¢Â General The valve which controls two positions or the proportion of cold/hot water, steam and air. The body and the seat are manufactured in bronze. The valve stem stainless steel, and valve plug. The stuffing box prevents leakage by using an O-ring and Vition.The feature curve of the valve is equal percentage or linear type. The elevation of stem by the actuator close the valve.
A. Hot water : Max 130¡É B. Chilled water : -25¡É Max. In closed circuit Only water with following additives. C. Hydrazine, Phosphate, for frost protection D. Glycol, max. 50%, for frost protection
¢Â Specification
Sv : Rangeability (VDI 2173) Kv : Cv / 1.167 Pvmax in Kgf/§² = max, prem, pressure difference across the valve at which the drive can still safely ......................................open and close the valve. Psmax in Kgf/§² = max, prem, pressure difference across the valve during malfunction at which the ......................................drive can close the valve.
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