Description
The Sensus-Gas Division 143-16-021-03 Red Spring is a calibrated regulator spring used to control pressure adjustment inside compatible gas regulator assemblies. It operates by applying regulated mechanical tension to the internal diaphragm and valve mechanism, allowing controlled response to inlet and outlet pressure changes during gas flow operation. Installed in 243-12 and 121 series regulator assemblies, it supports accurate pressure regulation and flow balance in fuel delivery applications associated with HVAC systems. Positioned within the regulator housing, the red spring works with internal adjustment components to maintain the specified operating pressure during equipment operation.
