Aftermarket Catalog - Welch Vacuum

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Traps & Inlet FiltersProtect Your Vacuum SystemForeline traps are used to prevent harmful substances generatedor resident in vacuum systems from damaging vacuum pumpsand/or your work:Pump DamageLiquid, water, solvents, and acids can cause serious damageto a vacuum pump:• Vapors can condense to liquids within vacuumpump as a natural result of gas compression• Liquid can be accidentally aspirated into the pump• Particulates can become lodged in a pump mechanismProtect, Improve YourVacuum ApplicationOil Back StreamingOil molecules can migrate from an oil lubricated vacuum pumpback into the vacuum system when operated at sustained vacuumlevels of 1x10 -2 torr (1.33x10 -2 mbar) or deeper for long periods.Pump Shutoff Back MigrationWhen a vacuum pump is shut off, contamination (oil, linesubstances) can back up into your work if unprotected bypump/system anti-suckback devices and traps.Pump EfficiencyCold traps lower vapor pressure, enabling higher vacuum withthe same work from the pump.TRAP SELECTION TABLEPotential PumpContaminantsWaterOrganicsAcidicOil Backstreaming 2Acid Neutralization Trap 1Dry Ice Slurry(-79˚C)Cold TrapsLiquid Notrogen(-198˚C)Cold TrapYourApplicationKeyExcellentFairNot RecommendedNotes:1. Limits Pressure to 10 -2 torr2. Prevents pump oil from contaminating Application duringprolonged deep vacuum or pump shutoff.Acid NeutralizationTrapDry Ice / Isopropanol Trap (-79º)• Recommended forfreeze dryers,vacuum manifolds,concentrators, etc.• Uses dry ice or liquidnitrogen as refrigerant• Removable centermake trappingsurface easyto cleanDRY ICE/LIQUID NITROGEN COLD TRAP is an effective foreline cold trap forvacuum manifolds or Schlenk Lines. The trap has a large 3 quart (2.8 liters) centerwell for the dry ice/isopropyl alcohol slurry or liquid nitrogen; traps up to 1.5 litercondensate. With dry ice cold temperature may be maintained for up to 12 hoursdepending upon the vapor load. With liquid nitrogen cold temperature can bemaintained for up to 2 hours depending upon the vapor load.Tubing Needed Diam. Height Diameter In/Out Offset Trap CAT. No.7/16" 10 8.25" 10.75" 3.5 1420H-14Tubing CAT. No. 331040-5Acid Neutralization Trap• ISO NW flangeconnection• Calcium Hydroxideelement• Element changesfrom white tobluish-transparentwhen spent• Configure with priorcold trap to reduceloadingISO Size Capacity TrapReplacementElement CAT. No.Pump Connector Kitfor Trap CAT. No. 1.NW 16 To 2 cfm (57 l/min.) 1420H-21 1420E-02 302201NW 25 To 12 cfm (340 l/min.) 1420H-20 1420E-01 302202Note: 1. Includes hinge clamp, centering ring and elbow. Use with ChemStar ® vacuum pumps.Application Note for Cold TrapsCold traps employing a dry ice slurry or liquid nitrogen are effective as long as the refrigerant level is maintained. If the trap warms up while thepump is running, all of the trapped condensables will be ingested by the vacuum pump, contaminating the oil.Cold traps must be cleaned out at the end of each day. If the pump is run overnight, the trapped condensables will ultimately be ingested by thepump as the trap warms up. Cleaning a Dry Ice Slurry/Liquid Nitrogen trap is easy. The steps are: 1. Turn off the pump. 2. Leak air into the trapfrom the application side. 3. Remove the center well and polypropylene ring to a hood. The center well can be washed off into a beaker or thecondensables can be allowed to evaporate in the hood or added to the laboratory waste.10Welch-Ilmvac
