Because the regulating valve controls the pressure of the high-pressure pressure test pump, it is a vital component of the high-pressure pressure test pump. Once there is a problem with the regulating valve, the internal pressure of the entire pressure test pump will not be balanced. Therefore, before installation, strict quality inspection must be carried out on the regulating valve.
, valve core type, leakage level, valve model, valve type, nominal diameter, valve seat size, flow characteristics, valve core material, valve seat material, valve body material, value grade size and sealing surface form, etc., As long as one of the contents is found to be inconsistent with the design, the design confirmation and approval should be obtained
and the execution mechanism part. This content should mainly check the actuator type, model, mode of action, spring range, air supply pressure, etc.
and the positioner part. This content mainly checks the positioner's input signal, air source pressure, electrical and air source interface size and explosion-proof level. The explosion-proof level shall not be lower than the design level requirements
and accessories. According to the design technical standards of the regulating valve, carefully clean various accessories, such as solenoid valves, handwheel mechanisms, filter pressure reducing valves, valve position switches, and special tools.
If any of the above quality inspection contents fails, then the regulating valve cannot be used for the installation of high-pressure test pumps.
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