A new video from Semler Industries, a provider of
Diesel Exhaust Fluid (DEF) pump and storage solutions, shows how
DEF can become crystallized and why the fluid needs to be
protected.
Salim Rowe, Development Specialist at Semler Industries talks us
through the issues:
DD: Why do end-users need to worry about DEF
crystallization?
SR: Crystallization is a threat because it
indicates that there is an air leak in the system. Air leaks
compromise the quality of the DEF and may indicate other
contaminants.
DD: What steps are taken in pump design to avoid
crystallization?
SR: Some methods include flanged connections,
rather than threaded, which help avoid the leaks and contamination
issues. Other areas for crystallization to occur are at the
tote and connectors. There will always be "some" drip of
fluid on the connectors, but the risk can be minimized by using the
best connectors.
DD: What tips do you have for owners/operators
to avoid these issues?
SR: Some steps to take include:
1) Make sure that operators are trained on the sensitivity of DEF
to air as shown in the video
2) Use premium connections to assure air and contaminants are
avoided
3) Make sure to regularly check equipment for leaks and repair
immediately if problems arise
4) Use the proper equipment suppliers that test, inspect and seal
their equipment to assure the highest cleanliness possible.