HVAC/R
Valve industry solutionsAs the control core of the air conditioning system, the refrigeration valve’s sealing performance directly affects the system energy efficiency and operational reliability.Whether it is a four-way reversing valve, an electronic expansion valve or a stop valve, any micro-leakage will lead to refrigerant loss, reduced energy efficiency, or even system failure.Hairis provides professional sealing testing solutions based on the structural characteristics and operating conditions of various types of refrigeration valves to ensure that the products maintain excellent sealing performance throughout their life cycles.
Our solutions fully cover the key inspection links in the refrigeration valve manufacturing process:
In the testing process of the sealing surface of the valve core and valve seat, we use differential pressure testing technology to accurately evaluate the flatness and sealing performance of the sealing surface to ensure the sealing reliability of the valve under frequent opening and closing conditions.
For the coil packaging part of the solenoid valve, we use helium mass spectrometry leak detection technology to accurately detect the air tightness of the coil packaging and prevent moisture intrusion from causing coil short circuit.
During the inspection stage of valve body welding parts, we use special fixtures to conduct key inspections of each welding part of the valve body to ensure the sealing integrity of the welds under system vibration and pressure shock.
For the dynamic sealing part of the valve stem, we use multi-working condition simulation detection technology to accurately evaluate the wear resistance and sealing durability of the seal by simulating the reciprocating motion under actual working conditions.
In the assembly testing process, the system uses high-precision pressure control to verify the overall tightness of the assembled valve to ensure that the product meets strict factory standards.
Quality and precision
The accuracy of dynamic seal detection reaches 99.98%, achieving accurate identification of micro-level leaks.
Supports multi-working condition simulation testing, reducing product working condition defective rate to 0.005%
Efficiency and innovation
The online detection efficiency is increased by 6 times, and the single-piece detection time is ≤8 seconds.
Comprehensive operating costs are reduced by 45%, and quality costs are reduced by 60%
Intelligent diagnosis system achieves precise location of fault location
