The most economical CNG sensor solution is also highly reliable. It does not have a high level of water resistance, but it can meet the demand and at the same time, it is easier to maintain.

Brand	XK	model	YR50
Types of	Cng gas pressure gauge	Measuring range	0-400bar/psi 0-40Mpa/psi（kPa）
Accuracy level	Level 2.5	Connection type	G1/4 m14*1.5 1/4pt, etc.
Nominal diameter	50（mm）	Ambient temperature	-40-70（℃）

Cng gas pressure gauge

ø summary

The cng gas pressure gauge is an important accessory for natural gas vehicles.Installed on the intake valve of the car cng pressure reducing regulator connected to the cylinder, the main function is to display the pressure of natural gas in the cylinder.The inside of the case is equipped with a gas pressure sensor, which can transmit the pressure signal to the oil and gas transfer switch in the cab of the car, so as to understand the capacity of the natural gas in the cylinder.

ø standard specifications

l Model: yr (photoelectric)

l accuracy level: 2.5

l Shell nominal diameter: 50

l Measurement range: 0-400bar/psi 0-40mpa/psi

l Installation method: radial

l joint thread and material: can make metric thread and npt, bsp, bs, un and other British and American thread; material: brass and stainless steel

l shell material: sus304, abs

l Baden tube material: bronze, sus316l

l Internal machine material: brass, sus304

ø model representation

Ø scale range

model	Scale range
yr—50	0-400bar/psi 0-40mpa/psi

ø dimensions

Figure 1. Radial (j) Figure 2. Axial (z)

model	dj	aj	hj
yr-50	48mm	31mm

ø model specifications

l with Rovato watch

1) Wiring method:

Red: dc-12v

White: output signal

Black: ground

2) Working methods:

Pressure dial showing pressure value	Oil and gas conversion light display switch display status
0-3mpa	Red light
5mpa	Red light is off, 1 green light is on
10mpa	Red light is off, 2 green lights are on
15mpa	Red light is off, 3 green lights are on
20mpa or more	Red light is off, 4 green lights are on

l with Rovato watch

lcb08

Red: dc-5v

lcb02

Black: ground

8mpa

12mpa

16mpa or more

l long-line waterproof type watch

Pressure dial showing pressure value

0mpa

4mpa