GXS21 3路控制閥3-WAY CONTROL VALVE(Bronze)(GXS21 series (GXS21.15 - 50))
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, STS. The stuffing box prevents leakage by using an O-ring. The feature curve of the valve is equal percentage or linear type. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Hot water : max. 130℃ Chilled water : -25℃ max. in closed circuit only Water with following additives ; Hydrazing, Phosphate, for frost protection Glycol, max. 50%, for frost protection Saturatecd steam, superheated steam abs. press. 1.5bar 120℃. ※ Close-off pressure
* ΔPvmax in kgf/cm² = Max, permissible pressure difference across the valve at which the drive can still safely open and close the valve * ΔPsmax in kgf/cm² = Max,permissible pressure difference across the valve during maifunction at which the drive can close the valve. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Operating pressure : 16Kg/cm² (16bar) Operating temp : - 25 ~ 180℃ Valve curve 1) Straight port : Equal percentage or Linear 2) Bypass : Linear Leakage rate 1) Straight port : ≤0.01% of Kvs value Class Ⅳ(ANSI B 16.104) 2) Bypass : ≤0.5% of Kvs value Connection : PT screwed | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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