Welch Cold Trap Detail

Discover more details about the cold trap.

Explosion Proof Motor

Do you know the difference between a standard vacuum pump and a vacuum pump with an explosion-proof motor?

1417 Directional Exhaust Filter

Learn the operating principles and benefits of the Welch model 1417 directional exhaust filters utilized in an oil seal vacuum pump.

Vacuum Oven With Cold Trap

Do you know how to set up a vacuum oven using a cold trap and a CRV Pro oil seal rotary vane vacuum pump?

Forced Oil Flush for Rotary Vane Vacuum Pump

What is the purpose of forced oil flushing?

Welch Vacuum Application I Vaccum/Pressure Control with Welch Single-Head Wob-L Pumps

Are you familiar with our Single-Head Wob-L Pumps?

Welch Vacuum Application I Gas Ballast, Oil-Seal Rotary-Vane Vacuum Pumps

Did you know that a gas ballast reduces oil contamination? 

Filter Element Replacement for 1417E/F Directional Exhaust Filter

How to replace the filter element in a Welch 1417 Directional Exhaust Filter? 

How to Change Oil for Rotary Vane Vacuum Pumps?

Do you know how to change the oil in your rotary vane vacuum pump? Watch the video to see and follow the principles. Remember, its Safety First!

Welch Supplies Critical Pharmaceutical and Lab Vacuum Pumps