2-way control valve : GVF22
GVF 22 series of valve controls two positions or the proportion of cold/hot water,
steam and air district heating.
The body is made of cast-iron and the valve’s stem, seat, plug are of stainless steel.
The stuffing box prevents leakage by using O-ring and Vition.
The feature curve of the valve is linear type.
Appication
- Hot water : max 180℃
- 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 10bar. abs/max. 180℃
Technic Data
| Operating pressure | 20Kgf/cm² |
| Operating temp | at - 25 ~ 200℃, DIN 4747 / DIN3158 |
| Valve curve | Linear |
| Leakage rate | ≤0.01% of Kvs value Class Ⅳ |
| Connection | JIS 20K RF type |
Cr. : http://www.ginice.co.kr