Industrial and Commercial/Boiler/Combustion Pressure Regulation Solutions
RTZ-40/0.8 (LCS400) Gas Pressure Regulator
◉ Application
This pressure regulator is suitable for various direct-fired equipment and adaptable to multiple scenarios including residential areas, commercial premises, and industrial sites. It can be used with a variety of non-corrosive gases such as natural gas, artificial coal gas, and liquefied petroleum gas (LPG).
◉ Features
- High pressure regulation precision
- Sensitive shut-off response
- Simple pressure setting operation
- Longer service life

◉ Technical Parameters
General Specifications
- Inlet Pressure (P₁): 1.4 - 8.6 bar (20 - 125 Psi)
- Outlet Pressure (P₂):
- 15 - 20 mbar (1.5 - 2.0 KPa)
- 19 - 27 mbar (1.9 - 2.7 KPa)
- 25 - 35 mbar (2.5 - 3.5 KPa)
- 30 - 47 mbar (3.0 - 4.7 KPa)
- 45 - 70 mbar (4.5 - 7.0 KPa)
Domestic Version Specifications
- Inlet Pressure (P₁): 2 bar
- Outlet Pressure (P₂):
- 30 - 70 mbar (3 - 7 KPa)
- 70 - 150 mbar (7 - 15 KPa)
- 150 - 300 mbar (15 - 30 KPa)

Common Technical Indicators
- Pressure Stabilization Precision (A): AC 10
- Shut-off Pressure (Pᵦ): SG 20
- Flow Rate: 200 Nm³/h (Note: "Nm³/h" = "normal cubic meters per hour", a standard unit for gas flow measurement under standard conditions of 0 °C and 1 standard atmospheric pressure)
- Operating Temperature: -29 °C ~ 66 °C
- Nominal Diameter (DN): DN 40×DN 40, DN 50×DN 50
- Connection Type: NPT thread (Note: "NPT" = "National Pipe Thread Taper", a North American standard tapered thread for sealed pipe connections)
Supplementary Notes on Key Terms
- Pressure Unit Relationships: 1 bar = 1000 mbar = 100 KPa ≈ 14.5 Psi; understanding this helps in intuitively comparing pressure values in different units.
- Direct-fired Equipment: Refers to devices that use gas as fuel and burn it directly to produce heat or energy (e.g., gas stoves, industrial gas-fired boilers, commercial gas water heaters).
- Domestic Version: Specifies parameters for the regulator model produced locally (in China), which may differ from international standard versions in pressure ranges to adapt to domestic gas system requirements.