Manufacturer: I.T.O Corporation
Model: NMF Range
AB Governor
Incorporated: Strainer*. (*NMF-20 only)
- The NMF range is a direct-operated governor from Medium Pressure A to Medium Pressure B, which provides outstanding quick response and easy maintenance.
Specifications
| Model | NMF-20 | NMF-25 | NMF-25-40 | NMF-40 | NMF-50 | NMF-80 | NMF-100 |
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| Maximum Flow Rate (Nm³/h) | 130 | 190 | 380 | 580 | 950 | 1600 | 1600 |
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| Inlet Pressure | 0.10~0.99MPa |
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| Outlet Pressure | 0.02~0.30MPa*1 |
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| Lockup Pressure | ≤Set Point × 1.3MPa (Minimum: Set Point+0.012MPa) |
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| Inlet Connection | JIS 10K 20A Flange(FF) | JIS 10K 25A Flange(FF) | JIS 10K 25A Flange(FF) | JIS 10K 40A Flange(FF) | JIS 10K 50A Flange(FF) | JIS 10K 80A Flange(FF) | JIS 10K 100A Flange(FF) |
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| Outlet Connection | JIS 10K 20A Flange(FF) | JIS 10K 25A Flange(FF) | JIS 10K 40A Flange(FF) | JIS 10K 40A Flange(FF) | JIS 10K 50A Flange(FF) | JIS 10K 80A Flange(FF) | JIS 10K 100A Flange(FF) |
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| Vent Connection | Rc1/4 |
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*1 Interchangeable springs are available.
BB Governor
The NMF, for the medium pressure B to B, even driven by low differential pressure.
Specifications
| Model | NMF-25-40-2 | NMF-50-2 |
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| Maximum Flow Rate(Nm³/h) | 200 | 300 |
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| Inlet Pressure(kPa) | 50.0 ~ 100 |
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| Outlet Pressure(kPa) | 10.0 ~ 30.0 |
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| Lockup Pressure(kPa) | ≤Set Point+12.0kPa |
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| Inlet Connection | JIS 10K 25A Flange (FF) | JIS 10K 50A Flange (FF) |
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| Outlet Conecction | JIS 10K 40A Flange (FF) | JIS 10K 50A Flange (FF) |
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NMF-W
- NMF-W unit is also available, which doubled NMF connected in series with additional AR-OPSO function.
- The upstream NMF as an OPSO shuts off gas to avoid pressure rises at outlet of this unit if inner sealing of the downstream NMF failed. Of course, the upstream NMF will function as a back-up governor even if the downstream NMF fails, and the outlet pressure abnormally rises at the unit outlet, and keep stable supply at the pre-set pressure.
Interchangeable Spring Selection
| Set Point Range(MPa) | 0.02~0.03 | 0.02~0.06 | 0.02~0.10 | 0.02~0.15 | 0.02~0.20 | 0.02~0.30 |
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| No. | NMF-20 | ④ | ⑤ | ① | ② | ③ |
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| NMF-25~NMF-100 | A0 | A1 | A1+B1 | A2 | A2+B1 | A2+B2 |
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shows the standard spring.
