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 | DISCONTINUED | --- | --- |
| DK2 | For M-4 Pumps, pkg of 10, (B258) butyl inlet flange and 10(V111) Viton(R) Fill and drain O-Rings | DISCONTINUED | --- | --- |
| 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 | DISCONTINUED | --- | --- |
| DK4 | For M-6 Pumps, pkg of 10, (B267) butyl inlet flange and 10 (V111) Viton(R) Fill and drain O-Rings | DISCONTINUED | --- | --- |
| Unit of measure for ordering is PK. | ||||
| * Call for availability. | ||||
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Kalrez® and Viton® are registered trademarks of
E. I. DuPont de Nemours
Nylon Gloves Nylon, lint free, durable, and ambidextrous.
Centering Ring Assembly, 304 Stainless and Aluminum 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.
Rollerflex Vacuum Hose PVC cord reinforced vacuum hose.
Light weight, low cost, and superior corrosion resistance.
Ideal for mass spec, food, and other applications.
PTFE O-Rings PTFE is a popular o-ring which is white in color. The PTFE o-rings are popular for use in applications which require a chemically resistant and non-compressible material.
Adaptive Tee To Female NPT in Aluminum and Stainless Steel In Aluminum and Stainless Steel.
Pump Nipples With Side Port Aluminum Long Nipples with 1/8" NPT tap in the side for the addition of gauge tubes.
Hose Adaptor, Stainless Steel Stainless steel nipples for clamping vacuum hose to NW flanges.
Hose Adaptor, Aluminum For connecting rubber or plastic hose to NW flanges.
Buna-N O-Rings O-Rings are available in five different materials from Scientific Instrument Services.





