Pre Fill Valves SVF/SCF
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Features
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- Small size , and easy to install.
- Low pressure loss with high flow capacity.
- Compact and robust.
- Steel body with steel components, available with 8 models for selection options.
- Ductile iron body with steel Components, available with 6 models for selection options.
- Good for directly intergrated onto the cylinder cap side.
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Pre-fill valve
Ordering Code
| SVF | 100 | 21C |
|---|---|---|
| Series No. | Size | Design Number |
| SVF – Steel body | SVF – 32~200 | SVF – 21C |
| SCF – Ductile iron body | SCF – 32~125 | SCF – 22C |
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Pipe Flange
Ordering Code
| FGP | 100 | 2 | M22 | 5B |
|---|---|---|---|---|
| Series No. | Size | Pressure range | Normal bolt diameter | Normal pipe diameter |
| FGP – High – pres. side flange | 2: 250 bar (3,600 PSI) | |||
| FGT -Low – pres. side flange | 4: 400 bar (5,800 PSI) |
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Dimensions
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| Model | ΦA | ΦB | ΦC | ΦD | ΦE | ΦF | ΦG | L | PX | Fixed Bolt | O-ring |
| SVF-32 , SCF-32 | 48
(1.89) |
63
(2.48) |
– | 82
(3.23) |
32
(1.26) |
28
(1.10) |
55
(2.17) |
62
(2.44) |
PT1/4″ | – | 1517-6 |
| SVF-50 , SCF-50 | 72
(2.83) |
90
(3.54) |
112
(4.41) |
128
(5.04) |
45
(1.77) |
29
(1.14) |
72
(2.83) |
M 4X30 | G 85 | ||
| SVF-63 , SCF-63 | 87
(3.43) |
105
(4.13) |
125
(4.92) |
143
(5.63) |
50
(1.97) |
33.5
(1.32) |
84
(3.31) |
M 5X35 | G 95 | ||
| SVF-80 , SCF-80 | 108
(4.25) |
130.5
(5.14) |
150
(5.91) |
169
(6.65) |
57
(2.24) |
38.5
(1.52) |
100
(3.94) |
M 5X40 | G 120 | ||
| SVF-100 , SCF-100 | 130
(5.12) |
155
(6.10) |
185
(7.28) |
212
(8.35) |
70
(2.76) |
44
(1.73) |
122
(4.80) |
M 6X45 | G 145 | ||
| SVF-125 , SCF-125 | 170
(6.69) |
200
(7.87) |
226
(8.90) |
248
(9.76) |
89
(3.50) |
51
(2.01) |
155
(6.10) |
M 6X60 | G 185 | ||
| SVF-160 , SCF-160 | 218
(8.58) |
250
(9.84) |
284
(11.18) |
310
(12.20) |
120
(4.72) |
70
(2.76) |
233
(9.17) |
70
(2.76) |
PT3/8″ | M 8X70 | G235 |
| SVF-200 , SCF-200 | 272 | 310 | 355 | 390 | 145 | 95 | 268 | 85 | PT1/2″ | M 10X95 | G295 |
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Reference
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Example for model selection:
Given
1 .Main cylinder dia.:350mm.
2.Ascending cylinder:2-B063XR035(mm).
3.Weight of platen: 1500kg.
4.Pump capacity:25 lpm(6 USgpm).
Analysis
Area of main cylinder:961.625cm2. Two ascending cylinder area:43.081cm2 Ascent speed:580cm/min(96.6mm/sec). Flow thru pre-fill valve to tank :558 lpm(135 USgpm).
Selectable model: SVF-63-21C or SCF-63-22C
The induced pressure in ascending cylinder is 36 bar(520 PSI). For a free descending operation,the flow capacity. 630 lpm(152 USgpm) for SVF(SCF)-63,will allow a descending speed at 650cm/min(108mm/sec).
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Flanges
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