Traps & Inlet FiltersParticulate, Hydrophobic In-line FiltersThe filters are an economical solution to protect your piston vacuum pump from fineparticulates and aerosols to 0.2 microns in diameter.Pump Model Housing Material Fits Hose Size Pore Size CAT. No.2511, 2515, 2522, Polypropylene 1/4" to 3/8" 0.8 micron 1475K-212534, 25462561, 2562, 2563, SBS Resin 3/8" to 7/16" 0.8 micron 1475K-222567, 2580, 2581, 25852561, 2562, 2563, 2567 Polypropylene 1/4" I.D. 0.2 micron 1475K-231475K-211475K-221475K-23Capture TMRecovery SystemProtect your pump and lab atmosphere with an integrated Capture recoverysystem. Connect this convenient condenser to your tap or chiller water to preventpump fume ingestion and release into the environment.DescriptionCAT. No.Complete condenser with flask / support / clamps 1420H-18Condenser with fittings 1420H-19Support / clamp kit 1420H-17Hose Adapter Kits• Kits ensure propersized tubingadaptors, andclamps forvacuum tightconnectionsFor Pump ModelPumpInlet O.D.ApplianceConnector O.D. CAT. No.8890 (GEM) 3/8" 7/16" and 1/2" 1420H-011400, 1405, 1399, 8905 7/16" 1/4" and 3/8" 1420H-011402, 1380, 8907, 8912, 8917, 8920, 8925 13/16" 1/4" and 3/8" 1420H-02• Kits include at least5 ft.(1.5m) of thickwalled rubbervacuum hose1430A1430B• Hands freeOn/Off pumpoperations• No adaptersor specialconnectionsneeded• Plugs directlyinto thepower sourceoutletOn/Off Foot SwitchOn/Off foot switches are compatible with selected dry vacuum pump models.Switches handle up to 15 amps. Cat. No. 1430A & 1430B come with a 3-prongU.S. Standard plug with 8 Ft. Cord, CSA, NEMA & UL Enclosure Type 1. CAT. No.1430C comes with a male and female IEC connections, 8 Ft. Cord, CE and plugsdirectly into the IEC connection on the pump.Pump ModelCAT. No.2014, 2034, 2044, 2037, 2047, 2032, 1430A (115V/60Hz only, maintained On/Off)2042, 2511, 2515, 2522, 2534, 1430B (115V/60Hz only, momentary On/Off)2546, 2561, 2567, 2581, 2585 1430C (90-230V with IEC connections, momentary On/Off)1430Cwww.welchvacuum.com 11
Page 4 and 5: Warranty InformationCHANGE YOUR PUM
Page 6 and 7: Measurement & ControlHandheld Gener
Page 8 and 9: Vacuum System Connectors & Accessor
Page 10: Vacuum System Connectors & Accessor
Page 15 and 16: Exhaust Filters & MufflersExhaust S
Page 17 and 18: Easily Initiate The Repair Process
Page 19 and 20: Easily Initiate The Repair Process
Page 21 and 22: DuoSeal ® Belt-Drive Vacuum PumpsM
Page 23: DuoSeal ® Belt-Drive Vacuum PumpsM
Page 27 and 28: DuoSeal ® Belt-Drive Vacuum PumpsM
Page 29 and 30: ChemStar ® Pumps for Corrosive Gas
Page 31 and 32: Direct-Drive Compact Vacuum PumpsGE
Page 33 and 34: Direct-Drive Compact Vacuum PumpsMo
Page 35 and 36: Direct-Drive Compact Vacuum PumpsMo
Page 38 and 39: Refrigeration Commercial Duty HVAC
Page 40 and 41: Chemical Duty PTFE Dry Vacuum Pumps
Page 48 and 49: MP/MPC High Flow Dry Vacuum PumpsMo
Page 50 and 51: Standard Duty Dry Vacuum PumpsWOB-L
Page 58 and 59: Peristaltic - Fluid Transfer PumpsM
Page 60: Sales and Service OfficesHOW TO ORD

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