2-WAY CONTROL VALVE(GVF21 series (GVF21.15 - 150)) |
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“ GVF 21 “ 2-way Control Valve 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 steel. The stuffing box prevents leakage by using O-ring and Viton. The feature curve of the valve is equal percentage or linear type. |
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Operating pressure : 10Kgf/cm² Operating temp : - 25 ~ 120℃ Valve curve : Linear Leakage rate : ≤0.01% of Kvs value Class Ⅳ Connection : JIS 10K RF type |
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Hot water : max. 120℃ 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.
Upon customers request, Body materials of SCPH2, SCS13 are available. ※ Close-off pressure
Model |
DN |
FLOW |
Stroke |
Sv |
ΔPv |
Actuator ΔPmax(Kgf/cm²) |
mm |
Inch |
Kvs |
Cv |
mm |
GEA-20A(P) |
GEA-35A(P) |
GEA-55A(P) |
GVF21·15 |
15 |
1/2” |
3 |
3.5 |
20 |
50 |
10 |
10 |
- |
- |
GVF21·20 |
20 |
3/4” |
5 |
5.8 |
20 |
50 |
10 |
10 |
- |
- |
GVF21·25 |
25 |
1” |
10 |
11.7 |
20 |
50 |
10 |
10 |
- |
- |
GVF21·32 |
32 |
1 1/4” |
16 |
18.7 |
20 |
50 |
10 |
10 |
- |
- |
GVF21·40 |
40 |
1 1/2” |
25 |
29 |
20 |
50 |
10 |
10 |
- |
- |
GVF21·50 |
50 |
2” |
39 |
45 |
20 |
50 |
10 |
8 |
- |
- |
GVF21·65 |
65 |
2 1/2” |
65 |
75.8 |
20 |
50 |
10 |
5 |
- |
- |
GVF21·80 |
80 |
3” |
91 |
106 |
20 |
50 |
8 |
3 |
- |
- |
GVF21·100 |
100 |
4” |
130 |
152 |
40 |
50 |
4 |
- |
3.5 |
- |
GVF21·125 |
120 |
5” |
188 |
219 |
40 |
50 |
4 |
- |
2 |
4.0 |
GVF21·150 |
150 |
6” |
283 |
330 |
40 |
50 |
4 |
- |
1.5 |
3.5 |
Sv : Rangeability (VDI 2173) * Kv=Cv/1.167 ΔPvmax in kgf/cm² = difference pressure across fully open valve on installation with full load ΔPsmax in kgf/cm² = max,permissible difference pressure across closed valve ※Please indicate Valve model at ordering in case of assembling with GEA-35A(P) of 20mm Stroke.
Sv : Rangeability (VDI 2173) * Kv=Cv/1.167 ΔPvmax in kgf/cm² = difference pressure across fully open valve on installation with full load ΔPsmax in kgf/cm² = max,permissible difference pressure across closed valve ※Please indicate Valve model at ordering in case of assembling with GEA-35A(P) of 20mm Stroke. |
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2-WAY CONTROL VALVE(GVF22 series (GVF22.15 - 150)) |
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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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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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· 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℃
★ Upon customers request, Body materials of SCPH2, SCS13 are available ※ Close-off pressure
Model |
DN |
FLOW |
Stroke |
Sv |
ΔPv |
Actuator ΔPmax(Kgf/cm²) |
mm |
Inch |
Kvs |
Cv |
mm |
GEA-20A(P) |
GEA-35A(P) |
GEA-55A(P) |
GVF22·15 |
15 |
1/2” |
3 |
3.5 |
20 |
50 |
20 |
20 |
- |
- |
GVF22·20 |
20 |
3/4” |
5 |
5.8 |
20 |
50 |
20 |
20 |
- |
- |
GVF22·25 |
25 |
1” |
10 |
11.7 |
20 |
50 |
20 |
20 |
- |
- |
GVF22·32 |
32 |
1 1/4” |
16 |
18.7 |
20 |
50 |
20 |
20 |
- |
- |
GVF22·40 |
40 |
1 1/2” |
25 |
29 |
20 |
50 |
16 |
9 |
- |
- |
GVF22·50 |
50 |
2” |
39 |
45 |
20 |
50 |
6 |
6 |
- |
- |
GVF22·65 |
65 |
2 1/2” |
65 |
75.8 |
40 |
50 |
5 |
- |
6 |
- |
GVF22·80 |
80 |
3” |
91 |
106 |
40 |
50 |
4 |
- |
5.5 |
- |
GVF22·100 |
100 |
4” |
130 |
152 |
40 |
50 |
2.5 |
- |
3.5 |
4.5- |
GVF22·125 |
120 |
5” |
188 |
219 |
40 |
50 |
1.75 |
- |
- |
3.5 |
GVF22·150 |
150 |
6” |
283 |
330 |
40 |
50 |
1 |
- |
- |
3.0 | |
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