Jinhu Hongchuang W-153B stainless steel differential pressure gauge

-B and -B stainless steel differential pressure gauges (hereinafter referred to as differential pressure gauges) are suitable for measuring the differential pressure, flow rate and other parameters of various liquid (gas) media in the process flow of chemical industry, chemical fiber, metallurgy, electric power, nuclear power and other industrial sectors. . The structure of the stainless steel differential pressure gauge is entirely made of stainless steel. The measurement system (double bellows and connecting parts) and pressure guiding system (including joints, conduits, etc.) are made of special austenitic stainless steel, which has strong corrosion resistance and Resistant to the corrosive effects of the working environment. The overall structure of the instrument is reasonably designed, advanced in technology, and has the advantages of small size, light weight, good stability, long service life, novel appearance, and strong adaptability. The connection forms of the instrument connector include parallel type (can be directly connected to the three-valve group) and oblique type, which can adapt to the matching installation of different users.
■ Structural principle:
The instrument adopts a double bellows structure, that is, two bellows are installed at symmetrical positions on both sides of the I-shaped bracket. &;The upper and lower ends of the I-shaped bracket are the movable end and the fixed end respectively, and are connected by a spring leaf in the middle; the two bellows are in a parallel state and are connected to the high and low pressure joints on the watch case by conduits respectively; the gear transmission mechanism It is directly installed on the fixed end of the bracket and connected to the movable end of the bracket through a tie rod; the dial is directly fixed on the gear transmission mechanism.
The working principle of the instrument: Based on the pressure-sensitive element using two bellows with the same stiffness, the same measured medium is forced to produce the same concentrated force acting on the movable bracket respectively. Since both sides of the spring leaf are There is no disturbance under the action of equal torque, so the bracket is still in the original position, so the gear transmission mechanism does not move, so that the pointer still points to the zero position.
When different pressures are applied (generally, the high-pressure end is higher than the low-pressure end), the forces acting on the movable bracket of the two bellows are not equal, causing corresponding displacements to occur respectively, and drive the gear transmission mechanism to transmit and amplify. The pointer deflects to indicate the differential pressure between the two.
■ Main technical indicators:
.Differential pressure measurement range, nominal working pressure, accuracy level and joint thread size:
Differential pressure measurement range
Nominal working pressure
Accuracy level
Head thread size
~~~
~~~
.
.
/
~.~.~ .
~.~~.
~.
..
.Materials of pressure guiding system and shell:
Part name
Material grade (code)
Connectors, conduits
()
Bellows
()
Watch cases, watch covers, watch rings
()
.Use environment Temperature: -～℃
. Weight: approx.
. Protection level of instrument shell:
. Technical performance of the instrument conforms to enterprise standards/B-"Stainless Steel Differential Pressure Gauge"
. Resistance Working environment vibration: .. level_ />