![20" high performance butterfly valve with Kinetrol actuator 20" high performance butterfly valve with Kinetrol actuator](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi1IL1tji_12OEW8i6Jb4hsyNYHAwLru5wrY1Qpzp4d_IqpX9T3N5_Me2RW8F_YMrAFF6R0lsYE8gswMvk14Lf8E1ihdN2hbolIq3uxJfW0e1rs67RA3z6Dp6ZN97RL1qzDRuns5JHMB64/s320/PTA-Chemical-Plant-Fast-Responding-Actuator.jpg) |
20" high performance butterfly valve with Kinetrol actuator |
An insurance mandate required a major chemical company who produces PTA (Purified Terephthalic Acid) to install a 20" automatic high performance butterfly valve with the capability to stroke from fully opened to fully closed in less than one second.
Requirement:
It's necessary to prevent a $30M USD axial process air compressor from rapidly going into an overspeed condition that could harm equipment, infrastructure, and personnel.
Challenge:
![20" high performance butterfly valve with Kinetrol actuator 20" high performance butterfly valve with Kinetrol actuator](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgU7BTRh2jGJvA9IDCBPLvY79RbHjR3I-2-EMUqFa4GbodD4mfHGGqMkr3fiHf8vpMia1MACaFsU-rzbgSrnCvymNarLVkG5mUfh6MArm3suw_1mAuhLyZpmvmFsstErp2INvLVHPOS8aE/s320/PTA-Chemical-Plant-Fast-Responding-Actuator-2.jpg)
The biggest challenges: stroking the valve in under one second, but without slamming the butterfly disc into the stops which can damage the valve and nearby equipment.
Solution:
Kinetrol's expertise in rapid cycling enabled us to size, select, and perform certified cycle time tests on the final assembly. This shut out any competition.
Assembly:
20" class 300 high performance butterfly valve, Kinetrol 207-120 with a 2" automatic L-Port, 3-way, compressed air supply ball valve with 097-F120, X-proof solenoid, and two exhaust silencers coupled to the size 20 supply port. Open / closed limit switch assembly. Robust SST mounting bracket and coupling. The closure time once actuator air is exhausted: 0.13 seconds.