Diaphragm Operated Valves〈The high-pressure gas certifications〉
Using the diaphragm in the drive part, the flow quantity of fluid can be controlled by letting the air pressure change and adjusting the open degree of the valves.
S-K704S (Single seat)
（Production range）
| Nominal diameter | 15A to 150A |
|---|---|
| Body material | FCD, SC, SCS, CAC |
| Pressure | MAX. 30 MPa |
| Temperature of fluid | －196 to 600℃ |
| Inner valve shape | P-port, Q-port |
| Characteristic | Linear, equal%, ON-OFF |
| Range ability | 30:1 |
| Allowable leakage | JIS B 2005-4 class 4,5 |
| Operating air temperature | 0 to 70℃ |
| Temperature of surroundings | 0 to 70℃ |
S-K704W (Double seat)
（Production range）
| Nominal diameter | 32A to 300A |
|---|---|
| Body material | FCD, SC, SCS, CAC |
| Pressure | MAX. 3.5 MPa |
| Temperature of fluid | －196 to 600℃ |
| Inner valve shape | P-port, Q-port |
| Characteristic | Linear, equal%, ON-OFF |
| Range ability | 30:1 |
| Allowable leakage | JIS B 2005-4 class 2 |
| Operating air temperature | 0 to 70℃ |
| Temperature of surroundings | 0 to 70℃ |
S-K704ST (Three-way port)
（Production range）
| Nominal diameter | 15A to 150A (Mixed flow type) 15A to 50A (Separated flow type) |
|---|---|
| Body material | FCD, SC, SCS, CAC |
| Pressure | MAX. 30 MPa |
| Temperature of fluid | －196 to 600℃ |
| Inner valve shape | P-port, Q-port |
| Characteristic | Linear, ON-OFF |
| Range ability | 30:1 |
| Allowable leakage | JIS B 2005-4 class 4,5 |
| Operating air temperature | 0 to 70℃ |
| Temperature of surroundings | 0 to 70℃ |
S-K704WT (Three-way port/Branched flow)
（Production range）
| Nominal diameter | 65A to 150A |
|---|---|
| Body material | FCD, SC, SCS, CAC |
| Pressure | MAX. 3.5 MPa |
| Temperature of fluid | －196 to 600℃ |
| Inner valve shape | P-port, Q-port |
| Characteristic | Linear, ON-OFF |
| Range ability | 30:1 |
| Allowable leakage | JIS B 2005-4 class 4,5 |
| Operating air temperature | 0 to 70℃ |
| Temperature of surroundings | 0 to 70℃ |
S-K705S (Single seat)
（Production range）
| Nominal diameter | 15A to 25A |
|---|---|
| Body material | FCD, SC, SCS, CAC |
| Pressure | MAX. 30 MPa |
| Temperature of fluid | －196 to 600℃ |
| Inner valve shape | P-port, Q-port |
| Characteristic | Linear, equal%, ON-OFF |
| Range ability | 30:1 |
| Allowable leakage | JIS B 2005-4 class 4,5 |
| Operating air temperature | 0 to 70℃ |
| Temperature of surroundings | 0 to 70℃ |