I.T.O Corporation
ITO SGX Range Governor For Low Differential Pressures
Manufacturer: I.T.O Corporation
Model: SGX Range
Available Configurations and Options
Model Reference Guide
SGX- Model- Code
| Model | Connection |
|---|---|
| 8NA | Rc1/4 |
| 10A | Rc3/8 |
| 15N | Rc1/2 |
| 20N | Rc3/4 |
| 25N | Rc1 |
| 40N | Rc1 1/2 |
| 40 | Rc1 1/2 |
| 50N | Rc2 |
| 50 | Rc2 |
| 80 | JIS 10K 80A |
| 100 | JIS 10K 100A |
Code A: No Lockup Function (Aluminum Valve Disc Type)
Function
This type governor has no lockup function and regulates pressure by using an aluminum valve disc instead of a regular rubber (NBR) disc.
Code C: High Temperature Resistance Governor for COG
Function
Use this type governor if you use a gas that can corrode copper alloy, such as coke oven gas (COG), or if a governor becomes too hot due to hot fluid gas or extremely high ambient temperatures. Inner rubber parts or some metal parts will be exchanged.
Working Temperature Range: 0 ~ 80℃.
Code H: Variable Governor with External Handle
Function
This type governor has an external handle to make the outlet pressure setting easier.
Set Point Range: 0.50 ~ 4.00 kPa
Code Q: Quick Response Governor
Function
This type governor gives quick responses. Its fast stroking keeps the outlet pressure stable even if the flow rate changes rapidly after solenoid valves are operated on the line by changing the vent diameters on the body or the cover.
*The maximum inlet pressure will be lower than the standard unit.
| Model | Maximum Inlet Pressure |
|---|---|
| SGX-15NQ~SGX-50Q | 10.0kPa |
| SGX-40NQ/SGX-50NQ | 15.0kPa |
Code W: With Auto-Reset OPSO Valve
Function
Doubled SGX connected in series with additional AR-OPSO function. The upstream SGX as an OPSO shuts off gas to avoid pressure rises at outlet of this unit if inner sealing of the downstream SGX failed. Also the upstream SGX will function as a back-up governor even if the downstream SGX fails, and the outlet pressure abnormally rises at the unit outlet, and keep stable supply at the pre-set pressure.
R: Safety Relief Valve, Z: Zero Governor/Equalizing Regulator, ZT: Equalizing Regulator For more details, see each description within this catalogue.
Available Configurations at a Glance
| Model | SGX-8NA | SGX-10A | SGX-15N | SGX-20N | SGX-25N | SGX-40N | SGX-40 | SGX-50N | SGX-50 | SGX-80 | SGX-100 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Type A | No Lockup Function (Aluminum Valve Disc Type) | ✓ *1 | ✓ *1 | X | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | X | X |
| Type C | High Temperature Resistance Governor for COG | X | X | ✓ | ✓ | ✓ | X | X | ✓ | ✓ | ✓ | ✓ |
| Type H | Variable Governor with External Handle | X | X | ✓ | ✓ | ✓ | ✓ | X | X | X | X | X |
| Type Q | Quick Response Governor | X | X | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | X | X |
| Type W | With Auto-Reset OPSO Valve | X | X | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | X | X |
*1 The standard model of SGX-8NA and SGX-10A is Type A.
Governor for Low Differential Pressures
The SGX range is a direct-operated governor from Low Pressure or Low Intermediate Pressure to Low Pressure or Low Intermediate Pressure with a large capacity driven by low differential pressure.
Specifications
| Model | SGX-8NA | SGX-10A |
|---|---|---|
| Maximum Flow Rate | 4.3Nm³/h | 7.4Nm³/h |
| Inlet Pressure | 0.50~10.0kPa | |
| Outlet Pressure | 0.25~3.00kPa*1 | |
| Connection | Rc1/4 | Rc3/8 |
| Vent Connection | Rc1/8 | |
* No lockup function.
*1 Interchangeable springs are available.
