Municipal Wastewater Pumps- Seal Mat'l Recommendations
Municipal Wastewater Pumps- Seal Mat'l Recommendations
(OP)
I'm looking for expert opinions on recommended seal face materials for sewage pumps (pros/cons).
Tungsten-carbide vs. Tungsten-carbide or silicon-carbide vs. silicon carbide
Tungsten-carbide vs. Tungsten-carbide or silicon-carbide vs. silicon carbide





RE: Municipal Wastewater Pumps- Seal Mat'l Recommendations
You don't have to use the same seal face material for both the primary and mating rings. Seals usually perform better when one face is harder than the other, something has to wear. I am biased against using Tungsten against Tungsten, as I believe it tends to generate too much heat. However, I don't feel the same about Silicon Carbide against itself.
RE: Municipal Wastewater Pumps- Seal Mat'l Recommendations
I agree with longeron for the use of SIC Vs SIC.For Stationary face you can use Alfa Sintered SIC and for roatary face use Purbid Gr.SIC of Pure Carbon.This face
combination will give you best results.
ACP
RE: Municipal Wastewater Pumps- Seal Mat'l Recommendations
Are you using single or double seal for this application.
If you are using single seal go for SIC/SIC seal faces and if possible with clear water flush.
If you are using double seal , inboard seal ( process side ) should be with SIC/SIC seal faces and outboard seal can be carbon/sic seal faces.
Send me any other query you may have on mech seal.
Rakesh.
rakesh@burgmannme.com
RE: Municipal Wastewater Pumps- Seal Mat'l Recommendations
RE: Municipal Wastewater Pumps- Seal Mat'l Recommendations
sic vs tc with plan 32(external pressurised clear liquid flushing )shall give you a much better MTBF.
kaushal
RE: Municipal Wastewater Pumps- Seal Mat'l Recommendations
RE: Municipal Wastewater Pumps- Seal Mat'l Recommendations