MAINTENANCE NOTES
Equilibar recommends the following for improved product longevity and performance:
- Maintain a strainer or filter upstream of the back pressure regulator.
- Conduct an annual inspection of the diaphragm integrity, especially for applications where there is strong or regular pulsing (i.e. reciprocating pump, etc.). Increased inspection frequency may be necessary for extreme condition applications.
- After inspection, it is recommended to clean the regulator prior to reassembly. (Follow assembly instructions in the Installation & Maintenance Guide shipped with the product, or download the Installation & Maintenance Guide from our website).
REPLACEMENT PARTS
It is recommended to order spare parts prior to performing maintenance. The following replacement part kits are available for order:
- RBK – Rebuild Kits – replacement parts for O-rings AND diaphragms
- DI – Diaphragm Kit – replacement parts for diaphragms only
- OR – O-ring Kit – replacement parts for the O-rings only
Contact Us to place an order
Special product circumstances
- The Ultra Low Flow UxL Series and The Zero Flow ZF back pressure regulators have extra internal parts that may need to be replaced on an infrequent basis.
Contact an application engineer to discuss what type of replacement parts you require.
INSTALLATION & REBUILD INSTRUCTIONAL VIDEOS
The videos below demonstrate how simple it is to rebuild an Equilibar back pressure regulator.
How to Rebuild an Equilibar Research or GS Series regulator
The regulator in this video is a research series back pressure regulator, but the process is similar for our GS series back pressure regulators.
Tips for installing an O-Ring in an Equilibar GSD6 back pressure regulator
In certain cases, it may be tricky to insert the O-Ring into the GSD6 back pressure regulator. For tips from our engineers, watch the video below.
How to remove the “removable seat” in Equilibar UxL or ZF
The UxL and ZF back pressure regulators have a different design with a “removable seat.” The rebuild instructions include an additional step for that seat. The video below demonstrates how to replace a “removable seat” in a UxL or ZF back pressure regulator.
How to rebuild an Equilibar ZF back pressure regulator
The ZF back pressure regulator has additional parts for zero flow performance. The video below demonstrates how to rebuild a ZF back pressure regulator. Watch the “removable seat” video with this one to learn how to use the “removable seat” tool. Contact us if you need a tool.
Tips for installing an O-ring in an Equilibar LF
If the O-ring in your repair kit appears to be too small, we recommend gently stretching out the O-ring as shown in this video with an Equilibar LF back pressure regulator.
How to Assemble an Equilibar BD Back Pressure Valve
The Equilibar BD Series valves are much larger than the research and general series (GS) regulators. This video gives tips for assembling these large BD back pressure valves.
How to Insert an O-Ring in an Equilibar BD Valve
