I.T.O Corporation
ITO PRAD-AB Range AB Governor Unit
Manufacturer: I.T.O Corporation
Model: PRAD-AB Range
Incorporated: Relief, MR-OPSO, Strainer
Japan Gas Association Technical Prize
- The PRAD-AB range is a unit of pressure reducing governors from Medium Pressure A to Medium Pressure B and multiple safety devices into one same compact body.
- Widely used as an Exclusive Governor or a District Governor.
- Pilot-operated governors used, which provides outstanding stability of outlet pressure.
- The easily removable and attachable main valve to the main governor and the combined SOV and strainer filter make maintenance easier.
- 2 options, large flow rate type with an adjustable restrictor, or the high stability type with a fixed restrictor.
- The inlet and outlet directions of PRAD-AB-H can be selected from 4 options. Please specify your required mounting position when placing your order.
 |  |
PRAD-AB-V
| PRAD-AB-H
|
Main Components
| No. | Item Name |
|---|---|
| ① | Main Manual-Rest OPSO |
| ② | Main Filter |
| ③ | Main Regulator |
| ④ | Main Pilot Regulator |
| ⑤ | Safety Relief Valve |
| ⑥ | Bypass V-Port Valve |
| ⑦ | Sub Manual-Rest OPSO |
| ⑧ | Sub Filter |
| ⑨ | Sub Regulator |
| ⑩ | Sub Pilot Regulator |
Specifications
| Model | PRAD-AB-V (Vertical Type) PRAD-AB-H (Horizontal Type) | |||||
|---|---|---|---|---|---|---|
| Set Point(MPa) | 0.06 | 0.10 | 0.15 | 0.18 | 0.20 | |
| Maximum Flow Rate(Nm³/h) | Venturi Restrictor: 6800 Fixed Restrictor: 6500 | |||||
| Inlet Pressure(MPa) | 0.30~0.99 | |||||
| Outlet Pressure (MPa) | Main Line | 0.06 | 0.10 | 0.15 | 0.18 | 0.20 |
| Sub Line | 0.04 | 0.08 | 0.13 | 0.16 | 0.18 | |
| Lockup Pressure (MPa) | Main Line | 0.08 | 0.12 | 0.17 | 0.20 | 0.22 |
| Sub Line | 0.06 | 0.10 | 0.15 | 0.18 | 0.20 | |
| Safety Relief Valve(MPa) | Start-to-Discharge | 0.12±0.01 | 0.16±0.01 | 0.21±0.01 | 0.24±0.01 | 0.26±0.01 |
| Stop-to-Discharge | 0.09~0.13 | 0.13~0.17 | 0.18~0.22 | 0.21~0.25 | 0.23~0.27 | |
| MR-OPSO (MPa) | Main Line | 0.10 | 0.14 | 0.19 | 0.22 | 0.24 |
| Sub Line | 0.16 | 0.20 | 0.25 | 0.28 | 0.30 | |
| Reset Method | Manual by Pulling the Red Indicator | |||||
| Inlet Connection | JIS 10K 80A Flange (FF) | |||||
| Outlet Connection | JIS 10K 200A Flange (FF) | |||||
| Sensing Line Connection | JIS 10K 50A Flange (FF) | |||||
| Strainer Mesh Gauge | 400 Mesh | |||||
*A fine mesh strainer to prevent particles from dusty gas is also available.
*PRAD-AB requires 0.1MPa or more differential pressure between inlet and outlet.
| Flow Rate |
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Storage Box
A dedicated aesthetically designed storage box offers additional protection from rain, wind and noise and providing full security.
