2-WAY CONTROL VALVE : GVF21
GVF 21 “is intended to control two positions or the proportion
of cold/hot water, steam and air.
The body is made of cast-iron and the valve stem, seat, and valve plug
are of stainless.
The stuffing box prevents leakage by using O-ring and Viton.
The feature curve of the valve is equal percentage or linear type.
Hot water : max. 120℃Appication
Chilled water : -25℃ max. in closed circuit only Water with following additives ;
- Hydrazine, Phosphate, for frost protection
- Glycol, max. 50%, for frost protection
- Saturated steam, superheated steam.
Technical Data
| Operating pressure | 10Kgf/cm² |
| Operating temp | - 25 ~ 120℃ |
| Valve curve | Equal percentage or Linear |
| Leakage rate | ≤0.01% of Kvs value Class Ⅳ |
| Connection | JIS 10K RF type |
Cr. : http://www.ginice.co.kr