CYW-150B series stainless steel differential pressure gaugeDetailed product description：

CYW-150B series stainless steel differential pressure gauge

CYW-152B and CYW-153B stainless steel differential pressure gauges (hereinafter referred to as instruments) are suitable for measuring differential pressure, flow rate, and other parameters of various liquid (gas) media in the process flow of industrial sectors such as chemical, synthetic, metallurgical, power, and nuclear power. The instrument structure is entirely made of stainless steel, and the measuring system (double corrugated pipes and connecting components) and pressure guiding system (including joints, conduits, etc.) are made of special austenitic stainless steel, which has strong corrosion resistance and resistance to the impact of working environment erosion. The overall structure design of the instrument is reasonable, the technology is advanced, it has the advantages of small size, light weight, good stability, long service life, novel appearance, and strong adaptability. The connection forms of instrument connectors include parallel type (which can be directly connected to a three valve group) and oblique type, which can adapt to the matching installation of different users.

Structural principle:
The CYW-150B series stainless steel differential pressure gauge adopts a double bellows structure, that is, two bellows are installed on symmetrical positions on both sides of the "I" - shaped bracket. The upper and lower ends of the "I-shaped" bracket are respectively the movable end and the fixed end, connected by a spring plate in the middle; Two corrugated tubes are in parallel and connected to the high and low voltage connectors on the watch case through conduits; The gear transmission mechanism is directly installed on the fixed end of the bracket and connected to the movable end of the bracket through a pull rod; The dial is directly fixed on the gear transmission mechanism.

The working principle of the instrument is based on the use of two corrugated tubes with the same stiffness as the pressure sensing element. Therefore, under the same measured medium, they are forced to generate the same concentrated force and act on the movable bracket separately. Since the two sides of the spring plate do not produce disturbance under equal torque, the bracket is still in its original position, and the gear transmission mechanism does not move, so that the pointer still points to zero.
When different pressures are applied (usually the high-pressure end is higher than the low-pressure end), the forces exerted by the two corrugated pipes on the movable support are not equal, causing corresponding displacements and driving the gear transmission mechanism to transmit and amplify. The differential pressure value between the two is indicated by the deflection of the pointer.

Main technical indicators:
1. Measurement range of differential pressure, nominal working pressure, accuracy level, and joint thread size:

Differential pressure measurement range		Nominal work pressure		Accuracy Grade	Joint thread size
0-10 0-16 0-25 0-40 0-60 0-100	KPa	sixty one hundred one hundred and sixty two hundred and fifty four hundred six hundred	KPa	two point five	M20*1.5 NPT1/2
0-0.16 0-0.25 0-0.40 0-0.60 0-1 0-1.6 0-2.5	MPa	one one point six two point five four six ten ten	M

2. Materials of pressure guiding system and shell:

Part Name	Material grade (code)
Connectors and conduits	0Cr17Ni12Mo2(316)
bellows	0Cr17Ni14Mo2(316L)
Case, cover, bezel	0Cr18Ni9(304)

3. Appearance and installation dimensions: see Figure 1, Figure 2, Figure 3

4. Operating environment temperature: -40~70 ℃
5. Resistance to working environment vibration: V.H.3 level
6. Weight: Approximately 1.5kg
7. Protection level of instrument casing: IP54
8. The technical performance of the instrument complies with the enterprise standard Q/YXBM831-1997 "Stainless Steel Differential Pressure Gauge"