Sponge rubber removal from manifold pipe of HRSG
Sponge rubber removal from manifold pipe of HRSG
(OP)
Dear,
It found case that during welding manifold use sponge rubber for supporting backing gas during weld process ( material P-91 ), the sponge rubber left in the nipple of manifold and no hand access to remove it.
Questions :
1. Can I apply heating (max. 1450 F) to help sponge rubber removing ?
2. If it still remainder left sticky at pipe wall, can it removing by chemical acid / cleaning ?
3. What kinds of chemical cleaning can I use ?
Regards / Bobby
It found case that during welding manifold use sponge rubber for supporting backing gas during weld process ( material P-91 ), the sponge rubber left in the nipple of manifold and no hand access to remove it.
Questions :
1. Can I apply heating (max. 1450 F) to help sponge rubber removing ?
2. If it still remainder left sticky at pipe wall, can it removing by chemical acid / cleaning ?
3. What kinds of chemical cleaning can I use ?
Regards / Bobby





RE: Sponge rubber removal from manifold pipe of HRSG