Precision parts and spares for Welch Vacuum Pumps
Welch Vacuum turbo pump Chemstar N Series 1376N, 1400N, 1402N
Welch Vacuum turbo pump DuoSeal 1373, 1374
Welch Vacuum turbo pump DuoSeal 1375, 1376
Welch Vacuum turbo pump DuoSeal 1380, 1397
Welch Vacuum turbo pump DuoSeal 1398, 1399
Welch Vacuum turbo pump DuoSeal 1400, 1402
Welch Vacuum turbo pump DuoSeal 1405
Welch Vacuum turbo pump Directorr Series 8806, 8811, 8814, 8816, 8821, 8851
Welch Vacuum turbo pump 8905, 8905A, 8907A, 8910A, 8912A, 8917A
Welch Vacuum turbo pump 8915, 8915A, 8920, 8920A, 8925A
Welch Vacuum turbo full spares list
Welch Vacuum turbo full numeric spares list
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Precision Vacuum parts and spares: Welch plus many other manufacturers
Welch Vacuum pumps
Welch- Precision Parts Plus SparesWelch Chemstar N Series, precision parts plus spares

Welch Chemstar N Series, precision parts Minor Repair KitsMinor repair kits include gaskets, o'rings, mechanical shaft seals, valves and other components required to perform a light pump overhaul.
1376N 1376K-09 £133.00 1400N 1400K-09 £121.00 1402N 1402K-09 £134.00
Welch Chemstar N Series, precision parts Major Repair KitsMajor repair kits include all components of the minor kits plus v-belts, iron vanes and other components required to perform a major pump overhaul.
1376N 1376K-10 £329.00 1400N 1400K-10 £181.00 1402N 1402K-10 £271.00
Welch Chemstar N Series, precision parts SPARES AND ACCESSORIESWelch Chemstar N Series, precision parts Mechanical Shaft SealsModel Part No. List Each
1376N 411401D £30.46 1400D 411401E £30.46 1402N 411401D £30.46
Welch Chemstar N Series, precision parts ron VanesModel Type/Qty Req'd Part No. List Each
1376N Large Vane / 2 411684 £56.84 Small Vane / 2 411487 £14.65 1400N 4 Req'd 411059IRON £15.82 1402N Large Vane / 2 410959 £41.51
Welch Chemstar N Series, precision parts plus spares4401200 BALL,STEEL 410660 FILTER 410890 FILTER,AIR 411692 FILTER,AIR 410383 GASKET,INTAKE COVER 618278A GASKET,INTAKE COVER, 618278A Gasket,Intake cover,Viton 618279B GASKET,OIL CASE,VITO 618279B Gasket,Oil case,Viton 618355B Gasket,Oil case,Viton 410643 GASKET,SHAFT SEAL 410696 HOLDER,SPRING 411063 HOLDER,SPRING 410613 KEY,WOODRUFF,CUT 410624 KEY,WOODRUFF,CUT 660304 O'RING,AFLAS,36.17 X 660304 O'ring,Aflas,36.17 x 2.62 mm 40015 O'RING,BUNA,7.65 X 1 40015 O'RING,BUNA,7.65 X 1.78 MM 620118 O'RING,TETRASEAL,#01 620118 O'RING,TETRASEAL,#013 79135 O'RING,VITON,10.5 X 79135 O'RING,VITON,10.5 X 2 MM 612159A O'RING,VITON,18.72 X 612159A O'RING,VITON,18.72 X 2.62 MM 619284A O'RING,VITON,24.99 X 619284A O'RING,VITON,24.99 X 3.53 MM 320106 O'RING,VITON,25.07 X 2.62 MM 619378 O'RING,VITON,82.22 X 2.62 MM 320083 O'RING,VITON,86 X 2.5 MM 618559A PIN,SPRING,VANE 4060754 RING 411150 RING,RETAINING 410578 SEAL,SHAFT (METAL CASE) 1401D SEAL,SHAFT,MECH,W/SC 1401E SEAL,SHAFT,MECH,W/SCREWS,.625" 1401D SEAL,SHAFT,MECH,W/SCREWS,.750" 618315A SPACER,BLOCK,VALVE 411685 SPRING,HOLDER,CORROSION RESIS 412158 SPRING,VALVE 618348A Stud,Baffle 410708 V-BELT 410710 V-BELT 618314A VALVE 411239 VALVE,EXHAUST 412154 VALVE,LOWER EXHAUST, 412154 VALVE,LOWER EXHAUST,STEEL 410992 VALVE,PRESSURE RELIEF 412153 VALVE,UPPER EXHAUST, 412153 VALVE,UPPER EXHAUST,STEEL 411684 VANE,CAST IRON,1ST S 411059IRON VANE,CAST IRON,1ST STAGE 410959 VANE,CAST IRON,1ST STAGE,LARGE 411487 VANE,CAST IRON,2ND S 411487 VANE,CAST IRON,2ND STAGE,SMALL 2710040 Washer,Brass,#10 618456A Washer,Copper,5/16" 411766 WASHER,DISK 410508 WASHER,THRUST
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