Interchangeable Spring Selection
| Model | SGX-8NA/10A | ||||
|---|---|---|---|---|---|
| No. | ① | ② | ③ | ④ | ⑤ |
| Set Point Range(kPa) | 0.25~0.50 | 0.50~1.00 | 1.00~1.50 | 1.50~2.00 | 2.00~3.00 |
shows the standard spring.
| Flow Rate |
|---|
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Governor for Low Differential Pressures
The SGX range is a direct-operated governor from Low Pressure or Low Intermediate Pressure to Low Pressure or Low Intermediate Pressure with a large capacity driven by low differential pressure.
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Specifications
| Model | SGX-15N | SGX-20N | SGX-25N | SGX-40N | SGX-40 | SGX-50N | SGX-50 |
|---|---|---|---|---|---|---|---|
| Maximum Flow Rate (Nm³/h) | 32 | 50 | 70 | 200 | 215 | 390 | 430 |
| Inlet Pressure | 1.00~30.0kPa | ||||||
| Outlet Pressure | 0.50~20.0kPa*1 | ||||||
| Lockup Pressure | ≦2.95kPa*2 | ||||||
| Connection | Rc1/2 | Rc3/4 | Rc1 | Rc1 1/2 | Rc2 | ||
| Vent Connection | Rc1/2 | Rc1/4 | Rc3/4 | Rc1 | |||
*1 Interchangeable springs are available.
*2 Set Outlet Pressure at 2.00kPa.
Interchangeable Spring Selection
| Model | SGX-15N/20N/25N/40N/40/50N/50 | |||||
|---|---|---|---|---|---|---|
| No. | ① | ② | ③ | ④ | ⑤ | ⑥ |
| Spring Colour | White | Red | Blue | Yellow | Green | Black |
| Set Point Range(kPa) | 0.50~1.50 | 1.50~3.00 | 3.00~5.00 | 5.00~8.00 | 8.00~13.0 | 13.0~20.0 |
shows the standard spring.
| Flow Rate | |
|---|---|
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Governor for Low Differential Pressures
- The SGX-80 and SGX-100 incorporate a feedback mechanism that loads pressure to the diaphragm chamber of the main governor from the outlet side by the auxiliary adjusting governor. This allows stable pressure control despite their large capacity.
- This product is a large capacity regulator driven by low differential pressures, suitable for installation on the low pressure line.
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Specifications
| Model | SGX-80 | SGX-100 |
|---|---|---|
| Maximum Flow Rate (Nm³/h) | 865 | 1300 |
| Inlet Pressure(kPa) | 1.50~60.0 *1 | |
| Outlet Pressure(kPa) | 1.00~20.0 *1 *2 | |
| Lockup Pressure(kPa) | ≦2.95 *3 | |
| Inlet Connection | JIS 10K 80A Flange(RF) | JIS 10K 100A Flange(RF) |
| Outlet Connection | JIS 10K 80A Flange(FF) | JIS 10K 100A Flange(FF) |
| Vent Connection | Rc1 | |
*1 The differential pressure between inlet and outlet shall be 40.0kPa or less.
*2 Interchangeable springs are available.
*3 Set Outlet Pressure at 2.00kPa.
Interchangeable Spring Selection
| Model | SGX-80/100 | |||||
|---|---|---|---|---|---|---|
| No. | ① | ② | ③ | ④ | ⑤ | ⑥ |
| Set Point Range(kPa) | 1.00~1.50 | 1.50~4.00 | 4.00~8.00 | 8.00~11.0 | 11.0~16.0 | 16.0~20.0 |
shows the standard spring.
*When changing the adjusting spring of the main governor, it is also essential to change the adjusting spring of the auxiliary adjusting governor.
| Model | Auxiliary Adjusting Valve(SGX-20NRTG) | |||||
|---|---|---|---|---|---|---|
| Colour | White | Red | Blue | Yellow | Green | Black |
| Set Point Range(kPa) | 1.00~1.50 | 1.50~3.00 | 3.00~5.00 | 5.00~8.00 | 8.00~13.0 | 13.0~20.0 |
shows the standard spring.
| Flow Rate |
|---|
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