable applications include freeze drying, degassing, vacuum ovens and concentrators.

Welch BTpro100 Diaphragm Pump

Welch BTpro100 Diaphragm Pump

Welch BTpro100 Welch's BTpro vacuum pump series has a flow and vacuum level to provide fast performance for your size of rotary evaporator, glass reactor, purge oven, or winterization filtration apparatus. These chemical duty PTFE diaphragm pumps are oil-free. The pumping action and deep vacuum comes from the movement of PTFE diaphragms within PTFE heads. All wetted services in .

Shop for Welch Filter on Zoro.com

Shop for Welch Filter on Zoro.com

Vacuum Pump, HP 1, Displacement 17.7 cfm, Ultimate Pressure Torr 1 x 10-4, Intake Male SAE Flare 1-1/2 (F)NPT, NPT Inlet 1-3/4 In., Voltage 115/230, Amps AC 13.4/6/7, Overall Length 26 In., Overall Height 18-3/4 In., Overall Width 13-3/4 In., 60 Hz, 1 Phase, Tube Inside Dia. 1-5/8 In., Weight 205 lb., Oil Capacity 40 oz., RPM 525, Finish Blue/Gray, Ballast Gas, Valve Type Gas Ballast, That .

Antibodies & Protein Biology - Fisher Scientific

Antibodies & Protein Biology - Fisher Scientific

Gas Ballast Oil Kit (1) Gasket (2) Gasket Set (2) . Accessory for Welch Vacuum Pump Models 8803, 8804, 8890, 8905, 1399, 1400 Pricing & Availability; 27. Fisherbrand™ Pump Repair Kits. For use with vacuum pumps Pricing & Availability; 28. Fisherbrand™ Air Cadet™ 420 Series Diaphragm Pump Accessory, Pump Kit .

Shop for Welch Vacuum Pumps on Zoro.com

Shop for Welch Vacuum Pumps on Zoro.com

Vacuum Pump, HP 1, Displacement 17.7 cfm, Ultimate Pressure Torr 1 x 10-4, Intake Male SAE Flare 1-1/2 (F)NPT, NPT Inlet 1-3/4 In., Voltage 115/230, Amps AC 13.4/6/7, Overall Length 26 In., Overall Height 18-3/4 In., Overall Width 13-3/4 In., 60 Hz, 1 Phase, Tube Inside Dia. 1-5/8 In., Weight 205 lb., Oil Capacity 40 oz., RPM 525, Finish Blue/Gray, Ballast Gas, Valve Type Gas Ballast, That .

Rotary Vane Pump at Thomas Scientific

Rotary Vane Pump at Thomas Scientific

Rotary Vane Vacuum Pump, 195 liters/minute displacement at 60 Hz. 1.3 x 10-4 mBar partial pressure. Direct-drive, two-stage, oil-sealed, sliding-vane. Includes on/off switch, inlet and outlet ports, mode selector (High Vacuum and High Throughput), gas-ballast control (Closed, Low Flow and High Flow).

Shop for Welch Vacuum Pumps on Zoro.com

Shop for Welch Vacuum Pumps on Zoro.com

Vacuum Pump, HP 1, Displacement 17.7 cfm, Ultimate Pressure Torr 1 x 10-4, Intake Male SAE Flare 1-1/2 (F)NPT, NPT Inlet 1-3/4 In., Voltage 115/230, Amps AC 13.4/6/7, Overall Length 26 In., Overall Height 18-3/4 In., Overall Width 13-3/4 In., 60 Hz, 1 Phase, Tube Inside Dia. 1-5/8 In., Weight 205 lb., Oil Capacity 40 oz., RPM 525, Finish Blue/Gray, Ballast Gas, Valve Type Gas Ballast, That .

Direct Drive Two-Stage Rotary Vane Vacuum Pumps

Direct Drive Two-Stage Rotary Vane Vacuum Pumps

They are sometimes also referred to simply as rotary vacuum pump or vane vacuum pump. Welch Vacuum's laboratory two-stage rotary vane pumps are always an option when an ultimate pressure level from 0.5 mbar to 1x10-4 mbar is required. Depending on the pump model the pumping speed range lies between 1.8 m³/h and 60 m³/h.

DUOSEAL Two Stage - Refrigeration 1376B | Welch

DUOSEAL Two Stage - Refrigeration 1376B | Welch

Gas ballast for high vapor loads Rugged DuoSeal belt-drive vacuum pumps enable fast, thorough evacuation of refrigeration systems. Features high flow and deep vacuum with low pump RPM and large oil reservoirs for extended life and reduced maintenance.

Rotary Vane Pump Crv Pro 4 | Welch Vacuum Products

Rotary Vane Pump Crv Pro 4 | Welch Vacuum Products

The CRVpro family includes all the features you'd expect in a direct drive rotary vane pump: gas ballast, forced oil lubrication, anti-suckback mechanism and thermal overload protection. Suitable applications include freeze drying, degassing, vacuum ovens and concentrators. 3041-01 is wired for North American 115V, 60Hz operation.

Welch Vacuum : Owner's manual

Welch Vacuum : Owner's manual

Page 1. WELCH-ILMVAC OWNER'S MANUAL FOR DUOSEAL® VACUUM PUMP MODELS: 1402B-01 & 3Z655 WARNING Never block the Exhaust Port. If the exhaust port is blocked, pressure will build-up in the pump with the potential of the pump body bursting .

