In this post, we will discuss a brief list of pre-commissioned control valves, including installation, inspection, testing, and use of online valves. Pre-commissioning activities are carried out during the project, preparing the unit for the main phase of operation.
The main purpose of the pre-commissioning checklist is to provide a close, extended, verification, inspection, testing, documentation and preparation system for this operation. Pre-commissioning is an activity during the construction of a new industry that includes checking the performance of the control valves inside the system to ensure that the system is a ready move for the commissioning phase. Valve maintenance manual may be obtained and reviewed.
Checklist before launching control valves
Confirm the correct location of a map according to the map.
Isolation of control valves is also checked.
Check the tap in front of the data screen.
Check the calibration certificate.
Confirm the flow direction of the control valve
Ensure proper installation of all electrical pipes, fittings and valves
Check the location wiring and cement for proper construction and labeling.
Check the polarity and color of the wire according to the loop map.
Check the general installation of the body and the valve actuator. Look for signs of excessive plumbing or improper installation of stimuli and unnecessary stress.
For rotary valves, ensure that the actuator rotates correctly by rotating the valve.
Installation of formwork plates or other devices Confirm water intake for all vents.
Check all the accessories of the accessories properly.
Confirm the DCS / PLC configuration according to the specification sheet.
Accessible tools for removing maintenance routine, removing power and plugs, wheelbarrow operation and locator maintenance, and electron maintenance. Convenient support.
Proper packaging of milk for use.
The packing gland is tightened properly.
Check all covers, screws, fittings installed and tightened properly.
If used, check manual performance.
During the construction phase, if no air source is available, use dry or clean air from the nitrogen cylinder to check the valve stroke.
Valve control course control 0%, 25%, 50%, 75%, 100% and dorsal sections 75%, 50%, 25%, 0%.
The course of movement of the valve must be for a certain period of time (if any). Mainly for emergency shut-off valves. The opening / closing status of the valve may be verified by someone in the field and recorded in the appropriate format. Change the color of the tap on the graphic screen for review.
On the alarm screen, confirm the open / closed status of the control valve and its description, the color philosophy of the alarm screen. Accordingly, automatic and manual change and valve function are checked from the controller panel. The operation of the valves cannot be checked by air bleeding. To prevent the valve from opening (FO), close the valve and turn off the air flow, then draw air. The control valve must be opened. The same is checked for signal change in HMI in the control center. Similarly, check the types of valves and their signals.
Rose Calibration Company in Melbourne, Australia with over ten years of experience provides all calibration, maintenance, and repair services throughout Australia. If you live in Sydney, Melbourne, Adelaide, Perth, Geelong, and Brisbane, you can receive your quote in less than two hours by fill-up the form via the “Booking” link.