You are looking at a brand new SS Exhaust Muffler for VIOT and Other brand vacuum Pumps of Selected Models to remove the oil droplets from the exhaust air. fit 25 mm and 1 inch NPT on the pump.
Rotary Vane Vacuum pump Exhaust Muffler Silencer Oil mist eliminator Fit all VIOT vacuum pumps VPD(s)x





Vacuum Pump Exhaust Muffler: for VIOT and Other Selected Models of Vacuum Pumps;

Why this is needed: Rotary vane vacuum pump has an negative byproduct: Oil mist. Because the vacuum pump oil is a volatile liquid, when it lubricate the moving parts, while removing air from a closed (or semi-closed) system, the lubricant(oil) is mixed in air stream  and get exhausted out to the environment. If the pump is used outdoor, you may not feel the oil, but if you are using the vacuum pump in a closed space, the room may get "smoky" after operating the pump. This muffler is designed and used to ease this problem.

How it is connected: this muffler come with a 3/4 inch male pipe thread. It can be used directly on VIOT rotary vane vacuum pumps:VPD12a, VPDS10, VPD8, VPD5, VPDS5. VPD3, VPDS3. This will fit on pumps with 25 mm metric exhaust port. Consult with your pump manufacture or adapter is needed.

Features:

  • Built with steel case of a large profile for more air flow
  • Lined with oil repulsive filter layer so the oil mist will not pass through.
  • Lined with fiberglass layer to absorb the sound wave to reduce the noise.
  • The fiberglass layer layer effectively remove oil drops from the exhaust stream to reduce the oil mist output.
  • Dimensions:8.0 H X 3.5 X 3.5 inch.
    Connection to Pump: 3/4 inch Pipe or 27 mm metric thread
    Oil drain: oil drops will flow back to pump.
NOTE: 
This unit works well with hydrophobic oil, while some of the vacuum pump oils are hydrophilic in nature, this unit may not filter all the oil mist vapor in the exhaust.