2-way control valve (GVF22 시리즈 (15A~150A)) |
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.
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- 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℃
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· 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
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2-way control valve (GVF22 시리즈 (200A~350A))