In Brass and Aluminum and Stainless

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.

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

In Stainless and Aluminum.

Granville-Phillips 340 Vacuum Gauge Controller (VGC) measures pressure from less than 1 x 10-9 Torr to atmosphere, utilizing an ionization gauge and two Convectron gauges.

The Granville Philips Convectron Gauge tube used on the 5971 and 5972 mass spectrometers is available from S.I.S. This is a direct replacement for the HP original and screws into the fitting shown above.

QF to QF Reducers, Aluminum fittings

Each 4-way cross has four NW flanges for up to 4 vacuum lines.

Stainless union for connection NW flanges to Varian type conflat flanges.