The HA-A1 safety valve on-line detector is a portable instrument suitable for the detection of various spring type safety valves and pressure relief valve opening pressures in the field of boiler pressure vessels. It can measure the opening pressure of safety valves when the production device is not stopped. Without the need to increase system pressure.
It can carry out online emergency response to problems occurring during the operation of the online safety valve. For example, online resetting of the safety valve with unsuccessful opening pressure, and effective forced shutdown of the safety valve with leakage after the return seat without changing its setting pressure.
It can carry out "annual inspection" and setting of the online safety valve for long-term operation of the valve for more than one year, in order to comply with the national competent department's regulatory requirements for the safety valve at least once a year.
When the safety valve performs so-called "cold" testing under normal pressure, it can solve the following practical problems on site:
When the major overhaul starts to stop, the safety valve that does not need to be overhauled is selected, especially the valve with the large diameter and high position, which saves cost and time limit;
After the calibration table is set, the pressure of the safety valve is often changed after transportation, installation, and other aspects. For this purpose, the pressure is adjusted before the material is driven.
Check the safety valve in series with the bursting plate;
After the welding valve on-site grinding setting;
The design of the pressure relief valve for various heating and heating boilers before the furnace is opened. The design of this instrument has widely absorbed the advantages of similar products from home and abroad so far, and it has undergone major reforms combined with years of testing experience and various needs of users. The main features are as follows:
1. Discriminate the criteria using the valve flap fretting method and strictly comply with international standards.
2. The detection is that the valve flap does not jump and does not disturb the production conditions.
3. The novel screw-type chuck ensures that the mechanical bracket can be firmly and securely fixed on the safety valve, and the variable-diaphragm chuck can adapt to many different sizes of valve stems.
4. Safe and reliable limit mechanism, limit the opening height, does not disturb the production conditions.
5. When there is a leak after returning seat, a strong closing system can be used to forcibly close the valve flap. High-pressure and ultra-high pressure safety valves can use our company's specially designed light hydraulic pressure closing system without affecting the constant pressure value.
6.Hydraulic mode of the external force system, the force is stable, suitable for larger external force applications, the external force curve is smooth and stable.
7. High-sensitivity audio monitoring technology.
8. It can detect the opening pressure of safety valve in online hot and cold state.
9. Non-threaded stems can use special coupling clamping systems.
10. Adopt high-precision A/D reference power module to ensure measurement accuracy.
11. Easy to install, easy to operate.
Scope of application
1, the detection process does not contact the working medium, therefore, in theory, the use of the instrument and the detection of the safety valve work medium type and media pressure, temperature has nothing to do.
2, for a variety of models, size and structure of the spring-type safety valve, pressure relief valve testing.
3, to be careful when dealing with the following situations:
The more viscous medium contains solid particulate matter entrained media.
Deep cryogenic medium.
Note: This instrument cannot be used for spring-loaded safety valves, such as liquefied gas brakes.
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It can carry out online emergency response to problems occurring during the operation of the online safety valve. For example, online resetting of the safety valve with unsuccessful opening pressure, and effective forced shutdown of the safety valve with leakage after the return seat without changing its setting pressure.
It can carry out "annual inspection" and setting of the online safety valve for long-term operation of the valve for more than one year, in order to comply with the national competent department's regulatory requirements for the safety valve at least once a year.
When the safety valve performs so-called "cold" testing under normal pressure, it can solve the following practical problems on site:
When the major overhaul starts to stop, the safety valve that does not need to be overhauled is selected, especially the valve with the large diameter and high position, which saves cost and time limit;
After the calibration table is set, the pressure of the safety valve is often changed after transportation, installation, and other aspects. For this purpose, the pressure is adjusted before the material is driven.
Check the safety valve in series with the bursting plate;
After the welding valve on-site grinding setting;
The design of the pressure relief valve for various heating and heating boilers before the furnace is opened. The design of this instrument has widely absorbed the advantages of similar products from home and abroad so far, and it has undergone major reforms combined with years of testing experience and various needs of users. The main features are as follows:
1. Discriminate the criteria using the valve flap fretting method and strictly comply with international standards.
2. The detection is that the valve flap does not jump and does not disturb the production conditions.
3. The novel screw-type chuck ensures that the mechanical bracket can be firmly and securely fixed on the safety valve, and the variable-diaphragm chuck can adapt to many different sizes of valve stems.
4. Safe and reliable limit mechanism, limit the opening height, does not disturb the production conditions.
5. When there is a leak after returning seat, a strong closing system can be used to forcibly close the valve flap. High-pressure and ultra-high pressure safety valves can use our company's specially designed light hydraulic pressure closing system without affecting the constant pressure value.
6.Hydraulic mode of the external force system, the force is stable, suitable for larger external force applications, the external force curve is smooth and stable.
7. High-sensitivity audio monitoring technology.
8. It can detect the opening pressure of safety valve in online hot and cold state.
9. Non-threaded stems can use special coupling clamping systems.
10. Adopt high-precision A/D reference power module to ensure measurement accuracy.
11. Easy to install, easy to operate.
Scope of application
1, the detection process does not contact the working medium, therefore, in theory, the use of the instrument and the detection of the safety valve work medium type and media pressure, temperature has nothing to do.
2, for a variety of models, size and structure of the spring-type safety valve, pressure relief valve testing.
3, to be careful when dealing with the following situations:
The more viscous medium contains solid particulate matter entrained media.
Deep cryogenic medium.
Note: This instrument cannot be used for spring-loaded safety valves, such as liquefied gas brakes.