Chinese
In fields such as metrological verification, instrument calibration, and industrial control, precise and stable pressure sources are fundamental to ensuring the accuracy of pressure instruments. The bench-mounted manual pressure source, with its flexible manual control and stable pressure output, serves as a "standard tool" for pressure calibration in laboratories and workshops, providing reliable support for the accurate verification of various pneumatic instruments.
Traditional pressure calibration relies on large automated equipment, which often involves complex operations and delayed response, making it difficult to meet the verification needs for small batches and multiple specifications. The bench-mounted manual pressure source adopts a combination of a precision plunger pump and a fine-tuning valve, allowing continuous pressure adjustment simply by rotating a handwheel. Its output range covers -0.1 MPa to 6 MPa (with some high-pressure models reaching up to 10 MPa), and pressure stability is maintained within ±0.05% FS. Equipped with an air purification system, it effectively filters moisture and impurities from the air, preventing contaminants from entering the instrument under calibration. Coupled with a leak-proof sealing structure, it ensures long-term stability in pressure output, sustaining calibration for over 30 minutes without significant pressure decay.
This device plays a critical role in the following key scenarios:
- **Pressure gauge calibration laboratories**: Provides accurate standard pressure for verifying the indication errors of ordinary pressure gauges and precision pressure transmitters, ensuring compliance with national metrological standards.
- **Aerospace component testing**: Simulates pressure environments at different altitudes through manual adjustment to test the pressure resistance of sealing components.
- **Industrial production lines**: Quickly outputs specific pressure values to verify the actuation thresholds and response sensitivity of components such as pneumatic valves and pressure switches.
The portability and ease of operation of the bench-mounted manual pressure source also make it an ideal choice for on-site calibration. For example, during natural gas pipeline inspections, the device can be carried to the site to calibrate pressure gauges, eliminating the need for disassembly and laboratory recalibration. Its multi-interface conversion accessory is compatible with connectors of various specifications, meeting the calibration needs of pressure gauges, sensors, switches, and other devices, thereby enhancing the efficiency and accuracy of pressure calibration tasks