Description
S.I.S. supplies 'O' Rings for replacement in various models of Varian diffusion pumps. Additional sizes and types of 'O' Rings are listed in the 'O' Ring section of this catalog.
Diff. Pump O-Ring Kit | ||||
Part No. | Description | Quantity In Stock |
Price /PK |
Order |
---|---|---|---|---|
DK1 | For M-2 and HS-2 Pumps, pkg of 10 (B238) butyl inlet flange O Rings | 0*Standard lead-time for non-stock items is approximately two weeks depending on the item. | $5.10 | |
DK2 | For M-4 Pumps, pkg of 10, (B258) butyl inlet flange and 10(V111) Viton(R) Fill and drain O-Rings | 0†Lead time for this non-stock item is approximately 7 days. | $20.70 | |
DK3 | For VHS-4 Pumps, pkg of 10, (B258) butyl inlet flange, 10 (B238) butyl foreline flange and 10(V111) Viton(R) Fill and drain O-Rings | 0*Standard lead-time for non-stock items is approximately two weeks depending on the item. | $25.30 | |
DK4 | For M-6 Pumps, pkg of 10, (B267) butyl inlet flange and 10 (V111) Viton(R) Fill and drain O-Rings | 0*Standard lead-time for non-stock items is approximately two weeks depending on the item. | $28.50 | |
Unit of measure for ordering is PK. | ||||
* Standard lead-time for non-stock items is approximately two weeks depending on the item. † Lead time for this non-stock item is approximately 7 days. | ||||
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Viton® is a registered trademark of DuPont Dow Elastomers.

Nylon, lint free, durable, and ambidextrous.

For connecting rubber or plastic hose to NW flanges.

Available with Viton® or Buna O-ring, this centering ring complete with O-ring should be used when joining any two NW flanges with a quick flange clamp.

PVC cord reinforced vacuum hose.
Light weight, low cost, and superior corrosion resistance.
Ideal for mass spec, food, and other applications.

O-Rings are available in five different materials from Scientific Instrument Services.

This convenient o-ring kit contains 30 of the most popular sizes, for a total of 380 o-rings, in one convenient kit.

Hermetic, Sealed, In-line Oil Mist Separator For Mechanical Vacuum Pumps.

Quick action aluminum clamp with finger closure "T" knob for positive sealing of NW flanges.

In Aluminum and Stainless Steel.