ITO NBG Range AA/ AB Governor

Manufacturer: I.T.O Corporation
Model: NBG Range

AA Governor

Incorporated: Strainer

The NBG-50-MA range is a direct-operated governor from Medium Pressure A to Medium Pressure A.
The NBG-50MA with a higher outlet capability of 0.30~0.55 MPa is newly added to our product line. This product can correspond to the co-generation system incorporating a 2000~5000 kW gas engine, which are used in factories or large-scale commercial use, such as hospitals and hotels.

Specifications

Model	NBG-50-MA-S	NBG-50-MA-L
Type	Straight Type	Angle Type
Maximum Flow Rate(Nm³/h)	1600
Inlet Pressure(MPa)	0.70~0.99
Outlet Pressure(MPa)	0.30~0.55
Lockup Pressure(MPa)	≤Set Point+0.05
Connection	JIS 10K 50A Flange (FF)
Vent Connection	Rc1/4
Strainer Mesh Gauge	100 Mesh*1

*1 The strainer with 200 mesh is also available.

AB Governor

Incorporated: AR-OPSO*, Strainer. (*NBG-50H only)

The NBG range is a direct-operated governor from Medium Pressure A to Medium Pressure B, which provides outstanding quick response and easy maintenance.
The NBG-50 incorporates the ITO balancing piston system, which minimises any outlet pressure fluctuations caused by differing inlet pressures. This system allows the NBG range to give accurate and stable pressure control.
Since this model has the simple structure of a direct-operated regulator, it gives quick responses and is easy to handle and maintain.

Specifications

Model		NBG-50-S	NBG-50-L	NBG-50H-S	NBG-50H-L
Type		Straight Type	Angle Type	Straight Type	Angle Type
Maximum Flow Rate(Nm³/h)		1000
Inlet Pressure(MPa)		0.30~0.99
Outlet Pressure(MPa)		0.02~0.30*2
Lockup Pressure(MPa)		≤Set Point × 1.3 (Minimum: Set Point+0.012)		≤Set Point × 1.2 (Minimum: Set Point+0.012)
Auto-Reset OPSO	Working Pressure			≤Lockup Pressure+0.03MPa
Auto-Reset OPSO	Reset Method			Resets automatically after outlet pressure resumes its normal range.
Connection		JIS 10K 50A Flange (FF)
Vent Connection		Rc1/4
Strainer Mesh Gauge		100 Mesh*3

*2 Interchangeable springs are available.
*3 The strainer with 200 mesh is also available.
*NBG-50H range requires 0.1MPa or more differential pressure between inlet and outlet.