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OWNER’S MANUAL FOR

DUOSEAL® VACUUM PUMP MODEL: 

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.

Gardner Denver Thomas, Inc. 
Welch Vacuum Technology
5621 W. Howard Street
Niles, IL  60714
Phone: (847) 676-8800 
Fax: (847) 677-8606 Technical Support (847) 588-2366 

 

 

 

 

 

E-Mail: gdwelchvacuum@gardnerdenver.com 

 

 

 

Part No. 67-2065 R1.0

Web-Page: www.welchvacuum.com   

 

 

 

 

 

Printed in USA

SAVE THESE INSTRUCTIONS

Manufactured in an 

ISO 9000 

Registered Environment

Summary of Contents for Welch DUOSEAL 1400B-01

Page 1: ...dy bursting and causing possible injury to personnel in the area Gardner Denver Thomas Inc Welch Vacuum Technology 5621 W Howard Street Niles IL 60714 Phone 847 676 8800 Fax 847 677 8606 Technical Sup...

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

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: ...e gas flow is substantially molecular in character The gas flow is then dependent upon the kinetic activity of the molecules to bring it to the intake of the pump 1 162 The Effects of Conductance It h...

Page 6: ...e yourself 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...

Page 7: ...f the volume of the mixture this depending upon the amount of air added condensation of the vapor is wither entirely avoided or substantial reduced 2 223 Pump Function With Gas Ballast In a pump funct...

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: ...2 Wired 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...

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

Page 15: ...ange 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 pu...

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

Page 17: ...ANE 24 1 41 1060 SHAFT PARTS LIST A Major Repair Kit Catalog 1400K 04 B Minor Repair Kit Catalog 1400K 03 Item 40 exploded view shown on page 18 1401E is a Mechanical Seal Kit which includes a mechani...

Page 18: ...FOR PART 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 8...

Page 19: ...n kit Cat No 141601 for models1400 1405 1376 1380 1402 Standard Exhaust Filter Use with pump model Dimension Catalog Number Diameter Height Filter Replacement Element 1392 1399 1400 1376 1380 1402 140...

Page 20: ...Height A2 Cat No 1 NW16 to 4 CFM 140 L min 3 75 5 25 8 25 541001 Stainless Steel Element for ISO NW 16 Trap 1 541921 Stainless Steel Element for ISO NW 25 and NW 40 Traps1 541922 Removable 3 quarter...

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: ...rotection 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...

Page 23: ...ion 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...

Page 24: ...if 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 po...

Page 25: ...have 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 inc...

Page 26: ...ntory 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 Faci...

Page 27: ...remarks 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 America...

Page 28: ...um Technology and receipt 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 connec...

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