Quick Connector Verification Table Accessories

The quick connector is a seemingly simple but crucial component on the calibration bench, and its function directly affects the efficiency, safety, and accuracy of the calibration work. --- 1、 Core function: Efficient and reliable connection and sealing The core function of the calibration table quick connector is to establish a fast, leak free, and repeatable fluid (oil, water, gas) channel between the calibration instrument (standard) and the calibrated gauge (such as pressure gauge, pressure transmitter, pressure switch, etc.). It completely replaces the traditional and cumbersome connection method of threading raw tape and manually tightening it. --- 2、 Specific functions and core advantages brought about 1. Improve efficiency and achieve "fast" verification ·Plug in and disconnect ": The operation time has been reduced from a few minutes to a few seconds, without the need for tools. ·Meaning: In large-scale instrument calibration (such as regular factory inspections and batch calibration in instrument workshops), efficiency is improved by hundreds of times, greatly reducing labor costs and downtime. 2. Ensure connection sealing and ensure accurate data ·Zero leakage design: High quality quick couplings are equipped with precision sealing rings (such as O-rings) that automatically form a reliable seal at the moment of connection, effectively preventing pressure media (especially gases and expensive, harmful liquids) from leaking during high pressure or holding tests. ·Meaning: Leakage is a major taboo in pressure calibration, which can lead to unstable pressure and reading drift, directly affecting the accuracy and repeatability of calibration results. Quick connectors are the key to ensuring a stable calibration process. 3. Protect precision equipment and extend its service life ·Prevent "overtightening" and "wrong threading": Threaded connections can easily damage the precision threaded ports (commonly known as "sliding threads") of instruments or calibrators due to excessive force. The quick connector adopts a plug-in type, fundamentally avoiding this type of mechanical damage. ·Self equipped valve core: Most quick couplings used for pressure calibration are of the locking type. When disconnected, the valve cores at both ends of the joint will automatically close, sealing off the internal medium. ·Meaning: 1. Prevent medium splashing: Especially when disconnecting under pressure, ensure personal safety and clean working environment. 2. Prevent system pressure relief: During the pressure maintenance test, when replacing the calibrated gauge, the pressure of the calibration bench system can be maintained. 3. Prevent air from entering: For oil medium systems, prevent air from entering and generating bubbles, which can affect accuracy and damage the pump. 4. Adapt to diverse instrument interfaces ·Conversion function: The verification table is usually equipped with a female head. By using different male adapters (M20 × 1.5, G1/4, NPT1/4, 7/16-20 UNFPA, etc.), it is possible to quickly adapt to the threaded interfaces of the vast majority of pressure instruments in the world. ·Meaning: One calibration table can handle various models and brands of calibrated meters, with strong universality and no need to prepare a large number of different fixed thread interfaces. 5. Improve operational safety and convenience ·One handed operation: Many designs allow for one handed insertion and removal, making it easy to operate. ·Clear connection feedback: There is usually a "click" sound or obvious tactile sensation when inserted into place, ensuring a secure connection. ·Reduce labor intensity: avoids heavy threading work, especially suitable for high-frequency and large-scale calibration tasks. --- 3、 The role reflected in the typical verification process Taking the verification of a pressure transmitter as an example: 1. Preparation: Pre screw the male adapter corresponding to the transmitter thread (such as M20 × 1.5) onto the transmitter. 2. Connection: Insert the male head of the transmitter into the female head of the calibration table with a "click" sound. (Function: Complete leak free sealing connection within 1 second) 3. Verification: Perform voltage boosting, voltage lowering, and record data. (Function: Maintain absolute sealing and stable pressure throughout the entire pressure cycle) 4. Replacement: After verification, press the female slide sleeve and easily remove the transmitter. The two ends of the joint are automatically closed, and the oil will not drip. (Function: Safe disconnection, no medium leakage, system pressure maintenance) 5. Next: Pick up the next transmitter with the connector installed and repeat step 2. (Function: Achieve rapid rotation) --- 4、 Type and selection key points 1. Type: ·Automatic locking type: most commonly used, it seals when disconnected. High pressure series from brands such as CPC, Parker, and Swagelock. ·Direct type: Disconnecting leakage, suitable for specific occasions. ·Media compatibility: Distinguish between pneumatic joints (usually made of plastic material, used for low-pressure air) and hydraulic joints (made of metal material, used for oil, water, and high-pressure gas). 2. Key selection: ·Pressure rating: must be greater than the maximum working pressure of the calibration bench (such as 70MPa, 100MPa). ·Medium compatibility: The sealing material (such as nitrile rubber NBR, fluororubber FKM) must be compatible with the calibration medium (hydraulic oil, water, air). ·Thread standard: The female end is matched with the calibration table interface, and the male end is matched with the calibrated table through a conversion joint. ·Brand and Quality: High quality connectors are the foundation for verifying accuracy and reliability, while poor quality connectors are the main source of leaks and failures. summary The quick connector of the verification station is not just a "convenient" accessory, it is the "enabler" and "guardian" of modern, efficient, and professional verification processes. Its core function is to: ·Minimize connection time → improve work efficiency. ·Reduce the possibility of leakage to zero → Ensure verification accuracy and data reliability. ·Eliminate the risk of operational damage → protect expensive equipment and extend its lifespan. ·Unify diversified interfaces to enhance system universality and flexibility. It can be said that without reliable and easy-to-use quick connectors, the performance of the calibration bench will be greatly reduced, and professional and efficient calibration work will be impossible to talk about.