Stainless steel differential pressure table

YW - 150 - b seriesStainless steel differential pressure table(hereinafter referred to as the differential table) of the measurement system (double corrugated pipe and connecting parts), pilot pressure system (including joints, pipe, etc.) USES the stainless steel, with strong corrosion resistance and resistance to erosion effects work environment.Instrument the overall structure of reasonable design, advanced technology, has small volume, light weight, good stability, long service life, novel appearance, strong adaptability, etc.Instrument with parallel connection form of joint type (can be directly connected to the three valve group) and oblique type two kinds, can adapt to different users of form a complete set of installation.

Second, the working principle:

YW - 150 - b series stainless steel differential pressure table adopts double corrugated pipe structure, namely the two bellows installed respectively in the "work" word bracket on both sides of the symmetrical position."Work" word bracket of both ends up and down activities end and fixed end respectively, and the middle connected by a spring;Two bellows in parallel state, respectively with duct connected to the casing on high and low pressure connector;Gear drive mechanism installed directly in the fixed end bracket, and through the pull rod connected to the support activities at;Dial directly fixed on the gear transmission mechanism.

Instrument working principle: based on the sensing element adopted two have the same stiffness of the bellows, and so on under the same measured medium forced it to produce the same focus respectively on the legs, because of the spring waiting for a moment on both sides do not produce immunity, so the stent is still in the original position, the gear transmission mechanism is not action, make the pointer still refers to the zero.

When different pressure (generally high voltage side is higher than the low pressure side), the two forces acting on the legs of corrugated pipe is not equal, made to generate the corresponding displacement, and drives the gear transmission and amplification mechanism, by the pointer indicates that after the differential pressure between the two values.

Applications:

YW - 150 - b series of stainless steel pressure gauge is suitable for the chemical industry, chemical fiber, metallurgy, electric power, nuclear power and other industrial departments of technological process in the measurement of the medium of the liquid (gas) differential pressure, flow and other parameters.

Four, the main features:

1, divided into chrome steel mixing quality, and the structure and all stainless steel structure;All stainless steel structure corrosion resistance is strong;

2, for symmetrical design, high static pressure resistance, resistance to overload ability;

3, using special high performance elastic element, transmission error is small, indicating high accuracy;

4, high reliability and stability for the work;

5, control pressure range from zero to full range adjustable;

6, can take on a lower limit alarm switch output.

Five, the technical parameters:

1, the differential pressure measuring range, nominal working pressure, accuracy grades, and joint thread sizes;

2, guide pressure system and materials such as shell;

3, using the environment temperature: - 40 ~ 70 ℃.

4, weight: 1.5 kg;

5, instrument shell protection grade: IP54.

6, technical performance meet the enterprise standard Q/YXBM831-1997 "";

7, resistance to vibration environment: V.H. level 3.

Six, regular maintenance/repair:

1, after a period of use, and pressure, pressure gauge movement deformation and wear, hard to avoid can appear some pressure gauge can produce all kinds of errors and failures.In order to guarantee the accuracy of its original without distortion, dissemination should be replaced in a timely manner, to ensure that the correct, safe and reliable.

2, pressure gauges need to clean them regularly.Because the interior of the pressure gauge is not clean, will increase the wear parts, thus affecting its normal work, serious can make the pressure gauge failure, scrap.

3, the pressure on the installation of pressure gauge, according to the regulations of JJG52-1999, its verification period is generally not more than half a year.

4 and pressure medium to large fluctuations, used frequently, the accuracy of the demａnd is higher, and the more strict security factors, according to the specific circumstances will verification cycle shorten appropriately.

Seven, use notice:

1, when using the environment temperature for - 40 ~ 70 ℃, relative humidity is not more than 80%, such as deviation from normal use temperature 20 ℃, the temperature must be included in the additional error.

2, must be installed vertically, and strive to maintain the same level with measuring points, such as the difference between high included in the additional error caused by the liquid column, but don't have to consider when measuring gas.When installation will watch case vent at the back of the jam, lest affect explosion-proof performance.

3, when using normal use of the measuring range: no more than 3/4 of the measurement limit under static pressure, under the volatility should not be more than two-thirds of the measurement limit.In the above two kinds of low pressure situation under large pressure gauge measuring zui should not less than a third of the lower limit, vacuum parts all use measurement of a vacuum.

4, such as when using vacuum gauge pressure failure or internal parts loose, should not work properly when fault repairs, maintenance or production manufacturer.

Eight, design selection and ordering information:

1, when ordering please indicate the type, name, measuring range, joint thread size, precision grade.

2, if you have special requirements, when ordering, please specify.

After-sales service commitment:

1, our company sold by pressure gauge series product appeared quality problem within 12 months, responsible for free maintenance.

2, the warranty period, any quality problems such as the products of our company, my company is responsible for free repair or replacement.

3, the warranty period, such as user improper use, damaged products, my company is responsible for the maintenance, charge damage parts cost.

4, after the warranty period appear quality problem, my company is responsible for the maintenance, charge damage parts cost.

5, such as user need to my company site services, to users in the province I company service personnel to reach the site within 12 hours, fujian association of foreign languages and user reach the site within 48 hours.