Bellows pressure gauge
Bellows pressure gauge is suitable for measuring corrode the copper alloy, no explosion danger of mi…
Description：
YE - 100 - b seriesBellows pressure gaugeThe bellows as the measurement of tiny pressure sensitive element.Measure the corrode the copper alloy, no explosion danger the micro pressure and negative pressure of the gas, widely applied to boiler ventilating, gas pipeline, burning device and other similar devices.
Stainless steel pressure according to the guide system and the shell adopt stainless steel material.Applied in corrosion resistance to demand higher on all kinds of gas medium in the process of micro pressure and negative pressure measurement.
With reference to the structure characteristics and development of stainless steel with corrosion resistant effect of micro pressure gauge.Used in boiler ventilation and gas pipeline equipment, such as the corrosion to demand higher technological process in the measurement of micro pressure and negative pressure of various gas medium.
Second, the working principle:
YE - 100 - b series bellows pressure gauge by measuring system (including joints, corrugated bellows, etc.), drive mechanism (including the pull rod, gear transmission mechanism), indicating device (including a pointer and dial) and the shell (including casing, lining and table glass).
Is based on the corrugated bellows under pressure measured medium, its free end produce elastic deformation, then through a pull rod and amplification, transmission gear transmission mechanism by pointer fixed on gear shaft by measured values will be indicated on the dial out.
Applications:
YE - 100 - b series bellows bellows pressure gauges used as a measurement of tiny pressure sensitive element.Measure the corrode the copper alloy, no explosion danger the micro pressure and negative pressure of the gas, widely used in boiler ventilation, gas pipeline, burning device and other similar devices.
Four, the main features:
1, stable performance, high measurement precision, response speed faster.
2, measuring the total pressure, including gas and steam pressure.
3, the results of the measurement has nothing to do with the gas species, composition and properties.
4, in the process of the pressure, suction and deflated pressure gauge itself is very small, will not affect the measured pressure.
5, no high temperature parts, won't make the oil vapor.
6, if choose corrosion resistant materials, can measure the corrosive gas pressure.
7, firm structure, and sealing and makes the pipes easier to install.
8, easy operation, do not need to adjust, but need to check on a regular basis.
Five, the technical parameters:
1, the scale range, accuracy grade and weight;
model | Scale range kPa | Accuracy grades + / - % basic error limits | Kg weight | ||
Positive pressure | Negative pressure | Is negative pressure | |||
YE-60 YE-100 YE-150 | 0 ~ 1.6 0 ~ 2.5 0 ~ 4 * 0 to 6 0 ~ 10 * 0 ~ 16 * 0 ~ 25 * 0 ~ 40 * | - 1.6 ~ 0 - 2.5 ~ 0 - 4 ~ 0 - 6 ~ 0 - 10 ~ 0 - 16 ~ 0 - 25 ~ 0 - 40 ~ 0 | - 0.8 ~ + 0.8 - 1.2 ~ + 1.2 - 2 ~ + 2 - 3 ~ + 3 - 5 ~ + 5 - 8 ~ + 8 - 12 ~ + 12 - 20 ~ + 20 | 2.5 | 0.5 |
Note: Y - 60, 100 * specifications only.
2, joint thread sizes: M20X1.5;
3, work location, environment, instrument installation, vertical working environment temperature is 25 ~ 55 ℃, relative humidity is not more than 80%, and contain no corrosion instrument of harmful gas in the ambient air.
Sixth, the material of parts:
Part name | Material mark |
joint | Brass HPb59-1 |
bellows | Tin bronze QSn6.5-0.1 |
Gear transmission mechanism | Copper HPb59-1 |
Atlas, cover | Cold rolled steel sheet 20 |
Seven, 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.
Eight, use the matters needing attention:
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.
Nine, 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.
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