BALANCED PRESSURE THERMOSTATIC STEAM TRAP DSC DSC S50 Ductile Iron DSC DSC S50F Ductile Iron DSC DSC S61 Cast Steel DSC DSC S61F Cast Steel DSC DSC S62 Cast Steel DSC DSC S62F Cast Steel DSC DSC S70 All S.S. DSC DSC S72 All S.S. DSC DSC S78 All S.S. DSC DSC S79 All S.S.