Troubleshooting and FAQs

Find answers to common questions    as well as troubleshooting help.

Click on question to see answer.


The Installation/Operation/Maintenance (IOM) manual can be found in our product catalogue. Simply go to the valve model and download the PDF from here.

The 206 series which is also known as a reduced port is similar to the 106 series (full port) except that the seats are one standard pipe size smaller than the flange sizes. For example, a 6 in / 150 mm 206-PG valve has a 4 in / 100 mm seat diameter while a 6 in / 150 mm 106-PG valve has a 6” seat diameter. (See illustration) 

No, our valves are manufactured for drinking water/potable water application and select pressure relief waster water/sewerage applications only.

No, our valves are manufactured for drinking water/potable water and waste water applications/systems only.

No, valves must be purchased as built as indicated on our website or as shown in the most current Singer catalogue.

We have sales representative offices in many different locations all over the world. You can locate your local sales representative through our “Find A Rep” tool.  If we do not have a sales representative in your region, Singer Valve will sell direct.

If you are encountering problems with your valve, please contact our customer support group at 604.594.5404. Singer Valve will work in conjunction with your local sales representative to solve your problem.

No, the anti-cavitation trim can only be added to 106 series (full port/globe) valves. These also cannot be retro-fitted to existing valves.

There’s a number of possible reasons that may cause a valve not to modulate. Complete the following steps and test after each step:

  1. Bleed all air
  2. Re-adjust pilot
  3. Adjust the opening/closing speed of the needle valves
  4. Change operating conditions to desire range or change pilot set-point
  5. Check that the pilot meets the spring ranges required. If not, replace with pilot of correct spring range