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WELCH-ILMVAC

OWNER’S MANUAL FOR

DUOSEAL® VACUUM PUMP MODELS: 

1400B-01 & 3Z654

   

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 and causing possible 

injury to personnel in the area.

Part No. 67-2065 R1.0

Printed in USA

Welch-Ilmvac
5621 W. Howard Street
Niles, IL 60714
Phone: (847) 676-8800 (Technical Support)
Fax: (847) 677-8606
E-Mail: [email protected]
Web-Page: www.welchvacuum.com

Summary of Contents for DUOSEAL 1400B-01

Page 1: ...pressure will build up in the pump with the potential of the pump body bursting and causing possible injury to personnel in the area Part No 67 2065 R1 0 Printed in USA Welch Ilmvac 5621 W Howard Str...

Page 2: ...tions are found where failure to observe the instruction could result in damage to the equipment associated equipment and process These units conform to the SI International system of units of measure...

Page 3: ...vel 10 3 30 Shaft Seal Replacement 10 3 40 Repairing Oil Leaks 11 3 50 Repairing Vacuum Leaks 11 3 60 Drive Problems 11 Section 04 Trouble Shooting Guide 4 10 Poor Vacuum Readings 12 4 20 Noisy Pump 1...

Page 4: ...to drive your particular pump at the recommended speed 1 13 Pump Location The pump should be located preferably in a clean and well ventilated area and adequate space should be provided wherever poss...

Page 5: ...creates an impedance to the flow of gas This is particularly true at low pressures in the millitorr range where the gas flow is substantially molecular in character The gas flow is then dependent upo...

Page 6: ...with the function and action of the pump which you have now required Remove the intake and exhaust port plugs and temporarily provide a stopper for the intake and a dust cap for the exhaust Review the...

Page 7: ...ir though the gas ballast valve to the mixture of vapor and gas being compressed the pressure required for delivery past the exhaust valve is reached with a considerably smaller reduction of the volum...

Page 8: ...rich in hydrogen and observing a sudden change in pressure on an electrical gauge The difference in calibration of these gauges for air and other gases will produce a distinct change in the pressure...

Page 9: ...system The required frequency of changes will vary with the particular system Experiences with the process will help you determine the normal period of operation before an oil change is required 3 103...

Page 10: ...rubber stopper Turn the pump on and run the pump for 10 minutes Close the gas ballast 8 Check the vacuum reading of the pump by connecting a thermocouple gauge tube to the pump s intake If the pump is...

Page 11: ...ng surfaces cleaned of any nicks 3 50 Repairing Vacuum Leaks 3 501 Surface Preparation Good Vacuum seals are an essential and important attribute of a good mechanical pump A good seal is dependent upo...

Page 12: ...t a forced oil flush 5 If noise level is still unsatisfactory consult with WELCH Technical Service at 847 676 8800 Ext 1 4 30 Excessive Oil Mist 1 Check oil level Maintain the level between the two li...

Page 13: ...ired for 230V 60Hz 3Ph N A Wired for 230V 50Hz 3Ph N A Replacement Parts Shaft Seal Lip Seal 1401E 01 Shaft Seal Mechanical Seal 1401E Air Filter Screen 41 0890 Intake Chamber Cover Gasket 41 0383 Oil...

Page 14: ...14 Section 6 DIMENSIONAL DRAWING...

Page 15: ...nge High RPM direct drive vacuum pumps on the other hand experience a rapid fall off of pumping speed below 100 microns A comparison of the DuoSeal pumping speed curves shown below versus high RPM pum...

Page 16: ...Section 8 EXPLODED VIEW 16...

Page 17: ...A Major Repair Kit Catalog 1400K 04 B Minor Repair Kit Catalog 1400K 03 Item 41 exploded view shown on page 18 1401E is a Mechanical Seal Kit which includes a mechanical seal gasket and 3 screws ITEM...

Page 18: ...NUMBER 61 8540C Parts List for Model 61 8540C Item Qty P N Description 1 4 2 01 0308 Screw Hex Hd 5 46 18x1 2 2 2 41 1049 Pump Leg 3 1 41 3753 Window Oil Case 4 1 61 2278 Drain Valve 5 1 61 8540C Oil...

Page 19: ...Filter Use with pump model Dimension Catalog Number Diameter Height Filter Replacement Element 1392 1399 1400 1376 1380 1402 1400 1397 1374 2 5 5 5 2 5 6 25 9 1417L 1417G 1417H 01 1417L 1417G 1417H 0...

Page 20: ...1922 Cat No 1 Element must be ordered with trap A2 Distance between ISO NW inlet and outlet connections Dry Ice Cold Traps Removable 3 quarter center well for dry ice alcohol slurry do not use acetone...

Page 21: ...best of our knowledge the above listed component is not hazardous according to OSHA 1910 1200 or one or more state right to know lists SECTION 3 HAZARDS IDENTIFICATION Major Route of Entry Skin conta...

Page 22: ...ection in Section 8 of this MSDS Inhalation Vaporization is not expected at ambient temperatures This material is not expected toques inhalation related disorders underanticipated conditions of use In...

Page 23: ...in Section 8 and Disposal Considerations in Section 13 of this MSDS Do not touch damaged containers or spilled material unless wearing appropriate protective equipment Slipping hazard do not walk thr...

Page 24: ...splashing or spraying conditions are present Protective clothing may include long sleeve outer garment apron or lab coat If significant contact occurs remove oil contaminated clothing as soon as possi...

Page 25: ...e low acute and sub acute toxicities in animals Effects from single and short term repeated exposures to high concentrations of mineral oil mists well above applicable workplace exposure levels includ...

Page 26: ...ry This product and or its components are listed on the Toxic Substance Control Act TSCA Inventory SARA 302 304 The Superfund Amendments and Reauthorization Act of 1986 SARA Title III requires Facilit...

Page 27: ...arks SECTION 16 OTHER INFORMATION Revision 4 Revision Date 11 11 03 ABBREVIATIONS AP Approximately EQ Equal GT Grater Than LT Less Than NA Not Applicable ND No Data NE Not Established ACGIH American C...

Page 28: ...or possession does not convey any rights to loan sell or otherwise disclose said information reproduction or use of said information for any purpose other than that in connection with said information...

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