BALANCED PRESSURE THERMOSTATIC STEAM TRAP DSC DSC No.S50 Ductile Iron MOP 17K x 230℃ DSC DSC No.S50F Ductile Iron MOP 17K x 230℃ DSC DSC No.S61 Cast Steel MOP 22K x 320℃ DSC DSC No.S61F Cast Steel MOP 22K x 320℃ DSC DSC No.S70 All S.S. MOP 32K x 320℃ DSC DSC No.S72 All S.S. MOP 32K x 320℃ DSC DSC No.S79 All S.S. MOP 32K x 320℃ DSC DSC No.S80 Forge Steel MOP 32K x 320℃ DSC DSC No.S80F Forge Steel MOP 32K x 320℃ DSC DSC No.S80Y Forge Steel MOP 32K x 320℃ DSC DSC No.S80YF Forge Steel MOP 32K x 320℃