LIQUID CO2 SEAL LEAKAGE.
LIQUID CO2 SEAL LEAKAGE.
(OP)
thread819-353147: CO2 Seal Leakage.
JJ PEELIN SIR & FORUM MEMBERS,
With ref. to thread819-353147: CO2 Seal Leakage. in which seal drawing is attached this single non cartridge seal is found leaking again after
running for 8 months.
I am attaching failed seal carbon & Silicon carbide photos for your reference. Pls. suggest me how can I solve this seal problem as this seal failure is repeated.
JJ PEELIN SIR & FORUM MEMBERS,
With ref. to thread819-353147: CO2 Seal Leakage. in which seal drawing is attached this single non cartridge seal is found leaking again after
running for 8 months.
I am attaching failed seal carbon & Silicon carbide photos for your reference. Pls. suggest me how can I solve this seal problem as this seal failure is repeated.





RE: LIQUID CO2 SEAL LEAKAGE.
Carbon has scoring marks on face & pls. note that spot on Silicon carbide face is light relection.
RE: LIQUID CO2 SEAL LEAKAGE.
Johnny Pellin
RE: LIQUID CO2 SEAL LEAKAGE.
First: whatever JJ has already said - do that
Plus: I looked at your carbon pic and it looks to me like the beginning of blistering in a couple of spots. Have a very close look under magnification - I think you'll see this. It's a fairly common problem with ammonia compressor seals and I've seen it in CO2 pumps. Is this seal face antimony filled carbon? If not, talk to your seal vendor about switching to that material. Consider going a step further and have this face also made from silicon carbide. Running a short while leak free and then having a leak develop is also symptomatic of carbon blistering. The CO2 gets absorbed and then an upset in the system, more likely temperature than pressure related, will cause it a sudden expansion and thus the blister. Try silicon on silicon, I think you'll get your fix.