Wholesale Auto Cng Methane Manometer Pressure Gauge for Sequential Injection System
The auto CNG methane manometer pressure gauge is an essential monitoring component for vehicle CNG sequential injection conversion systems. It displays real-time gas cylinder pressure value, helping drivers and technicians observe remaining gas pressure status during daily driving and system maintenance. This series of manometers supports multiple model variants including RC-01, RC-02, RC-03/CB01, RC-04/CB02, RC-05/CB08, RC-06 with different input voltage and output voltage characteristics for 40bar-150bar working pressure. Built with robust steel, brass and polycarbonate materials, this pressure gauge offers dual-scale bar and psi readings. Custom diameter sizes from 1 inch to 8 inch are available for gas and petroleum pipeline projects. Suitable for taxis, passenger cars and light-duty vehicles retrofitted with CNG systems, it is widely supplied for modification workshops, overseas distributors and bulk export orders.
Product Technical Specifications
| Product Name | Auto CNG Methane Manometer Pressure Gauge |
| Case Material | Black Steel case and PC sensor cover |
| Window | Polycarbonate, glass |
| Standard Size | 2"(50mm), other sizes available |
| Bottom Connection | Brass thread & internal |
| Thread Size | 1/4"BSP; 1/4NPT |
| Thread Style | PF, NPT, PT, BSPT/ZG |
| Bourdon Tube | C form or Coiled shape |
| Dial and Pointer | Plastic / Aluminum |
| Accuracy Class | 2.5%, 1.6% |
| Pressure Range | 0~400 bar, 0~6000psi (dual scale) |
| Measuring Range | 0~200bar |
| Supply Voltage | 12v DC |
| Custom Service | Series gauges for gas and petroleum lines, diameter 1"-8" |
Typical Electrical Output For Different Models
| Model | Input | 40±10bar | 70±10bar | 110±10bar | 150±10bar |
| RC-01 /5V | +5v | 4v | 3v | 2v | 1v |
| RC-02 /12V | +12v | 9.6v | 7.2v | 4.8v | 2.4v |
| RC-03 /CB01 | +12v | 1.3v | 2.3v | 3.3v | 4.3v |
| RC-04 /CB02 | +12v | 3.7v | 2.7v | 1.7v | 0.8v |
| RC-05/CB08 | +5v | 3.8v | 2.8v | 1.8v | 0.8v |
| RC-06 | +12v | 0.8v | 1.8v | 2.8v | 3.8v |
Core Product Features
Professional CNG methane manometer specially designed for autogas sequential injection conversion system for pressure real-time monitoring
Dual-scale dial with bar and psi units, measuring range covers 0-200bar, maximum pressure up to 400bar
Multiple thread options including NPT, BSP, PF, PT, BSPT/ZG brass internal thread for global market installation requirements
Multiple model options with different 5V /12V input and corresponding voltage output signals to match various CNG ECU and switch modules
High-accuracy class 1.6% /2.5%, reliable C-form or coiled bourdon tube for stable pressure sensing performance
Durable black steel housing and polycarbonate or glass window, good anti-shock performance for vehicle vibration environment
Support custom diameters 1-8 inch, applicable not only for vehicles but also gas and petroleum pipeline monitoring projects
Wholesale-oriented, fit full CNG conversion kits, compatible with reducers, ECU, indicator switches for petrol-gas retrofit
Application Scope
This CNG methane manometer pressure gauge is widely installed on CNG gas cylinders for 4/6/8-cylinder sequential injection vehicles such as sedans, taxis and light-duty fleet cars. It sends pressure signal to CNG indicator switch and ECU unit. Besides vehicle gas modification, customized size gauges are available for natural gas and petroleum pipeline monitoring. It supplies for auto modification garages, international wholesalers and large-scale gas-retrofit projects in global markets.
Manufacturing & Quality Assurance
Each manometer passes pressure calibration, electrical signal output inspection and sealing test before shipment, to guarantee reading accuracy and stable signal output for autogas conversion systems.
Frequently Asked Questions
Q: What is the power supply requirement for this CNG manometer?
A: Standard supply voltage is 12V DC; partial models support 5V DC input. Please select correct model according to your CNG ECU or indicator switch specifications.
Q: How many thread styles are available for this CNG pressure gauge?
A: We provide PF, NPT, PT, BSPT/ZG thread styles, including 1/4"BSP and 1/4NPT brass internal bottom connection for different regional standards.
Q: What is the difference among RC-01,RC-02,CB01,CB02,CB08 series manometers?
A: They differ in input voltage and voltage output value under same pressure. You need to match the output curve with your existing CNG system controller.
Q: Can I get custom-size pressure gauges for gas pipeline projects?
A: Yes, custom diameter range from 1 inch to 8 inch for gas and petroleum line applications besides vehicle-use CNG manometers.
Q: Can I mix-order this manometer with other CNG conversion spare parts?
A: Yes, you can combine orders with reducers, sensors, indicator switches, filters and other autogas accessories for consolidated shipment.
