Seeking help with gas pressure regulator issues
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Recently, our company has developed gas pressure regulators with the following technical specifications: Process medium, application, pressure before the valve, pressure after the valve, dimensions, and flow rate. There is a special valve for use before natural gas burners, with a pressure of 0.1 MPa and a pressure range of 20–50 KPa; it has an NPS1 size and an internal thread diameter of 10 Nm3/h. Another such valve is designed for use before natural gas burners, also with a pressure of 0.1 MPa and a pressure range of 20–50 KPa; it has an NPS2 size and an internal thread diameter of 150 Nm3/h. After seeking information, no valve was found that could fully meet the requirements. For low-pressure Italian valves, it is recommended that the pressure before the valve not exceed 0.1 MPa, as there is a risk of the valve exploding. We then tried using Fisher valves, but the pressure before those valves was too low, posing a risk of them not functioning properly. Have any of you used similar valves? Please share your insights.
This post was last edited by bfdlwolf on 2018-10-23 at 22:42. Natural gas at 0.1 MPa is regulated to 20–50 KPa using a gas pressure regulator before being connected to the burner inlet. Provide the natural gas consumption, inlet pressure, and pressure regulation requirements; consult natural gas pressure regulator manufacturers, and they will help with the selection
Take the RTZ-※/※G series voltage regulators as an example. Product features: 1. Easy to install with low space requirements； High throughput and high precision. 2. It features low sensitivity and precise pressure control. 3. Simple pressure setting, efficient noise reduction design. 4. It can be maintained online, offering convenient operation and maintenance. 5. Stainless steel internal components, long service life. 6. When the medium contains corrosive substances such as sulfur and benzene, corrosion-resistant materials can be used. 7. Applicable media: natural gas, city gas, liquefied petroleum gas, air, etc. 8. It can be applied to urban gate stations, regional pressure regulation stations, industrial users, and gas turbine gas supply. Key technical parameters: Inlet pressure P1: 0.05～1.0 Mpa; Outlet pressure P2: 0.02～0.4 Mpa; Pressure stabilization accuracy δP2: ±5%; Shut-off pressure Pb: ≤1.15P2; Operating temperature: -20℃～60℃; Nominal pressure: PN0.8, PN1.6, PN2.5; Nominal pipe diameter: DN25, DN40, DN50
Use a stand-alone control valve to regulate the pressure behind the valve.
A self-acting micro-pressure control valve is selected. However, once the pressure behind the valve is adjusted, it cannot be changed; if there is a need to adjust the pressure behind the valve, it must be reset manually.