Frequently Asked Questions
Learn more on what Sterlitech Corporation has to offer. Find answers to your questions about our filtration products here!
Rocker Pumps FAQ
Do you have any Rocker Repair Videos to help maintain my items?
Yes, we do! Check out our Rocker Repair Channel here
I would like to change the inlet fitting on my Rocker 300 or 400 series vacuum pump. What are the inlet port threads?
For the Rocker 300, and 400 series vacuum pumps, the inlet port has 1/8in BSPT (British Standard Pipe, Tapered) threads
My Rocker 300 series, or Rocker 400 series, vacuum pump is operating but there is no vacuum at the inlet hose barb. What is the problem?
Why can I no longer find the Rocker 800 and its accessories?
The Rocker 800 series vacuum pumps and accessories have been discontinued and have been replaced by the Rocker 900 series, which offers updated performance and features. For guidance on selecting the best replacement model, please contact Sterlitech Sales for assistance. You can also reference the https://www.sterlitech.com/media/amasty/amfile/attach/Vacuum%20Pump%20Selection%20Guide.pdf for detailed comparisons and recommendations.
Can I operate my Rocker vacuum pump in an orientation that is not level?
No. Rocker vacuum pumps must be operated on a level, flat surface. Running Rocker 300 or 400 series pumps when they are tilted or not level can cause the prote® protection device inside the inlet filter to close, which may restrict airflow and reduce pump performance.
Can I move my Rocker vacuum pump while it is operating?
No. Rocker vacuum pumps should not be moved while operating. Before moving the pump, turn it off and open the inlet to atmosphere to release vacuum. Moving a running Rocker 300 or 400 series pump can cause the prote® protection device inside the inlet filter to close, which may restrict airflow and affect pump performance.