IHARA SCIENCE CORPORATION
IHARA CVB & CVF Series Bellows Valve
Product Made in Japan
Manufacturer: IHARA SCIENCE CORPORATION
Model: CVB & CVF Series
Standard Material
| Part name | Material |
|---|---|
| Body | 316L SS |
| Bellows | 316L SS |
| Disk | PTFE or PCTFE *1 *3 |
| Disk holder | 316L SS |
| Bellows flange | 316L SS |
| Bonnet | 304 SS |
| Bonnet gasket | PCTFE *3 |
| Pipe | 316L SS |
| Handle | Aluminum |
Test inspection
- Pressure proof test 1.5 MPa
Sealing and valve seat leak test 1.1 MPa
Leak test (vacuum method) External: 5.05 x 10^-10 Pa·m^3/sec or less Valve seat: 1.00 x 10^-6 Pa·m^3/sec or less *2*
(*1) PTFE is the standard for the disk material. PCTFE can be specified.
(*2) 5.05 x 10^-10 Pa·m^3/sec or less for PCTFE.
(*3) Can be made with the polyimide material.
Specification
| Size | Operating pressure (MPa) | Operating temperature (°C) | CV value | Approximate weight (kg)* |
|---|---|---|---|---|
| 10A | VAC to 1 | -10 to 80 (200) *3 | 1.7 | 1.3 |
| 15 A | 3.0 | 1.5 | ||
| 20 A | 5 | 1.7 | ||
| 25 A | 8 | 2.3 | ||
| 32 A | 22 | 6.1 | ||
| 40 A | 25 | 6.2 | ||
| 50 A | 29 | 9.8 |
Dimensions
Connection Diagram
Measurement Table
Pipe end
| Model | Size | D | t | L | L1 | H | h | W | S | F |
|---|---|---|---|---|---|---|---|---|---|---|
| CVB-10PW5 | 10 A | 17.3 | 1.2 | 200 | 55 | 104 | 24 | 63 | 4 | 30 |
| CVB-15PW5 | 15 A | 21.7 | 1.65 | 200 | 55 | 104 | 24 | 63 | 4 | 30 |
| CVB-20PW5 | 20 A | 27.2 | 1.65 | 200 | 50 | 113 | 28 | 63 | 5 | 35 |
| CVB-25PW5 | 25 A | 34.0 | 1.65 | 210 | 50 | 126 | 33 | 80 | 6 | 40 |
| CVB-32PW5 | 32 A | 42.7 | 1.65 | 265 | 57.5 | 203 | 50 | 100 | 13 | 56 |
| CVB-40PW5 | 40 A | 48.6 | 1.65 | 270 | 60 | 203 | 50 | 100 | 13 | 56 |
| CVF-50PW5 | 50 A | 60.5 | 1.65 | 277 | 52 | 244 | — | 160 | 16 | — |
Flange
| Model | Size | d | D | g | L | C | T | n-h | f | H | h | W | S | F |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CVB-10FJ | 10 A | 14.9 | 90 | 46 | 108 | 65 | 12 | 4-15 | 1 | 104 | 24 | 63 | 4 | 30 |
| CVB-15FJ | 15 A | 24.9 | 95 | 51 | 108 | 70 | 12 | 4-15 | 1 | 104 | 24 | 63 | 4 | 30 |
| CVB-20FJ | 20 A | 28 | 100 | 56 | 117 | 75 | 14 | 4-15 | 1 | 113 | 28 | 63 | 5 | 35 |
| CVB-25FJ | 25 A | 35 | 125 | 67 | 127 | 90 | 14 | 4-19 | 1 | 126 | 33 | 80 | 6 | 40 |
| CVB-32FJ | 32 A | 43 | 135 | 76 | 165 | 100 | 16 | 4-19 | 2 | 203 | 50 | 100 | 13 | 56 |
| CVB-40FJ | 40 A | 49 | 140 | 81 | 165 | 105 | 16 | 4-19 | 2 | 203 | 50 | 100 | 13 | 56 |
| CVF-50FJ | 50 A | 60.5 | 155 | 96 | 230 | 120 | 16 | 4-19 | 2 | 244 | — | 160 | 16 | — |
Union connection (Butt weld)
| Model | Size | D | t | (L) | L2 | L3 | (L4) | H | h | W | S | F |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CVB-10UN | 10 A | 17.3 | 1.2 | 174 | 90 | 35 | 30 | 104 | 24 | 63 | 4 | 30 |
| CVB-15UN | 15 A | 21.7 | 1.65 | 184 | 100 | 35 | 30 | 104 | 24 | 63 | 4 | 30 |
| CVB-20UN | 20 A | 27.2 | 1.65 | 222 | 110 | 39 | 44 | 113 | 28 | 63 | 5 | 35 |
| CVB-25UN | 25 A | 34.0 | 1.65 | 253 | 110 | 57 | 52 | 126 | 33 | 80 | 6 | 40 |
Union connection (Socket weld)
| Model | Size | D1 | (L) | L2 | L3 | L4 | H | h | W | S | F |
|---|---|---|---|---|---|---|---|---|---|---|---|
| CVB-10UW | 10 A | 21.5 | 178 | 90 | 30 | 30 | 104 | 24 | 63 | 4 | 30 |
| CVB-15UW | 15 A | 27 | 170 | 100 | 35 | 15 | 104 | 24 | 63 | 4 | 30 |
| CVB-20UW | 20 A | 32.5 | 180 | 110 | 35 | 15 | 113 | 28 | 63 | 5 | 35 |
| CVB-25UW | 25 A | 41 | 190 | 110 | 35 | 15 | 126 | 33 | 80 | 6 | 40 |
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