ITO MHR-25 House Regulator

Manufacturer: I.T.O Corporation
Model: MHR-25

Incorporated: Relief, MR-OPSO, Strainer.

MHR-25 is a meter regulator from Medium Pressure B to Low Pressure or Low Intermediate Pressure and multiple safety devices into one compact body.
Designed to supply city gas natural gas for meters with outstanding quick response and flat flow rate characteristics.

Specifications

Model		MHR-25
Maximum Flow Rate(Nm³/h)		140
Inlet Pressure		0.05~0.30MPa
Outlet Pressure		1.50~20.0kPa*1
Lockup Pressure		≤2.50kPa*²
Safety Relief Valve	Start-to-Discharge	3.20±0.40kPa*2
Safety Relief Valve	Stop-to-Discharge	2.52~3.60kPa*2
Manual-Reset OPSO	Working Pressure	4.20±0.40kPa*2
Manual-Reset OPSO	Reset Method	Manual by Pulling the Indicator
Inlet Connection		JIS 10K 25A Flange (FF)
Outlet Connection		JIS 10K 40A Flange (FF)
Strainer Mesh Gauge		150 Mesh

*1 Interchangeable springs are available.
*2 Based on 2.00 kPa set point.

Interchangeable Spring Selection

No.	②	③	④
Set Point Range(kPa)	1.50~3.00	3.00~5.00	5.00~8.00

No.	⑤	⑥
Set Point Range(kPa)	8.00~13.0	13.0~20.0

shows the standard spring.

Safety Relief Valve

A valve that opens and releases overpressure into the air to prevent abnormal pressure increases.

Manual-Reset OPSO (MR-OPSO)

The ITO “MR-OPSO”, a manual-reset type OPSO, shuts off gas upstream of pressure governor to avoid abnormal pressure increases. Manual reset type overpressure shut-off valve to be reset by pulling the indicator.