Siemens 289-06040 VALVE ASSY HI TEMP 2W NC 2-1/2" 63CV LIN SS TRIM FLNG FLOAT EL-HYDRAUL ACT SRSiemens 289 06040 Valve assy Hi Temp 2W NC 2 1 2" 63Cv Lin SS Trim Flng float El Hydraul Act SR Flowrite 599 Series Valve Assembly features a floating control, spring return, 24 Vac electro mechanical actuator with 3 4 inch stroke. The 2 way, normally open, 2 1 2 inch, 63 Cv valve assembly with 3 4 inch stroke is ANSI Class 125 and has a linear characteristic, stainless steel trim, high temp packing, and flanged end connections. Additional Information