The Bundesamt für Materialprüfung (BAM), the German Federal Institute for Materials Testing, is the body that certifies materials for use in oxygen service.
BAM tests include various procedures to evaluate material behavior in contact with pure oxygen, assessing their reactions under different temperature and pressure conditions.
The certifications issued by BAM are valid exclusively for the specific usage conditions indicated, including maximum oxygen temperature and pressure.
The BAM-approved product range for oxygen service includes packings, stem seals, seat seals, and flange gaskets, enabling valves and flanges to achieve leak-tightness in full compliance with current regulations.
BAM testing has been conducted on GR80SGR OXY graphite packing and PTFE PT5504OX packing, on ZV48Z OXY and ZV48ZN OXY expanded graphite molded rings (the former made of pure expanded graphite, the latter reinforced with nickel), and on PLANIFLON PT2105 PTFE stem/seat gaskets. These four gaskets, together with Sigraflex Hochdruck flat gaskets and OXY spiral wound gaskets, fully meet the sealing requirements for industrial On/Off and quarter-turn valves, butterfly valves, and ball valves, ensuring tightness on the stem, bonnet, seat, and flanges in oxygen services.
The BAM-approved product range includes:
-
GR80SGR OXY packing
for initial installation and valve stem maintenance -
V48Z OXY and V48ZN OXY molded rings
for ball valve body sealing -
Stem gasket kits without braided wiper rings
-
Controller 2 Evo Oxygen BAM
stem gasket with GR80SGR OXY packing wiper rings and ZV48Z OXY intermediate rings -
Controller 3 Evo Oxygen BAM
stem gasket made entirely of GR80SGR OXY packing wiper rings -
Controller Back OXY
seat gasket styles 1 and 2 -
Sigraflex Hochdruck
die-cut graphite gaskets for bonnet and flanges -
Planisteel SW G OXY and SW P OXY spiral wound gaskets
for RF, FF, LTG, and LMF flanges with Sigraflex Z filler -
PT5500 OX packing
for initial installation and valve stem maintenance -
Planiflon PT2105
PTFE gasket for stem and seat sealing
