The regulating valve is an important part of the high pressure test
pump, the regulating valve controls the pressure problem of the high
pressure test pump, once the regulating valve has problems, resulting in
the internal pressure of the entire test pump will not be able to
maintain a balance. Therefore, in the installation before, must be
strict quality inspection of the regulating valve. Wuxi Shengrui Co.
shows you, in the high pressure test pump regulating valve quality
inspection are required to check what?
1, valve model, valve
type, nominal diameter, valve seat size, valve core form, flow
characteristics, leakage grade, valve body material, valve core
material, valve seat material, CV value level size and sealing surface
form. As long as one of the contents is found to be inconsistent with
the design should be determined and approved by the design.
2,
the actuator part of this content should mainly check the actuator
model, type, role form, spring range, air supply pressure, etc..
3,
positioner part of this content should mainly be checked the input
signal, gas source pressure, electrical and gas source interface size
and explosion-proof level of the positioner, of which the
explosion-proof level shall not be lower than the design level
requirements.
4, accessories according to the design of the
technical requirements of the regulating valve carefully clean the
accessories, such as filtering pressure reducing valve, valve position
switch, solenoid valve, hand wheel mechanism, special tools.
As
long as one on the quality control content is not qualified, then the
regulating valve can’t be used for the installation of high-pressure
test pumps.