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Safety Pig laucher and receiver for natural gas pipline cleaning
Description:
Launcher:
Pipeline operator should make sure that the isolation valve and kicker valve are closed.
If the system is a liquid system then the drain valve and vent valve should then be opened to allow air to displace the liquid; if the system is a gas system then the vent should be opened so that the launcher reaches atmospheric pressure.
After the PIG launcher is completely drained to 0 psi, with the vent and drain valves still open, the trap door should then be opened.
The PIG should then be loaded with its nose in contact with the reducer.
Closure seals and other sealing surfaces should be cleaned and lubricated as needed and then the trap door should be closed and secured.
The drain valve is then closed and the trap is slowly filled by gradually opening the kicker valve.
Once filling is complete the vent valve is closed so that the pressure will equalize across the isolation valve.
The isolation valve is then opened and the PIG is ready for launching.
Next the main valve is gradually closed, increasing the flow through the kicker and behind the PIG until finally the PIG leaves trap altogether and enters the pipeline itself.
After the PIG leaves the launcher the mainline valve is fully opened and the isolation valve and kicker valve are closed.
Receiver:
The receiver should be pressurized.
The bypass valve should be fully opened.
The isolation valve should be fully opened and the mainline valve partially closed.
Once the PIG arrives the isolation and bypass valves should be closed.
The drain valve and vent valve are then opened.
Once the trap is fully depressurized to 0 psi the trap can be opened and the PIG removed.
The closure seal and other sealing surfaces should be cleaned and lubricated as needed and the trap door should then be re-shut and secured.
The receiver should then be repressurized and returned to its original condition.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
1995
Total Annual:
>110 millions
Employee Number:
700~800
Ecer Certification：
Active Member
Sichuan Rongteng Automation Equipment Co., Ltd. Is the wholly-owned subsidiary of Sichuan Jinxing Clean Energy Equipment Holding Co., Ltd. We have been in oil and natural gas industry since 1995.
We provide solutions and equipment package for the below.
Crude oil treatment ... Sichuan Rongteng Automation Equipment Co., Ltd. Is the wholly-owned subsidiary of Sichuan Jinxing Clean Energy Equipment Holding Co., Ltd. We have been in oil and natural gas industry since 1995.
We provide solutions and equipment package for the below.
Crude oil treatment ...
