$4.40
This Buna O-ring measures exactly 79.5 mm inner diameter with 3 mm thickness. It replaces Part #2120085 This O-ring is specifically used on Edwards E2M28 and E2M30 pump models . The Buna-N (Nitrile) material offers great oil resistance at a fair price and is the standard choice for oil-sealed vacuum pumps.
O-ring, 79.5 X 3 mm - Buna, Part# 2120085
O-ring, 79.5 X 3 mm - Buna, Part# 2120085
This specific size (79.5 mm x 3 mm) is used on the Edwards E1/E2M pump family . This includes the following pump models:
E2M28
E2M30
These are two-stage rotary vane pumps used in laboratories and industrial applications. They are known for delivering high ultimate vacuum and reliable performance. If you own or service these pumps, this is a seal you should keep in your spare parts box.
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The COUPLING BOSS FOR E2M28 PK1 is a replacement part made for the Edwards E2M28 rotary vane vacuum pump. This small metal part is a key piece of the drive coupling assembly. It connects the motor shaft to the pump shaft. Without a good coupling boss, the motor cannot turn the pump. If your pump is not pulling vacuum or making strange noises, this part may be worn out. Replace it to get your pump running again.
Out of stock
10 in stock
10 in stock
10 in stock
Out of stock
10 in stock
10 in stock
Out of stock
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