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I just stumbled over something new to me, "rubber" valve balls. It sounds great, giving 100% seal, wich very often isn't the case with steel balls. I suppose the problem really lies with valve ballseats not beeing perfect ;-) Also, these balls are lighter, and supposedly operate much quicker. Does this improve efficiency?
I've ordered the rubber balls from www.knupfershop.de , and I willbe trying them out next week. Only problem is, my Aster uses 3mm and 4mm balls, but Knupfer only offers 3,1 and 4,7mm balls. The "rubber" material is called "Viton", I think it's a trademark, and handles heat, steam, oil etc
Has anyone else already tried this? Where did you get them?
I've ordered the rubber balls from www.knupfershop.de , and I willbe trying them out next week. Only problem is, my Aster uses 3mm and 4mm balls, but Knupfer only offers 3,1 and 4,7mm balls. The "rubber" material is called "Viton", I think it's a trademark, and handles heat, steam, oil etc
Has anyone else already tried this? Where did you get them?