r"
^(?P<operating_fluid>M)(?P<sep_1>-)(?P<unit_type>SR)(?P<unit_size>6|8|10|15|20|25|30)(?P<mounting_type>K)(?P<unit_design>E|D)(?P<cracking_pressure>00|01|02|05|15|30|50|60|120)(?P<sep_2>-)(?P<unit_series>1X)(?P<sep_3>/)(?P<seal_material>V|)(?P<additional_details>(.|[0-9])*)$
"
gm