Welch-vacuum 1376N Chemstar Manuel d'utilisateur

WELCH-ILMVACOWNER’S MANUAL FORCHEMSTAR® VACUUM PUMP MODELS: 1400N WARNINGNever block the Exhaust Port.If the exhaust port is blocked, pressure will

103.203 Forced Oil Flushing Procedure 1. Check the oil level, if the oil level is well above the fi ll mark (This may indicate either the pump has be

113.40 Repairing Oil Leaks3.41 Location, Cause and Effect Oil leaks may develop wherever two mating faces are sealed with a gasket. Such seams may

12Section 4: TROUBLE-SHOOTING GUIDE4.10 Poor Vacuum Readings 1. Disconnect vacuum pump from your vacuum system. 2. Obtain 1 gallon of CHEMSTAR oil,

Section 5: QUICK REFERENCE CHARTSpecifi cationsFree Air Displacement, L/M (CFM) 25 (0.9)Gas Ballast YesUltimate Pressure, Torr (mbar) 1 (1.3)x10-4Numbe

SWITCH7.51715.510.592.754.753.562.186.622.569.6 ± .34.881.251/4 NTP CONNECTIONSFOR FILTRATION SYSTEM1/4 OD TUBECOMPRESSIONFITTING FORPURGECONNECTION.6

15Section 7: PUMPING SPEED CURVESHIGH EFFICIENCY PUMPINGCHARACTERISTIC OF CHEMSTAR® PUMPSThe low RPM design of CHEMSTAR vacuum pumps makes it possible

PARTS LIST FOR MODEL 1400NITEM QTY P/N A* B* DESCRIPTION 01 1 2-01-9306 Soc. Hd. Screw 5/16 - 18x3/8 02 1 41-2191

Section 9: ACCESSORY SECTIONExhaust FilterFilters oil mist from pump exhaust / Easy ReplacementReduces pump noise / Filters to 0.3 micron particle

18Coaxial TrapsReduces oil back streaming / Stainless steel construction / Easy Replacement of ElementISO Size Capacity Diameter Height A2 Cat.No.

Section 10: MSDS-Sheet for DIRECTORR® PUMP OIL19THE INFORMATION HEREIN IS GIVEN IN GOOD FAITH, BUT NO WARRANTY, EXPRESS OR IMPLIES, IS MADE.Revision

2INSTRUCTIONWARNING AND CAUTIONPLEASE READ BEFORE OPERATIONWhile reading your manual, please pay close attention to areas labeled: WARNING AND CAUTION

20THE INFORMATION HEREIN IS GIVEN IN GOOD FAITH, BUT NO WARRANTY, EXPRESS OR IMPLIES, IS MADE.Revision Date: 04/23/09 Rev. B P/N:

21THE INFORMATION HEREIN IS GIVEN IN GOOD FAITH, BUT NO WARRANTY, EXPRESS OR IMPLIES, IS MADE.Revision Date: 04/23/09 Rev. B P/N:

Section 11: APPLICATION BOOKLETUSING YOUR CHEMSTAR VACUUM PUMP WITH CORROSIVE GASESThank you for choosing the CHEMSTAR vacuum pump from Welch Vacuum

23Part 1 Health & SafetyThe pumping of corrosive gases not only can shorten the service life of a vacuum pump, but also if not operated properly,

24 WARNINGDIRECTORR Gold Oil is not inert and should not be used in environments involving a high percentage of oxygen. The use of DIRECTORR Gold O

25Welch offers two types of cold traps - dry ice slurry or liquid nitrogen traps. For CHEMSTAR pump models 1402N-01 or 1376N-01, the dry ice slurry t

26C 3. Particulate Trap With A Filter ElementIn some corrosive gas applications, particulates are generated. A particulate trap with a fi lter elemen

27 CAUTIONBe sure the pump is operating at a pressure of 10 Torr or lower for continuous operation. If not, discuss application with Welch Technica

CAUTIONHydrous acids are well-known for corroding the interior of the vacuum pump. Particularly if acidifi ed oil is allowed to remain in the pump

29C. Halogens: Chlorine (Cl2), Bromine (Br2).If water is not present, small gas fl ows of chlorine or bromine can be pumped without major diffi culty.

TABLE OF CONTENTS Section PageSection 01 - Installation 1.10 Introduction 4Section 02 - Operation 2.10 Starting

When pumping ozone, keep the concentration passing into the pump below 100 ppm. This can be accomplished either by miniaturizing the experimental pro

31Part 5 Recommendations For Pumping Particulate-Containing Gas StreamsA. Particulate Trap With A Filter ElementA particulate trap provides positive

4. Flushing the pump is carried out by adding a cup of CHEMSTAR vacuum pump oil through the intake (IN) port while the pump is turned on for 5 to 20

33Part 9 Toubleshooting Your CHEMSTAR PumpA. Poor Vacuum Reading1. Disconnect vacuum pump from your vacuum system.2. Obtain 1 gallon of DIRECTORR G

WELCH-ILMVACVacuum Pump Repair Facility5621 W. Howard StreetNiles, IL 60714Phone: (847) 676-8800 (Technical Support)Fax: (847) 677-8606E-Mail: gdwelch

4Section 1: INSTALLATION1.10 Introduction This manual has been complied not only for the care and maintenance of the CHEMSTAR pump now in your posses

51.15 Electrical Power1.151 Power Source Review Review the power source and the motor rating to be sure they agree in voltage, phase and frequency.

61.17 Traps (See Accessory section in the back of this manual.)1.171 The need for a Trap Where corrosive vapors or large quantities of condensable

72.20 Operation and System Optimization2.21 High Pressure Operation CHEMSTAR two-stage pumps are designed to be most effi cient when operated at or

82.226 Other Forms of contamination control The application of the gas ballast is a moderate and very successful method for the removal of condensab

9Section 3: MAINTENANCE3.10 Vacuum Problems3.101 Pressure Determinations Leakage, contamination and unusual outgassing are the general causes of prob