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Hello all,
7500 series combined SRV/GCV assembled together vertically.
We faced frequent failure on this type of valve specially after overhauling the GCV stem totally stuck to the bushing. What could be the reason? What are consequences if the gap between the GCV stem and the actuator bar is greater than 0.050"?
I'm looking for special manual instruction for this type explaining the procedures of overhauling plus adjusting the stem inside the field with doing the calibration for LVDT.
Thanks
7500 series combined SRV/GCV assembled together vertically.
We faced frequent failure on this type of valve specially after overhauling the GCV stem totally stuck to the bushing. What could be the reason? What are consequences if the gap between the GCV stem and the actuator bar is greater than 0.050"?
I'm looking for special manual instruction for this type explaining the procedures of overhauling plus adjusting the stem inside the field with doing the calibration for LVDT.
Thanks