Gas Ballasting - What Is It & Why Is It Important? – Provac

Gas Ballasting - What Is It & Why Is It Important? – Provac

May 17, 2019 · Properly using a gas ballast valve as found on a mechanical oil sealed vacuum pump has been considered by some to be an arcane art and practiced blindly much of the time. Actually, gas ballasting is a very simple operation and when properly applied can keep vacuum pumps in optimal conditions even when used in wet processes that can potentially contaminate the oil with condensation. When vacuum .

Antibodies & Protein Biology - Fisher Scientific

Antibodies & Protein Biology - Fisher Scientific

Gas Ballast Oil Kit (1) Gasket (2) Gasket Set (2) . Accessory for Welch Vacuum Pump Models 8803, 8804, 8890, 8905, 1399, 1400 Pricing & Availability; 27. Fisherbrand™ Pump Repair Kits. For use with vacuum pumps Pricing & Availability; 28. Fisherbrand™ Air Cadet™ 420 Series Diaphragm Pump Accessory, Pump Kit .

Welch 1402 DuoSeal Belt Drive Pump | ANDbio

Welch 1402 DuoSeal Belt Drive Pump | ANDbio

Welch 1402 DuoSeal Belt Drive Pump Manufacture Specification Applications Vacuum Ovens, Glove Boxes, General Laboratory Vacuum Type Belt-Drive Vacuum Pump Free Air Displacement cfm (l/min.) @60Hz 5.6(160) Ultimate Pressure 1 x 10-4(0.00013) Pump RPM 525 Oil Capacity 2.25(2.1) Motor Horsepower (watts) 1/2(370) Adjustable Vac. / Gas Ballast Yes Tubing Needed 13/16(21) Intake .

PUMP, CHEMSTAR, 1402N, PUMP ONLY - Vacuum Science Is Our .

PUMP, CHEMSTAR, 1402N, PUMP ONLY - Vacuum Science Is Our .

Welch Rotary Vane Vacuum Pumps; SW1402N. PUMP, CHEMSTAR, 1402N, PUMP ONLY. Unit Price: P.O.R. . Click here to view a list of remanufactured vacuum pumps available from The KJLC's Remanufactured Vacuum Pump Division. . Partial Without Gas Ballast 1.30 x 10-4 hPA 1.30 x 10-4 mbar 1.30 x 10-2 Pa 1.00 x 10-4 Torr. Cooling Method(s) Method

Busch 0250 Rotary Vane Vacuum Pump | Busch Pumps | Rotary .

Busch 0250 Rotary Vane Vacuum Pump | Busch Pumps | Rotary .

Busch 0250 is an oil sealed rotary vane pumps with a free air displacement of 180 cfm and a nominal pumping speed of 170 acfm.. The 0250 vacuum pump is an oil-sealed single stage, air cooled, and direct driven rotary vane mechanical vacuum pump with a 10hp motor .It is reliable and operates at 74 dB(A) noise level. Rebuilt or Remanufactured Busch 0250 Vacuum Pumps:

N - Vacuum Pump Supply llc

N - Vacuum Pump Supply llc

Welch Vacuum Pump Repair Kits. Welch 1373 Repair Kits and Parts; Welch 1399 Repair Kits and Parts; Welch 1400 Repair Kits and Parts; Welch 1402 Chemstar Parts; . Alcatel 52563 SPRING,GAS BALLAST for 2004A,2008A,2012A,2020A,2004AC,2008AC,2012AC,202; Alcatel 52563 SPRING,GAS BALLAST for 2004A,2008A,2012A,2020A,2004AC,2008AC,2012AC,202 Price: 2 .

Aluminum Washer Gas Ballast - Capitol Vacuum Parts

Aluminum Washer Gas Ballast - Capitol Vacuum Parts

Small Vane, HP for the Varian DS102/202/302 and Galileo D5/8/12.

Gas Ballasting of Mechanical Oil Sealed Rotary Vacuum Pumps

Gas Ballasting of Mechanical Oil Sealed Rotary Vacuum Pumps

Jun 15, 2013 · The correct use of the Gas Ballast valve on a mechanical oil sealed rotary vacuum pump has always been seen as "black science" or just plain guesswork. It is a very simple device and when used correctly can keep a vacuum pump working well even though it may be used on a very wet process and the oil becomes contaminated with condensed vapors.

Pumps of Choice V2

Pumps of Choice V2

WELCH® vacuum pumps are known worldwide for Ruggedness and Dependability. High capacity, two stage rotary vane vacuum pumps get you on and off the job fast. • Deep vacuum for fast evacuation and dehydration • Precision machined from the most durable materials • Gas ballast for high vapor loads

Vacuum - Welch 1402 Duoseal Vacuum Pump

Vacuum - Welch 1402 Duoseal Vacuum Pump

Auction consisting of: 1- Welch 1402 Duoseal Vacuum Pump w/ GE 1/2hp. 120VAC, C1153 Motor. Used Condition. This auction is for a Welch 1402 Duoseal Vacuum Pump that is powered by a GE 1/2hp. 120VAC, C1153( No. Motor. The Pump and Motor powers up and the vacuum draw is'strong' to the touch with a hand held to the inlet.

Welch™ MP 601 T Vacuum Pump Width: 390mm Welch™ MP .

Welch™ MP 601 T Vacuum Pump Width: 390mm Welch™ MP .

Use these pumps for standard duty applications. Welch Ilmvac™ MP 601 T Vacuum Pumps have been developed specifically to meet the requirement for oil-free vacuum generation.